Empirical Formula - The simplest whole number formula for a compound

- List each chemical symbol
- Calculate each mass/Ar or percentage/Ar
- Divide each number from step 2 by the smallest number to find the simplest whole numbers

Mass Calculations

Mass of product = mass of reactant / total Mr of reactant x total Mr of product

Percentage yield

Percentage yield is the actual yield is the actual yield compared to the teoretical yield: 0% means no expected product was obtained, 100% means that all of the expected product was obtained

Percentage yield = actual yield / theoretical yield x 100

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