Question:

A 2.10L vessel contains 4.65g of a gas at 1.00atm and 27.0(degree)C?

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calculate the density of the gas in grams per liter.

what is the molar mass of the gas

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  1. d = mass / V = 4.65 g / 2.10 L = 2.21 g/L

    T = 27 + 273 = 300 K

    Molar mass = d x RT / p = 2.21 x 0.0821 x 300 / 1.00 =54.4 g/mol

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