How to Calculate Percent Yield: Definition, Formula & Example


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If the reaction of 6.5 grams of C6H12O6 produces 2.5 grams of CO2, what is the percent yield?

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1. If the reaction of 125 grams of C6H6O3 reacts in excess of oxygen (O2) and produces 51 grams of H2O, what is the percent yield?

2. When 5.00 g of KClO3 is heated, it decomposes to potassium chloride and oxygen. What is the percent yield if 1.5 g of oxygen (O2) is produced?

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About This Quiz & Worksheet

The quiz is an array of math problems about percent yield. The questions will present you with chemical reactions. They will include the amount of reactants and the amount of products.

Quiz & Worksheet Goals

The quiz will test you on the following topics:

  • Percent yield
  • Limiting reactants
  • Ideal conditions and theoretical yield

Skills Practiced

You will practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related percent yield lesson
  • Problem solving - use acquired knowledge to calculate percent yield
  • Information recall - access the knowledge you've gained regarding when you need to find the limiting reactant

Additional Learning

By using the lesson called How to Calculate Percent Yield: Definition, Formula & Examples, you can expand what you know about this concept in chemistry and review:

  • Understanding chemical reactions
  • Exploring ideal conditions
  • Defining the theoretical and actual yield
  • Illustrating the role of the limiting reactant
  • Calculating the percent yield