Question

What would cause the percent yield of a reaction to be less than 100%?

All of the limiting reagent gets used up.

The product participates in a side reaction.

A balanced chemical equation is used.

Pure reactants are used.

Answer 1

The product participates in a side reaction.

Step-by-step explanation:

Many are times that chemical reactions do not yield a 100% of the product required.

This is attributed to a number of factors which include;

• Presence of impurities
• Side reactions by reactants or products
• Reactions not attaining completion.
• Errors during the experiment.

Percentage yield is calculated by diving the actual or experimental yield by theoretical yield and multiplying by 100.