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25 January, 20:35

A 15.50 gram sample of a gas exerts a pressure of 1.40 atmospheres when held in an 8.00 liter at 22 °C. What is the molar mass (grams/mol) of the gas?

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  1. 26 January, 00:02
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    33.5 g/mol

    Explanation:

    PV=nRT

    (1.40 atm) (8.00 L) = n (0.08206) (295 K)

    n=0.463 mol

    15.50 g/0.463 mol=33.5 g/mol
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