What Is the Molar Mass of an Unknown Gas If

question 100

Multiple Choice

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

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