```
% Yield = (Actual Yield / Theoretical Yield) × 100%
```
Where:
% Yield is the percentage of the product obtained in the reaction compared to the theoretical yield.
Actual Yield: is the amount of the product obtained in the experiment or reaction.
Theoretical Yield: is the maximum amount of product that can be obtained based on the stoichiometry of the balanced chemical equation and limiting reactants.
Here's a step-by-step explanation of how to calculate percent yield:
1. Determine the balanced chemical equation for the reaction. This equation provides information about the stoichiometric ratios between reactants and products.
2. Calculate the theoretical yield. Use the stoichiometry of the balanced chemical equation to determine the maximum amount of product that can be formed. This calculation involves converting the given amount of one reactant (usually the limiting reactant) to the corresponding amount of product using mole ratios.
3. Perform the experiment or reaction and obtain the actual yield. The actual yield is the amount of product you actually collect or measure after carrying out the experiment. This value is determined experimentally.
4. Substitute the actual yield and theoretical yield values into the percent yield formula:
```
% Yield = (Actual Yield / Theoretical Yield) × 100%
```
5. Multiply the expression by 100 to convert the decimal fraction to a percentage.
The result obtained represents the percent yield of the reaction, which indicates the efficiency of the process in converting reactants to products. A percent yield of 100% means that the reaction proceeded with perfect efficiency, while values below 100% indicate that some product was lost or side reactions occurred.
