A gas mixture contains 0.850 mol of N2, 0.250 mol of H2, and 0.100 mol of CH4. What is the mole fraction of H2 in the mixture?

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2019-01-22 2:37 pm

回答 (2)

Roger the Mole

2019-01-22 2:48 pm

✔ 最佳答案

(0.250 mol H2) / (0.850 mol + 0.250 mol + 0.100 mol) = 0.208 (the mole fraction of H2)

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Trevor H

2019-01-22 2:49 pm

Total moles = 0.850 + 0.250 + 0.100 = 1.20 mol
Mol fraction H2 = 0.250mol / 1.20mol = 0.208
Mol fraction has no units.

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