
Concept explainers
Interpretation:The reasons of lesser actual yield than theoretical yield that makes the percent yield lesser than 100% for a
Concept Introduction: A chemical reaction involves the conversion of reactant to product by breaking and making of
There can be more than one reactant molecules involve in a chemical reaction to form the products. The reactant which is present in limited amount in a chemical reaction is called as limiting reactant.

Answer to Problem 41A
- Reactions in solution may dissolve some of the product due to its solubility.
- For a reversible reaction, the equilibrium may reach before complete conversion of reactant molecules can decrease the actual yield.
- The more solubility can reduce the mass of product during filtration also as some of the solid product remains on filter paper also.
Explanation of Solution
The actual yield of the product is the amount of product which is formed at the end of reaction experimentally, whereas theoretical yield represents the amount of product calculated by expecting that 100 % of reactant changes to product. The percent yield can be shown as:
Due to different experimental errors, the actual yield is always lesser than theoretical yield. Some other reasons are as listed below:
- Reactions in solution may dissolve some of the product due to its solubility.
- For a reversible reaction, the equilibrium may reach before complete conversion of reactant molecules can decrease the actual yield.
- The more solubility can reduce the mass of product during filtration also as some of the solid product remains on filter paper also.
Due to experimental errors, the actual yield is lesser than theoretical yield.
Chapter 9 Solutions
World of Chemistry
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