Percentage Yield

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  • Created by: Jasmin
  • Created on: 10-01-14 11:17
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  • Percentage Yield
    • May not get 100% yield because
      • Reaction may be reversible
      • Some of reactant or product may be left behind in apparatus such as when filtering or pouring
      • Some reactants may react in ways different to the expected reaction (side reactions which produce by products)
      • Amount of product obtained is yield
      • % yield = actual mass of product / theoretical mass of product x 100
    • Worked Example
    • Yields in salt preparation
      • A double salt contains more than one cation or anion
      • They form when a solution of 2 simploe salts crystallises to form a single substance
      • Example


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