What is the molar mass of an unknown gas if 34.5 g occupies a volume of 4.75 L at 500.0 K and 2.50 atm pressure? (R = 0.0821 atm • L/mol • K)
A) 19.1 g/mol
B) 25.1 g/mol
C) 34.5 g/mol
D) 77.1 g/mol
E) 119 g/mol
Correct Answer:
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