Science revision

Percentage yield

Chemistry

• The percentage yield tells you about the overall success of an experiment. It compares what you think you should get to what you actually get. (predicted and actual yield)
• Actual and predicted yields:
• The more reactants you start with the higher the actual yield will be
• The predicted yield is calcualted by a balanced reaction equation
• Formula
• Percentage yield = actual yield (g)
•                              predicted yield (g) 
• The maximum percentage is 100, so therefore a percentage yield is always between 0 and 100%
• 100% means you will get all the product you expect
• 50% means you will…