Chapter 11, Problem 87A

Interpretation Introduction

Interpretation : Experimental information needed to determine actual and theoretical yield needs to be explained.

Concept introduction : Yield is the amount of product formed on completion of reaction.

Explanation of Solution

Mainly the given amount of reaction should be known to determine actual and theoretical yield. Then the given steps are to be followed:

Theoretical yield is the maximum amount of product formed by completion of reaction in ideal condition. No amount of reactantremains unreacted.

To determine this theoretical yield following steps are followed:

1. Write the balanced chemical equation and identify the known and unknown number of given reactants.
2. Use molar mass to convert given mass of reactant to moles.
3. Use mole ratio to convert moles of reactant into moles of product.
4. Then convert the moles of product to mass by using molar mass. This is the theoretical yield.

Actual yield is the yield obtained after completion of reaction. It is determined experimentally. After completion of reaction, product is isolated and dried carefully then, the isolated product is weighed. This is the actual yield of product.