2 grams has a volume of 2.8 liters. What is the molar mass of this gas?

univerkov | August 8, 2021 | education

Given:
m (gas) = 2 g
V (gas) = 2.8 l

To find:
M (gas) -?

Solution:
1) Calculate the amount of gas substance:
n (gas) = V (gas) / Vm = 2.8 / 22.4 = 0.125 mol;
2) Calculate the molar mass of the gas:
M (gas) = m (gas) / n (gas) = 2 / 0.125 = 16 g / mol.

Answer: The molar mass of the gas is 16 g / mol.

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