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5 Cards in this Set

  • Front
  • Back

A 1.25 g gas sample occupies 663 mL at 25 degrees C and 1.00 atm. What is the molar mass of the gas?
A. .258 g/mol
B. .0461 g/mol
C. 3.87 g/mol
D. 46.1 g/mol

D
A gas sample at STP contains 1.15 g oxygen and 1.55 g nitrogen. What is the voulme of the gas sample?
A. 1.26 L
B. 2.04 L
C. 4.08 L
D. 61.0 L
B
What is the density of argon gas at 55 degrees C and 765 mmHg?
A. 2.99 g/L
B. 1.13 x 10^3 g/L
C. 1.49 g/L
D. 8.91 g/L
C.
What is the pressure of 1.78 g of nitrogen gas confined to a volume of 0.118 L at 25 degrees C?
A. 13.2 atm
B. 369 atm
C. 1.10 atm
D. 26.3 atm
A
Which gas has the greatest kinetic energy at STP?
A. He
B. Ne
C. Ar
D. None of the above. They all have the same kinetic energy
D.