3.1.12

Moles & Yield

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Moles & Yield

You can calculate the number of moles of a compound or element if you have some other information about the quantities involved. You can then use this to calculate the percentage yield of a reaction.

Illustrative background for Moles from concentrationIllustrative background for Moles from concentration ?? "content

Moles from concentration

  • You can calculate the number of moles in a solution by using the following equation:
    • Concentration = molesvolume\large\frac{moles}{volume}
  • This can be rearranged to:
    • Moles = concentration × volume
Illustrative background for Moles from massIllustrative background for Moles from mass ?? "content

Moles from mass

  • You can also calculate the number of moles of a substance by using the following equation:
    • Moles = massrelative  formula  mass\large\frac{mass}{relative \;formula\;mass}
Illustrative background for Calculating theoretical yieldIllustrative background for Calculating theoretical yield ?? "content

Calculating theoretical yield

  • You can use the number of moles and a balanced equation to calculate the theoretical yield.
    • This is the amount of product you'd expect to produce in a reaction if all the reactants were used up.
Illustrative background for Calculating percentage yieldIllustrative background for Calculating percentage yield ?? "content

Calculating percentage yield

  • You can work out the percentage yield using the following equation:
    • Percentage yield = actual  yieldtheoretical  yield\large\frac{actual \;yield}{theoretical \;yield} × 100

Jump to other topics

1Atomic Structure

2Chemical Bonding

3Quantitative Chemistry

4Chemical Changes

5Energy Changes

6The Rate & Extent of Chemical Change

7Organic Chemistry

8Chemical Analysis

9Chemistry of the Atmosphere

10Using Resources

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