Find the mass of methane gas (CH4) with a volume of 44.8 liters.
October 7, 2021
V (CH4) = 44.8 L
m (CH4) -?
1) n (CH4) = V (CH4) / Vm = 44.8 / 22.4 = 2 mol;
2) M (CH4) = Mr (CH4) = Ar (C) * N (C) + Ar (H) * N (H) = 12 * 1 + 1 * 4 = 16 g / mol;
3) m (CH4) = n (CH4) * M (CH4) = 2 * 16 = 32 g.
Answer: The mass of CH4 is 32 g.
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