Question

N2 + 3H2 → 2NH3
How many moles of NH can be produced from 10.5 grams H2?
Fill in the correct information relating to the above problem.
Given Cmpd:
Unkwn Cmpd:
Converting from
Rxn Stoich Type:
# of steps:

Answer 1

Given Cmpd: H2
Unkwn Cmpd: NH3
Converting from: mass of H2
Rxn Stoich Type: mole ratio
# of steps: 2 steps

Step 1: Convert grams of H2 to moles of H2
10.5 grams H2 * (1 mol H2 / 2.02 grams H2) = 5.20 moles H2

Step 2: Use the mole ratio from the balanced equation to find moles of NH3
From the balanced equation, 3 moles of H2 produce 2 moles of NH3
5.20 moles H2 * (2 moles NH3 / 3 moles H2) = 3.47 moles NH3

Therefore, 10.5 grams of H2 can produce 3.47 moles of NH3.