How are these values used to determine percent?
actual yield is quantity of a product found to be formed in a chemical reaction and theoretical yield is the amount of product predicted
theoretical yield is larger because in experiments reactions might not always go to completion and systematic errors
%yield = (actual/theoretical)*100 = ??
To determine the percent yield of a chemical reaction, you need to compare the actual yield with the theoretical yield. The theoretical yield is the amount of product that is predicted based on stoichiometry and other factors. It is usually larger than the actual yield.
To calculate the percent yield, you can use the following formula:
Percent Yield = (Actual Yield / Theoretical Yield) x 100
Here's how you can use these values to determine the percent yield:
1. Start by conducting the chemical reaction in a controlled environment and carefully measure the actual yield. This involves collecting and weighing the product formed.
2. Determine the theoretical yield by using stoichiometry and other factors. This involves calculating the amount of product that would be produced assuming the reaction goes to completion, without any errors.
3. Divide the actual yield by the theoretical yield and multiply by 100 to get the percent yield.
For example, if the actual yield was found to be 7 grams and the theoretical yield calculated to be 9 grams, the percent yield would be:
Percent Yield = (7 grams / 9 grams) x 100 = 77.8%
The percent yield indicates the efficiency of the reaction, with higher values indicating a more efficient reaction. It is often used to assess the success of a chemical synthesis or production process.