Solution: 1.95 g of H2 is allowed to react with 9.94 g of N 2, producing 1.56 g of NH 3. What is the theoretical yield in grams for this reaction under the given conditions? What is the percent yield for this reaction under the given conditions?

Problem

1.95 g of H2 is allowed to react with 9.94 g of N 2, producing 1.56 g of NH 3. What is the theoretical yield in grams for this reaction under the given conditions? What is the percent yield for this reaction under the given conditions?


Solution

Determine the theoretical yield by identifying the limiting reagent between Hand N2. Then calculate the percent yield using the provided mass of NH3.

Step 1. Write the balanced equation.

  • Reactant appears to be H2 and N2 producing NH

H2 + N2 → NH3

  • Balance N (2 on both sides):

H2 + N2 → 2NH3

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