Calculate the number of moles?

2015-09-10 5:42 pm
N2(g) + 3H2(g) --- 2NH3(g)

Calculate the number of moles of hydrogen required to react with 0.0935 mole of nitrogen, and the number of moles of ammonia that will form.

回答 (3)

2015-09-10 5:43 pm
✔ 最佳答案
0.28 moles H2
0.187 moles NH3
2015-09-10 6:03 pm
N₂(g) + 3H₂(g) → 2NH₃(g)
Mole ratio N₂ : H₂ : NH₃ = 1 : 3 : 2

Molar mass of N₂ = 14.01 × 2 = 28.01 g/mol
No. of moles of N2 = (0.0935 g)/(28.01 g/mol) = 0.0935/28.01 mol

No. of moles of H2 required = (0.0935/28.01 mol) × 3 = 0.0100 mol ..... (Ans)

No. of moles of NH₃ formed = (0.0935/28.01 mol) × 2 = 0.00676 mol ..... (Ans)
2015-09-10 5:49 pm
...
. . N2 + . . 3H2 →. . 2NH3
0.0935. . .0.281. . . 0.187
. . . |_1 to 3_| . . . . . . . |
. . . |______1 to 2____|

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