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OpenStudy (anonymous):
An experiment shows that a 153-mL gas sample has a mass of 0.171 g at a pressure of 761 mm Hg and a temperature of 32oC. What is the molar mass of the gas? R=0.0821 L atm / mol K
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OpenStudy (cuanchi):
the number of moles is equal to mass/MM, replace number of moles and solve for MM
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