2. How many grams of N2 are required to produce 10.0 grams of NH3? N2 + 3 H2 - 2 NH3
Step 1: Convert 10.0 g of NH3 into moles of NH3.
Step 2: Convert the moles of NH3 calculated in Step 1 into moles of N2.
Step 3: Convert the moles of N2 calculated in Step 2 into grams of N2.
Or... put it all together!