The theoretical yield calculator is used to find the yield that should be obtained without any loss of reactants. It uses the percentage and actual yield in the theoretical yield formula to give the solution.
How to use the theoretical yield calculator?
Follow these steps to find the theoretical yield using this calculator:
- Enter the percentage yield.
- Enter the actual yield in the respective sections
- Click calculate.
Theoretical Yield Definition
It is the amount of product obtained when the whole of the limiting reactant used in a reaction is completely converted into the products without any loss of reactants. It is the product of a perfect chemical reaction.
Limiting reactant decides the amount of product obtained. It helps in increasing the yield of a reaction. The excess reactant is the reactant of which some quantity is left by the end of the reaction.
Theoretical yield formula
Most of the time we are asked to find the theoretical yield from actual and percentage yield. The theoretical yield equation is:
Actual yield is the amount of product obtained when the reaction is actually performed. Percentage yield is the ratio of actual yield to the theoretical yield multiplied by 100. It is 100 percent for a reaction whose actual and theoretical yield is the same.
How to calculate the theoretical yield?
An experiment is carried out in a laboratory. The actual yield of the experiments is 10 grams and the percentage yield is 90 percent. Calculate the theoretical yield.
Step 1: Identify the percentage and actual yield.
Actual yield = 10 grams
Percentage yield = 90 percent
Step 2: Write the formula and put the identified values.
Why is it called “theoretical” yield?
Theoretical means involving theory. It is the calculated product without performing any experiment. No laboratory reaction is a perfect chemical reaction.
It is not possible to convert all of the reactants completely into the required product without producing any by-products or preventing any side reaction to take place.
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