Oxyacids contains at least one H+ and an oxyanion. The " nitrous " oxyacid contains the oxyanion ________.

Oxyacids contains at least one H+ and an oxyanion. The " nitrous " oxyacid contains the oxyanion ________. A) nitrite B) nitrate C) nitride D) nitric E)...

What is the formula mass of magnesium nitride?

What is the formula mass of magnesium nitride? A) 38.32 B) 90.65 C) 100.95 D) 116.33 E) none of the above Answer: ...

How many O atoms are present in sodium chlorite?

How many O atoms are present in sodium chlorite? A) 2 B) 6 C) 4 D) 1 E) none of the above Answer: ...

How many C atoms are in ammonium acetate?

How many C atoms are in ammonium acetate? A) 5 B) 2 C) 1 D) 3 E) none of the above Answer: ...

Suppose that in an ionic compound, "M" represents a metal that could form more than one type of ion. In the formula MF2 , the charge of the M ion would be:

Suppose that in an ionic compound, "M" represents a metal that could form more than one type of ion. In the formula MF2 , the charge of the M ion would...

Suppose that in an ionic compound, "M" represents a metal that could form more than one type of ion. In the formula MP , the charge of the M ion would be:

Suppose that in an ionic compound, "M" represents a metal that could form more than one type of ion. In the formula MP , the charge of the M ion would...

If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with 2.30 g of K?

If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with 2.30 g of K? A) 0.877 B) 1.12 C) 0.112 D) 8.77 E)...

What is the mass ratio of Na to S in sodium sulfide?

What is the mass ratio of Na to S in sodium sulfide? A) 7.17 B) 55.06 C) 0.717 D) 1.43 E) none of the above Answer: ...

A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and oxygen in a definite ratio. The name of the compound described here is:

A compound has a formula mass of 61.98 amu and is comprised of atoms of sodium and oxygen in a definite ratio. The name of the compound described here...

Which of the following compounds have the smallest formula mass?

Which of the following compounds have the smallest formula mass? A) CO2 B) SO2 C) NO2 D) SiO2 E) H2O Answer: ...

Which of the following has the largest formula mass?

Which of the following has the largest formula mass? A) CO2 B) SO2 C) NO2 D) SiO2 E) H2O Answer: ...

What is the formula mass of copper(II) fluoride?

What is the formula mass of copper(II) fluoride? A) 101.55 B) 146.10 C) 90.00 D) 165.10 E) none of the above Answer: ...

What is the formula mass for diboron tetrachloride?

What is the formula mass for diboron tetrachloride? A) 127.98 amu B) 198.89 amu C) 234.34 amu D) 163.43 amu E) none of the above Answer:...

What is the formula mass for potassium nitrate?

What is the formula mass for potassium nitrate? A) 92.99 amu B) 117.11 amu C) 85.11 amu D) 101.10 amu E) none of the above Answer: ...

What is the formula mass of sulfurous acid?

What is the formula mass of sulfurous acid? A) 82.08 amu B) 98.08 amu C) 83.09 amu D) 66.08 amu E) none of the above Answer: ...

A certain oxyacid is derived from the oxyanion SO32-. The formula for the oxyacid is:

A certain oxyacid is derived from the oxyanion SO32-. The formula for the oxyacid is: A) H2SO4. B) HSO3. C) H2SO3. D) H3SO3. E) none of the above Answer:...

What is the name of HNO2?

What is the name of HNO2? A) nitric acid B) nitrous acid C) hydronitric acid D) hydronitric acid E) none of the above Answer: ...

What is the name of HIO3?

What is the name of HIO3? A) iodic acid B) hydroiodic acid C) hypoiodous acid D) iodous acid E) none of the above Answer: ...

What is the name of HI (aq)?

What is the name of HI (aq)? A) hypoiodous acid B) hydroiodic acid C) iodic acid D) iodous acid E) none of the above Answer: B ...

What is the proper name for HBr (aq)?

What is the proper name for HBr (aq)? A) hydrobromous acid B) hydrousbromic acid C) hydrobromic acid D) bromous acid E) none of the above Answer:...

What is the correct formula for the molecular compound hepta phosphorus octafluoride?

What is the correct formula for the molecular compound hepta phosphorus octafluoride? A) P5F8 B) P 7F6 C) P6F7 D) P7F8 E) none of the above Answer:...

What would the formula of diiodine pentasulfide be?

What would the formula of diiodine pentasulfide be? A) I5S2 B) I2S5 C) I4S9 D) I2S7 E) none of the above Answer: ...

What is correct name of the compound whose formula is BF3?

What is correct name of the compound whose formula is BF3? A) boron trifluoride B) boron fluoride C) monoboron trifluorine D) boron(III) fluoride E)...

What is correct name of the compound whose formula is N2O4?

What is correct name of the compound whose formula is N2O4? A) nitrogen dioxide B) nitrogen tetroxide C) dinitrogen oxide D) dinitrogen tetroxide E)...

What is the name of the molecular compound SO3?

What is the name of the molecular compound SO3? A) sulfur oxide B) sulfur(IV) oxide C) sulfur trioxide D) sulfur tetraoxide E) none of the above Answer:...

What is the name of the molecular compound SF5?

What is the name of the molecular compound SF5? A) sulfur hexafluoride B) sulfur heptafluoride C) monosulfur tetrafluoride D) sulfur pentafluoride E)...

The name trisodium phosphate is incorrect for the compound Na3PO4 because:

The name trisodium phosphate is incorrect for the compound Na3PO4 because: A) this compound should be called trisodium monophosphate. B) the sodium...

Choose the pair of names and formulas that do NOT match.

Choose the pair of names and formulas that do NOT match. A) copper(I) nitrate: CuNO3 B) copper(II) nitride: Cu3N2 C) copper(II) nitrate: Cu(NO3)2 D)...

What is the correct name for the BrO41- ion?

What is the correct name for the BrO41- ion? A) hypobromite B) perbromate C) bromite D) bromate E) none of the above Answer: ...

What is the correct formula for the hypochlorite polyatomic ion?

What is the correct formula for the hypochlorite polyatomic ion? A) ClO B)ClO2- C) ClO3- D) ClO4- E) none of the above Answer: ...

The charge of a vanadium ion in the compound V2O5 is:

The charge of a vanadium ion in the compound V2O5 is: A) 5+ B) 2+ C) 10+ D) 10- E) none of the above Answer: ...

The formula for potassium chlorate is KClO3. The formula for magnesium chloride is MgCl2. What is the formula for magnesium chlorate?

The formula for potassium chlorate is KClO3. The formula for magnesium chloride is MgCl2. What is the formula for magnesium chlorate? A) MgClO3 B)...

What is the correct formula for ammonium hydrogen sulfate?

What is the correct formula for ammonium hydrogen sulfate? A) NH4HSO4 B) (NH4)2HSO4 C) (NH4)2SO4 D) Am2HSO4 E) none of the above Answer:...

What is the correct formula for potassium dichromate?

What is the correct formula for potassium dichromate? A) K(CrO4)2 B) KCr2O7 C) K2CrO4 D) K2Cr2O7 E) none of the above Answer:...

What is the formula for the acetate polyatomic ion?

What is the formula for the acetate polyatomic ion? A) C3H2O3- B) C2H3O22- C) C2H3O2- D) C2H3O E)none of the above Answer: ...

What is the name of the compound whose formula is Na2O?

What is the name of the compound whose formula is Na2O? A) sodium monoxide B) disodium oxide C) disodium monoxide D) sodium oxide E) none of the...

Which formula shown is incorrect for the name given?

Which formula shown is incorrect for the name given? A) strontium carbonate: SrCO3 B) ammonium cyanide: NH4CN C) potassium acetate: KC2H3O2 D) calcium...

Which formula shown is incorrect for the name given?

Which formula shown is incorrect for the name given? A) magnesium nitrite: Mg(NO2)3 B) calcium carbonate: CaCO3 C) aluminum sulfate: Al2(SO4)3 D)...

What is the name of Ca(NO3)2?

What is the name of Ca(NO3)2? A) calcium dinitrite B) calcium nitrate C) calcium nitride D) calcium nitrite E) none of the above Answer:...

What is the name of CoS?

What is the name of CoS? A) cobalt(II) sulfide B) cobalt sulfide C) cobalt monosulfide D) cobaltous sulfur E) none of the above Answer:...

Which metal atom below cannot form a cation of several different charges?

Which metal atom below cannot form a cation of several different charges? A) Cr B) Mn C) Fe D) Ba E) none of the above Answer: ...

What is the name of the compound made from lithium and oxygen?

What is the name of the compound made from lithium and oxygen? A) lithium dioxide B) lithium(I) oxide C) oxygen lithide D) lithium oxide E) none...

What is the name of the ionic compound made of beryllium and chlorine?

What is the name of the ionic compound made of beryllium and chlorine? A) beryllium(II) chloride B) beryllium dichloride C) beryllium chloride D)...

A student wrote the formula for the compound aluminum phosphate as AlPO4 . What is wrong with this formula?

A student wrote the formula for the compound aluminum phosphate as AlPO4 . What is wrong with this formula? A) The compound is not charge-neutral. B)...

What is the formula for an ionic compound made of aluminum and oxygen?

What is the formula for an ionic compound made of aluminum and oxygen? A) AlO2 B) Al2O3 C) Al3O2 D) AlO E) none of the above Answer: ...

The ionic compound that forms between potassium and oxygen is:

The ionic compound that forms between potassium and oxygen is: A) K2O. B) KO. C) KO2. D) K2O2. E) none of the above Answer: ...

What is the formula for an ionic compound made of carbon and oxygen?

What is the formula for an ionic compound made of carbon and oxygen? A) CO2 B) C2O C) CO D) CO3 E) Carbon and oxygen do not form an ionic compound. Answer:...

What is the formula for an ionic compound made of magnesium and sulfur?

What is the formula for an ionic compound made of magnesium and sulfur? A) MgS B) MgS2 C) Mg2S D) Mg2S3 E) none of the above Answer: ...

What is the formula for an ionic compound made of barium and nitrogen?

What is the formula for an ionic compound made of barium and nitrogen? A) Ba3N2 B) Ba2N3 C) BaN D) Ba2N4 E) none of the above Answer: ...

Which of the following is a molecular compound?

Which of the following is a molecular compound? A) barium sulfide B) calcium acetate C) potassium hydroxide D) nitrogen monoxide E) none of the above Answer:...

Which of the following species is a molecular element?

Which of the following species is a molecular element? A) neon B) sodium C) chlorine D) carbon dioxide E) none of the above Answer: ...

Ammonium fluoride is considered which of the following?

Ammonium fluoride is considered which of the following? A) atomic element B) molecular element C) molecular compound D) ionic compound E) none of...

Fluorine is considered which of the following?

Fluorine is considered which of the following? A) atomic element B) molecular element C) molecular compound D) ionic compound E) none of the above Answer:...

Carbon monoxide is considered which of the following?

Carbon monoxide is considered which of the following? A) atomic element B) molecular element C) molecular compound D) ionic compound E) none of the...

Which among the following elements does NOT exist as a diatomic molecule in nature?

Which among the following elements does NOT exist as a diatomic molecule in nature? A) hydrogen B) nitrogen C) fluorine D) neon E) none of the above Answer:...

Carbon is considered which of the following?

Carbon is considered which of the following? A) atomic element B) molecular element C) molecular compound D) ionic compound E) none of the above Answer:...

What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms?

What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms? A) O10P4 B) 10OP4 C) 4PO10 D) P4O10 E) none of the...

What is the correct formula for a compound that has three oxygen atoms and one sulfur atom?

What is the correct formula for a compound that has three oxygen atoms and one sulfur atom? A) O3S B) SO3 C) 3OS D) SO3 E) none of the above Answer:...

How many of each type of atom are there in the formula (NH4)2HPO4?

How many of each type of atom are there in the formula (NH4)2HPO4? A) N = 2, H = 9, P = 1, O = 4 B) N = 1, H = 5, P = 1, O = 4 C) N = 2, H = 5, P...

How many of each type of atom are there in the formula Ca3(PO4)2?

How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca = 3, P = 1, O = 4 B) Ca = 3, P = 2, O = 4 C) Ca = 3, P = 2, O = 8 D) Ca =...

How many of each type of atoms are there in the formula NH4C2H3O2?

How many of each type of atoms are there in the formula NH4C2H3O2? A) N = 4, H = 7, C = 2, O = 2 B) N = 1, H = 4, C = 2, O = 2 C) N = 1, H = 3, C...

Which formula shows the proper use of parentheses?

Which formula shows the proper use of parentheses? A) Ca(F)2 B) Ca(SO4) C) (NH4)3(PO4) D) Ca(NO3)2 E) none of the above Answer: ...

How many oxygen atoms are in the formula Al2(CO3)3?

How many oxygen atoms are in the formula Al2(CO3)3? A) 3 B) 9 C) 1 D) 6 E) none of the above Answer: ...

How many carbon atoms are in the formula Al2(CO3)3?

How many carbon atoms are in the formula Al2(CO3)3? A) 3 B) 9 C) 1 D) 6 E) none of the above Answer: ...

How many total atoms are in the formula Al2(CO3)3?

How many total atoms are in the formula Al2(CO3)3? A) 8 B) 9 C) 12 D) 14 E) none of the above Answer: ...

Which of the following statements about chemical formulas is FALSE?

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number of each type of atom in the compound. B)...

Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0. If decomposition of compound XY gives 12.0 grams of X, then how many grams of Y must form?

Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0. If decomposition of compound XY gives 12.0 grams of X, then how many grams of Y must...

What is the oxygen-to-sulfur mass ratio of sulfur dioxide?

What is the oxygen-to-sulfur mass ratio of sulfur dioxide? A) 0.5 B) 1.0 C) 2.0 D) 16 E) none of the above Answer: ...

The phosphorous-to-hydrogen mass ratio is 10.2 for a compound. This ratio could correspond to the compound:

The phosphorous-to-hydrogen mass ratio is 10.2 for a compound. This ratio could correspond to the compound: A) PH. B) PH2. C) PH3. D) PH6. E) none...

What is the oxygen-to-hydrogen mass ratio for H2O2?

What is the oxygen-to-hydrogen mass ratio for H2O2? A) 0.125 B) 4 C) 8 D) 16 E) none of the above Answer: ...

The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law? A) Law of Constant Composition B) Law of Constant...

The law of constant composition states:

The law of constant composition states: A) Matter cannot be either created or destroyed in a chemical reaction. B) The nucleus is a dense region of...

The first chemist to formally state the law of constant composition was:

The first chemist to formally state the law of constant composition was: A) Dalton. B) Mendeleev. C) Rutherford. D) Proust. E) none of the above Answer:...

When elements combine to form compounds:

When elements combine to form compounds: A) their properties are an average of all elements in the compound. B) their properties change completely. C)...

If you put a living cell into seawater containing a higher concentration of sodium chloride, the cell loses water through osmosis.

If you put a living cell into seawater containing a higher concentration of sodium chloride, the cell loses water through osmosis. Answer: TR...

Osmosis is the process in which a solvent moves from an area of low solute concentration to an area of high solute concentration.

Osmosis is the process in which a solvent moves from an area of low solute concentration to an area of high solute concentration. Answer: TR...

A 0.10 molality solution of the sugar glucose (molecular weight = 180.10 g/mol) and a 0.10 molality solution of sucrose (molecular weight = 342.34 g/mol) would both boil at the same temperature.

A 0.10 molality solution of the sugar glucose (molecular weight = 180.10 g/mol) and a 0.10 molality solution of sucrose (molecular weight = 342.34 g/mol)...

Upon completing a dilution from a stock solution, you will always have more volume of solution than you started with and it will have a lower concentration than the stock solution.

Upon completing a dilution from a stock solution, you will always have more volume of solution than you started with and it will have a lower concentration...

A stock solution is a more concentrated form than what is typically used in a lab. It often requires further dilution.

A stock solution is a more concentrated form than what is typically used in a lab. It often requires further dilution. Answer: TR...

If 50 grams of salt dissolves into 250 grams of water, the resulting solution must have a mass of 300 grams.

If 50 grams of salt dissolves into 250 grams of water, the resulting solution must have a mass of 300 grams. Answer: TR...

One liter of a 2.0 M NaOH (aq) solution contains the same number of Na+ ions as does one liter of a 1.0 M Na2CO3 (aq) solution.

One liter of a 2.0 M NaOH (aq) solution contains the same number of Na+ ions as does one liter of a 1.0 M Na2CO3 (aq) solution. Answer: TR...

Molarity is defined as the moles of solute per liter of solution.

Molarity is defined as the moles of solute per liter of solution. Answer: TR...

A solution that is 13.58 percent by mass of sugar contains of sugar dissolved in of water.

A solution that is 13.58 percent by mass of sugar contains of sugar dissolved in of water. Answer: TR...

The solubility of gases in water increases with increasing pressure above the water.

The solubility of gases in water increases with increasing pressure above the water. Answer: TR...

Warm beer goes flat quicker than cold beer.

Warm beer goes flat quicker than cold beer. Answer: TR...

The solubility of gases in water decreases with increasing temperature.

The solubility of gases in water decreases with increasing temperature. Answer: TR...

Tap water contains dissolved nitrogen and oxygen.

Tap water contains dissolved nitrogen and oxygen. Answer: TR...

The solubility of solids in water generally increases with increasing temperature.

The solubility of solids in water generally increases with increasing temperature. Answer: TR...

Salt water is an example of a strong electrolyte solution.

Salt water is an example of a strong electrolyte solution. Answer: TR...

A supersaturated solution is unstable and crystallization usually occurs.

A supersaturated solution is unstable and crystallization usually occurs. Answer: TR...

A saturated solution holds the maximum amount of solute under the solution conditions.

A saturated solution holds the maximum amount of solute under the solution conditions. Answer: TR...

It would be expected that methanol (CH3OH) would be more soluble in water than methane (CH4) would be.

It would be expected that methanol (CH3OH) would be more soluble in water than methane (CH4) would be. Answer: TR...

Vitamin C is a water-soluble vitamin, so it is likely that this vitamin is polar.

Vitamin C is a water-soluble vitamin, so it is likely that this vitamin is polar. Answer: TR...

The fact that the oceans contain salt water shows that polar solvents dissolve ionic solutes.

The fact that the oceans contain salt water shows that polar solvents dissolve ionic solutes. Answer: TR...

Steel is an example of a solid solution.

Steel is an example of a solid solution. Answer: TR...

Air is an example of a gaseous solution.

Air is an example of a gaseous solution. Answer: TR...

A solution is a homogeneous mixture of two or more substances.

A solution is a homogeneous mixture of two or more substances. Answer: TR...

Given that the freezing point depression constant for water is 1.86°C kg/mol, calculate the change in freezing point for a 0.907 M sugar solution.

Given that the freezing point depression constant for water is 1.86°C kg/mol, calculate the change in freezing point for a 0.907 M sugar solution. A)...

Calculate the molality of a solution prepared by dissolving 19.9 g of KCl in 750.0 ML of water.

Calculate the molality of a solution prepared by dissolving 19.9 g of KCl in 750.0 ML of water. A) 0.200 B) 0.356 C) 4.99 D) 0.267 E) none of the...

Determine the volume (liters) of 0.500M NaOH solution required to neutralize 1.50L of 0.750M H2SO4.

Determine the volume (liters) of 0.500M NaOH solution required to neutralize 1.50L of 0.750M H2SO4.  The neutralization reaction is H2SO4 (aq)...

How many mL of 0.112 M Pb(NO3)2 are needed to completely react with 25.0mL of 0.105 M KI?

How many mL of 0.112 M Pb(NO3)2 are needed to completely react with 25.0mL of 0.105 M KI?  Given Pb(N )2(aq) + 2KI(aq) ? Pb (s) + 2KN (aq) A)...

What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L?

What is the final concentration (M) of a solution prepared by diluting 50.0 mL of a 6.00 M KCl solution to a volume of 0.500 L?  A) 1.67 B) 0.600 C)...

Which of the following aqueous solutions has the highest molar concentration of Na+ (aq)?

Which of the following aqueous solutions has the highest molar concentration of Na+ (aq)?  (Assume each compound is fully dissolved in water.) A)...

What volume (L) of 2.00 M KCl solution contains 25.0 g of KCl?

What volume (L) of 2.00 M KCl solution contains 25.0 g of KCl? A) 0.335 B) 0.168 C) 0.672 D) 1.49 E) none of the above Answer: ...

How many grams of KCl are present in 75.0 mL of 2.10 M KCl?

How many grams of KCl are present in 75.0 mL of 2.10 M KCl? A) 5.59 B) 117 C) 2.66 D) 11.7 E) none of the above Answer: ...

How many moles of KCl are present in 95.3 mL of KCl?

How many moles of KCl are present in 95.3 mL of KCl? A) 0.0500 B) 5.00 C) 20.0 D) 0.200 E) none of the above Answer: ...

Calculate the molarity of a KCl solution made by dissolving 24.7 g of KCl in a total volume of 500. mL.

Calculate the molarity of a KCl solution made by dissolving 24.7 g of KCl in a total volume of 500. mL.  A) 0.331 B) 0.663 C) 0.166 D) 6.04 E)...

Calculate the molarity of a KCl solution prepared by dissolving 0.525 moles of KCl in 250. mL of water.

Calculate the molarity of a KCl solution prepared by dissolving 0.525 moles of KCl in 250. mL of water.  A) 0.476 B) 0.00210 C) 2.10 D) 2.02 E)...

Calculate the mass percent of a NaCl solution prepared by mixing 47.0 g NaCl with 125.0 mL of pure water.

Calculate the mass percent of a NaCl solution prepared by mixing 47.0 g NaCl with 125.0 mL of pure water. A) 27.3 B) 72.3 C) 47.0 D) 37.6 E) none...

What is the volume of 28.0 g of nitrogen gas at STP?

What is the volume of 28.0 g of nitrogen gas at STP? A) 33.6 L B) 11.2 L C) 22.4 L D) 44.8 L E) none of the above Answer: ...

What is the pressure of a 1.0 L flask containing 0.60 g of He at 25°C? (R= 0.0821 L atm/ mol K)

What is the pressure of a 1.0 L flask containing 0.60 g of He at 25°C? (R= 0.0821 L atm/ mol K) A) 98 atm B) 3.7 atm C) 7.3 atm D) 15 atm E) none...

What is the molecular weight of a gas if a 21.0 g sample has a pressure of 836 mm Hg at 25.0°C in a 2.00 L flask? (R= 0.0821 L atm/ mol K)

What is the molecular weight of a gas if a 21.0 g sample has a pressure of 836 mm Hg at 25.0°C in a 2.00 L flask? (R= 0.0821 L atm/ mol K) A) 243...

What is the volume (in liters) of 1.00 mole of krypton gas that has a pressure of 1140 mm Hg and a temperature of 25.0°C? (R= 0.0821 L atm/ mol K)

What is the volume (in liters) of 1.00 mole of krypton gas that has a pressure of 1140 mm Hg and a temperature of 25.0°C? (R= 0.0821 L atm/ mol K) A)...

If the number of moles of a gas initially contained in a 2.10 L vessel is doubled, what is the final volume of the gas in liters? (Assume the pressure and temperature remain constant.)

If the number of moles of a gas initially contained in a 2.10 L vessel is doubled, what is the final volume of the gas in liters? (Assume the pressure...

A rigid cylinder contains 2.00 liters of gas at a temperature of 25°C. If the pressure of this gas is changed from 0.500 atmospheres to 1.50 atmospheres, what will be the new temperature (in Kelvin, reported to three significant figures) of the gas? (The volume is constant.)

A rigid cylinder contains 2.00 liters of gas at a temperature of 25°C. If the pressure of this gas is changed from 0.500 atmospheres to 1.50 atmospheres,...

What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K, that is compressed to a final volume of 2.51 L at 273K?

What is the final pressure (expressed in atm) of a 3.05 L system initially at 724 mm Hg and 298 K, that is compressed to a final volume of 2.51 L at...

What is the final volume (L) of a 1.00 L system at 315 K and 1.10 atm if STP conditions are established?

What is the final volume (L) of a 1.00 L system at 315 K and 1.10 atm if STP conditions are established? A) 1.05 B) 0.935 C) 1.50 D) 0.953 E) none...

What is the change in temperature of a 2.50 L system when its volume is reduced to 1.75 L if the initial temperature was 298 K?

What is the change in temperature of a 2.50 L system when its volume is reduced to 1.75 L if the initial temperature was 298 K?  A) 209 K B)...

What is the final volume of a gas that initially occupies 2.50 L at 298 K and is subsequently heated to 321 K?

What is the final volume of a gas that initially occupies 2.50 L at 298 K and is subsequently heated to 321 K? A) 2.69 L B) 2.96 L C) 2.23 L D) 2.32...

What is the final volume (L) of a 10.0 L system that has the pressure quartered?

What is the final volume (L) of a 10.0 L system that has the pressure quartered? A) 0.250 B) 17.1 C) 2.50 D) 40.0 E) none of the above Answer:...

What is the final pressure of a system (atm) that has the volume increased from 0.75 L to 1.1 L with an initial pressure of 1.25 atm?

What is the final pressure of a system (atm) that has the volume increased from 0.75 L to 1.1 L with an initial pressure of 1.25 atm? A) 1.1 B) 0.85 C)...

What is the pressure of 760 mm Hg when expressed in units of in Hg?

What is the pressure of 760 mm Hg when expressed in units of in Hg? A) 29.92 in Hg B) 101,325 in Hg C) 760 in Hg D) 1 in Hg E) none of the above Answer:...

How many liters of O2 (g) are needed to react completely with 56.0 L of CH4 (g) at STP to produce CO2 (g) and H2O (g)?

How many liters of O2 (g) are needed to react completely with 56.0 L of CH4 (g) at STP to produce CO2 (g) and H2O (g)? Given CH4 (g) + 2O2 (g) ? CO2...

Water can be formed according to the equation 2H2 (g) + O2 (g) ? 2H2O (g) If 8.0 L of hydrogen is reacted at STP, exactly how many liters of oxygen at STP would be needed to allow complete reaction?

Water can be formed according to the equation2H2 (g) + O2 (g) ? 2H2O (g)If 8.0 L of hydrogen is reacted at STP, exactly how many liters of oxygen at...

If 15.0 L of nitrogen is formed at STP, how many liters of hydrogen will be produced (also measured at STP)?

Ammonia gas decomposes according to the equation 2NH3(g) ? N2(g) + 3H2(g) If 15.0 L of nitrogen is formed at STP, how many liters of hydrogen will be...

Suppose you had a balloon containing 1 mole of helium at STP and a balloon containing 1 mole of oxygen at STP. Which statement is TRUE?

Suppose you had a balloon containing 1 mole of helium at STP and a balloon containing 1 mole of oxygen at STP. Which statement is TRUE? A) The balloons...

At STP, 12.69 g of a noble gas occupies 14.09 L. What is the identity of the noble gas? (R= 0.0821 L atm/ mol K)

At STP, 12.69 g of a noble gas occupies 14.09 L. What is the identity of the noble gas?(R= 0.0821 L atm/ mol K) A) He B) Ne C) Ar D) Kr E) not enough...

Which set of conditions reflect STP?

Which set of conditions reflect STP? A) 298 K, 1 atm B) 25°C, 14.7 psi C) 373 K, 760 torr D) 273 K, 1 Pa E) 273 K, 760 mm Hg Answer: ...

Suppose a chemical reaction generated a 50% nitrogen/50% oxygen (by volume) mixture of gas that had a total volume of 22.4 liters at STP. This gas sample is composed of

Suppose a chemical reaction generated a 50% nitrogen/50% oxygen (by volume) mixture of gas that had a total volume of 22.4 liters at STP. This gas sample...

Hydrogen gas produced in the laboratory by the reaction of zinc and hydrochloric acid was collected over water at 25°C. The barometric pressure at the time was 742.5 mm Hg. What is the pressure of dry hydrogen gas if the vapor pressure of water at 25°C is 23.8 mm Hg?

Hydrogen gas produced in the laboratory by the reaction of zinc and hydrochloric acid was collected over water at 25°C. The barometric pressure at the...

The vapor pressure of water at 20.0°C is 17.5 mm Hg. If the pressure of a gas collected over water was measured to be 453.0 mm Hg. What is the pressure of the pure gas?

The vapor pressure of water at 20.0°C is 17.5 mm Hg. If the pressure of a gas collected over water was measured to be 453.0 mm Hg. What is the pressure...

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere, 0.21 atm. If a particular heliox mixture to be carried by a scuba diver is at a pressure of 7.00 atm, what should be the partial pressure due to helium in order to maintain the pressure due to oxygen at 0.21 atm?

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere, 0.21 atm. If a particular heliox mixture to be carried by a scuba...

What problem could happen if deep sea divers used pure oxygen in their tanks?

What problem could happen if deep sea divers used pure oxygen in their tanks? A) hypoxia B) oxygen toxicity C) nitrogen narcosis D) rapture of oxygen E)...

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld. If a gas cylinder of this two-part mixture was at 4.0 atm pressure and this mixture was 90.% argon, what would be the pressure due to the carbon dioxide gas component?

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld. If a gas cylinder of this two-part...

A gas cylinder contains only the gases radon, nitrogen, and helium. The radon has a pressure of 222 torr while the nitrogen has a pressure of 446 torr. If the total pressure inside the cylinder is 771 torr, what is the pressure that is due to the helium?

A gas cylinder contains only the gases radon, nitrogen, and helium. The radon has a pressure of 222 torr while the nitrogen has a pressure of 446 torr....

If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system?

If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system? A)...

What is the third most abundant component of dry air?

What is the third most abundant component of dry air? A) carbon dioxide B) oxygen C) nitrogen D) argon E) smog Answer: ...

What is the major component of the air we breathe?

What is the major component of the air we breathe? A) nitrogen B) oxygen C) argon D) carbon dioxide E) smog Answer: ...

Which of the following diatomic elements would have a mass of 19.08 grams stored in a 3.82 L container at 3,632 mm Hg and 100°C? (R= 0.0821 L atm/ mol K)

Which of the following diatomic elements would have a mass of 19.08 grams stored in a 3.82 L container at 3,632 mm Hg and 100°C? (R= 0.0821 L atm/ mol...

A 3.76 g sample of a noble gas is stored in a 2.00 L vessel at 874 torr and 25°C. What is the noble gas? (R= 0.0821 L atm/ mol K)

A 3.76 g sample of a noble gas is stored in a 2.00 L vessel at 874 torr and 25°C. What is the noble gas?(R= 0.0821 L atm/ mol K) A) He B) Ne C)...

Which conditions can cause nonideal gas behavior by 1) decreasing the space between gas particles or 2) by slowing gas particles so that interactions are significant?

Which conditions can cause nonideal gas behavior by 1) decreasing the space between gas particles or 2) by slowing gas particles so that interactions...

What is the temperature (°C) of 2.48 moles of gas stored in a 30.0 L container at 1559 mm Hg? (R= 0.0821 L atm/ mol K)

What is the temperature (°C) of 2.48 moles of gas stored in a 30.0 L container at 1559 mm Hg?(R= 0.0821 L atm/ mol K) A) 302 B) 189 C) 29 D) -84 E)...

What is the pressure of a 3.00 L gas vessel that has 18.0 grams of helium at 25 C? (R= 0.0821 L atm/ mol K)

What is the pressure of a 3.00 L gas vessel that has 18.0 grams of helium at 25 C?  (R= 0.0821 L atm/ mol K) A) 147 atm B) 36.7 atm C) 32.6...

A sample of 0.255 mole of gas has a volume of 748 mL at 28°C. Calculate the pressure of this gas. (R= 0.0821 L · atm / mol · K)

A sample of 0.255 mole of gas has a volume of 748 mL at 28°C. Calculate the pressure of this gas. (R= 0.0821 L · atm / mol · K) A) 8.42 atm B) 0.784...

The ideal gas law is

The ideal gas law is A) PV = nRT B) P = nRT/V C) T = PV/nR D) V = nRT/P E) All of the above are forms of the ideal gas law. Answer: ...

For an ideal gas, which of the following pairs of variables are inversely proportional to each other (if all other factors remain constant)?

For an ideal gas, which of the following pairs of variables are inversely proportional to each other (if all other factors remain constant)? A) P,...

Which of the following gas law relationships is true?

Which of the following gas law relationships is true? A) V a 1/P B) V a T C) V a n D) all of the above are true E) none of the above are true Answer:...

If each of the following gas samples have the same temperature and pressure, which sample has the greatest volume?

If each of the following gas samples have the same temperature and pressure, which sample has the greatest volume? A) 1 gram of O2 B) 1 gram of Ar C)...

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of 1.4 L given that the final volume was 7.2 L?

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of 1.4 L given that the final volume was 7.2 L? A)...

What happens to the volume of a gas when you double the number of moles of gas while keeping the temperature and pressure constant?

What happens to the volume of a gas when you double the number of moles of gas while keeping the temperature and pressure constant? A) The volume...

To solve problems using Avogadro's Law, which mathematical equation should be used?

To solve problems using Avogadro's Law, which mathematical equation should be used? A) n1/P1 = n2/P2 B) n1V1 = n2V2 C) V1/n1 = V2/n2 D) P1V1 = P2V2 E)...

Avogadro's Law is expressed as

Avogadro's Law is expressed as A) V is proportional to 1/n B) P is proportional to n C) n is proportional to 1/T D) V is proportional to n E) none...

What is the initial temperature (°C) of a system that has the pressure decreased by 10 times while the volume increased by 5 times with a final temperature of 150 K?

What is the initial temperature (°C) of a system that has the pressure decreased by 10 times while the volume increased by 5 times with a final temperature...

What is the final volume of a 500.0 mL gas container that increased in temperature from 299 K to 333 K while the pressure increased from 1.00 atm to 1.54 atm?

What is the final volume of a 500.0 mL gas container that increased in temperature from 299 K to 333 K while the pressure increased from 1.00 atm to...

A sample of helium gas initially at 37.0°C, 785 torr and 2.00 L was heated to 58.0°C while the volume expanded to 3.24L. What is the final pressure in atm?

A sample of helium gas initially at 37.0°C, 785 torr and 2.00 L was heated to 58.0°C while the volume expanded to 3.24L. What is the final pressure...

A 325 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three significant figures in °C)?

A 325 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286 mL and the pressure...

If the initial pressure of a system was 1.00 atm and the volume was halved and the kelvin temperature was tripled, what is the final pressure?

If the initial pressure of a system was 1.00 atm and the volume was halved and the kelvin temperature was tripled, what is the final pressure? A)...

Suppose a balloon was released from the ground and rose to such a height that both the atmospheric pressure and atmospheric temperature decreased. Which statement is TRUE?

Suppose a balloon was released from the ground and rose to such a height that both the atmospheric pressure and atmospheric temperature decreased. Which...

A certain volume of gas was confined in a rigid container. If the pressure of the gas sample in the container was doubled, what happened to the temperature?

A certain volume of gas was confined in a rigid container. If the pressure of the gas sample in the container was doubled, what happened to the temperature? A)...

What is the proper form of the combined gas law?

What is the proper form of the combined gas law? A) P1T1/V1 = P2T2/V2 B) V1T1/P1 = V2T2/P2 C) P1V1/T1 = P2V2/T2 D) P1V1T1 = P2V2T2 E) none of the...

Which of the following statements is TRUE for gases? 1. The temperature of a gas is inversely proportional to its pressure. 2. The volume of a gas is directly proportional to the pressure in torr. 3. The pressure of a gas is due to collisions of the gas molecules.

Which of the following statements is TRUE for gases?1. The temperature of a gas is inversely proportional to its pressure.2. The volume of a gas is...

Gas density can be calculated by dividing the mass of gas by its volume. If you took a balloon of gas and then warmed the balloon in a sunny window, what can now be said about the density of the gas in the balloon?

Gas density can be calculated by dividing the mass of gas by its volume. If you took a balloon of gas and then warmed the balloon in a sunny window,...

A balloon originally had a volume of 0.439 L at 44°C and a pressure of 729 torr. To what temperature must the balloon be cooled to reduce its volume to 378 mL if the pressure remained constant?

A balloon originally had a volume of 0.439 L at 44°C and a pressure of 729 torr. To what temperature must the balloon be cooled to reduce its volume...