Answer to Question #111293 in General Chemistry for Jordyn

General Chemistry

Question #111293

a gas has a density of 1.98 g/L at standard temperature and pressure what is the molar mass

Expert's answer

At STP molar volume is

"V_m = 22.4 dm^3\/mol"

"density = \\frac{M}{V_m}"

"M = density\\times V_m = 1.98 \\frac{g}{L}\\times 22.4 \\frac{L}{mol}= 44.4 \\frac{g}{mol}"

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