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Standard Temperature and Pressure

7. Gases / Standard Temperature and Pressure / Problem 6

What is the molar mass of a gas if 285 mL of the gas weighs 2.33 g at STP?

A

175 g • mol^-1

B

63.3 g • mol^-1

C

183 g • mol^-1

D

20.0 g • mol^-1

E

200 g • mol^-1

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