What is protein denaturation?

What is protein denaturation? Denaturation involves the disruption of the native confirmation or shape (secondary and tertiary structures) of the protein...

Explain the xanthoproteic test. What can the xanthoproteic test be used for?

Explain the xanthoproteic test. Almost all proteins will give a positive test, but only the three amino acids containing aromatic rings will give positive...

Explain the ninhydrin reaction. What can the ninhydrin test be used for?

Explain the ninhydrin reaction. Amino acids are oxidized to aldehyde and ammonia when heated. The liberated ammonia reacts with ninhydrin to produce...

Explain the Biuret Test? What can the Biuret Test be used for?

Explain the  Biuret Test? It identifies the presence of peptides and proteins. A minimum of two peptide bonds (tripeptide) are required for a...

Raising the temperature of the reaction mixture will:

Raising the temperature of the reaction mixture will: a. cause [CO2] to increase c. have no effect b. cause [H2O] to increase d. cannot be determined Answer: b....

Addition of CO to an equilibrium mixture of the above reaction will

Addition of CO to an equilibrium mixture of the above reaction will a. cause [CO2] to increase c. have no effect b. cause [H2O] to increase d. cannot...

If you mixed 5.0 mol CO2, 0.10 mol H2, 3.5 mol of CO, and 0.0010 mol H2O in a one-liter container, in which direction would the reaction proceed?

If you mixed 5.0 mol CO2, 0.10 mol H2, 3.5 mol of CO, and 0.0010 mol H2O in a one-liter container, in which direction would the reaction proceed? a....

The equilibrium constant, Kc, for the following reaction is 1.20 x 10-2 at 500K: PCl5(g) PCl3(g) + Cl2(g). Calculate Kp for this reaction.

The equilibrium constant, Kc, for the following reaction is 1.20 x 10-2 at 500K: PCl5(g) PCl3(g) + Cl2(g). Calculate Kp for this reaction. a. 0.0120 b....

If an equilibrium mixture of the three gases in a 5.0L container at 298K contains 0.304mol of NOBr gas and 0.401mol of Br2 gas, what is the equilibrium concentration of NO?

The equilibrium constant, K, for the following reaction is 6.50 x 10-3 at 298K 2NOBr(g) 2NO(g) + Br2(g) If an equilibrium mixture of the three gases...

Which of the following statements is true about the above reaction?

The equilibrium constant, K, for the following reaction is 1.96 x 105 at 548K NH3(g) + HCl(g) NH4Cl (s) Which of the following statements is true...

Dinitrogen tetraoxide exists in equilibrium with nitrogen dioxide: N2O4(g) 2NO2(g). At a certain temperature, K = 6.98 x 104. Which of the following statements is true about this reaction?

Dinitrogen tetraoxide exists in equilibrium with nitrogen dioxide: N2O4(g) 2NO2(g). At a certain temperature, K = 6.98 x 104. Which of the following...

The reaction between lead ion and chloride ion is: Pb2+(aq) + 2Cl-(aq) PbCl2(s). If K = 2.57 x 107 for this reaction, what is the value for the equilibrium constant for the reaction: 2PbCl2(s) 2Pb2+(aq) + 4Cl-(aq)?

The reaction between lead ion and chloride ion is: Pb2+(aq) + 2Cl-(aq) PbCl2(s). If K = 2.57 x 107 for this reaction, what is the value for the equilibrium...

Which of the following is true about a chemical equilibrium?

Which of the following is true about a chemical equilibrium? a. It is microscopically static and macroscopically dynamic. b. It is microscopically...

What color will the indicator change when NaOH is added?

An indicator, HIn, shows a color change from blue to yellow, depending on the acidity of the solution: HIn (aq) H+ (aq) + In- (aq) (blue) (yellow) What...

Kc = 2.90 x 10-2 and ΔHo = 198 kJ/mol at 1150K. Which of the following changes will favor the production of SO2?

Consider the following system at equilibrium: 2SO3(g) 2SO2(g) + O2(g) Kc = 2.90 x 10-2 and ΔHo = 198 kJ/mol at 1150K. Which of the following changes...

Calculate the equilibrium partial pressure of (CH3)2CHOH when (CH3)2CHOH is introduced into an evacuated flask at a pressure of 1.04 atm at 452K.

The equilibrium constant, Kp, for the following reaction is 4.44 x 10-4 at 452K. (CH3)2CHOH(g) (CH3)2CO(g) + H2(g) Calculate the equilibrium partial...

A reaction mixture was found to contain 0.0381 moles of HI, 0.0471 moles of H2, and 0.0364 moles of I2 in a 1.00 L container. Is the reaction at equilibrium? And if not, what direction must it run in order to reach equilibrium?

Consider the following reaction where Kc = 1.18 at 150K: 2HI(g) H2(g) + I2(s) A reaction mixture was found to contain 0.0381 moles of HI, 0.0471 moles...

When she introduced 0.0683 moles of SO3 gas into a 1.00L container, she found the equilibrium concentration of O2 gas to be 0.0152 M. What is the value of the equilibrium constant, K?

A student ran the following reaction in the laboratory at 1090 K: 2SO3(g) 2SO2(g) + O2(g) When she introduced 0.0683 moles of SO3 gas into a 1.00L...

An equilibrium mixture of the three gases in a 14.1 L container at 352K contains 0.121 moles of CH2Cl2, 0.661 moles of CH4, and 0.223 moles of CCl4. What is the value of the equilibrium constant at 352K?

Consider the following reaction: 2 CH2Cl2(g) CH4(g) + CCl4(g) An equilibrium mixture of the three gases in a 14.1 L container at 352K contains 0.121...

The reaction: 2S(s) + 3O2(g) 2SO3(g) has an equilibrium constant of K = 1.91. What is the value of the equilibrium constant for the reaction: SO3(g) S(s) + 3/2 O2(g) ?

The reaction: 2S(s) + 3O2(g) 2SO3(g) has an equilibrium constant of K = 1.91. What is the value of the equilibrium constant for the reaction: SO3(g)...

For the reaction, N2O4(g) 2NO2(g), which of the following statements is true about this reaction at equilibrium?

For the reaction, N2O4(g) 2NO2(g), which of the following statements is true about this reaction at equilibrium? a. The concentration of NO2 is equal...