This means that if you Know the moles of A, you can calculate the moles of A_2B

Question

This means that if you Know the moles of A, you can calculate the moles of A_2B produced by constructing a conversion factor and moles A_2B product = (moles A) times 1 mol A_2 B/2 mol A Likewise, if you know the moles of B, you can calculate the moles of A_2 B produced by constructing a conversion factor and using the moles A_2B produced = (moles B) times 1 mol A_2 B/1 mol B Consider the following balanced reaction between hydrogen and nitrogen to form ammonia: 3H_2 (g) + N_2(g) rightarrow 2NH_3(g) How many moles of NH_3 can be produced from 24.0 mol of H_2 and excess N_2? Express the number of moles to three significant figures.

Explanation / Answer

part A

N2(g) + 3H2(g) ----> 2 NH3(g)

no of mol of H2 = 24 mol

no of mol of N2 = excess

from equation

1 mol N2 = 3 mol H2 = 2 mol NH3

No of mol NH3 produced = 24*2/3 = 16 mol

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