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: C

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 of the above

Answer: B

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 amu
B) 1.89 amu
C) 234 amu
D) 11.1 amu
E) none of the above

Answer: C

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) 1.37
B) 16.3
C) 0.0215
D) 0.00180
E) none of the above

Answer: B