Theoretical yield

Definition

Theoretical yield is the maximum amount of product that can be produced in a chemical reaction based on the stoichiometric calculations from the balanced equation. It assumes perfect conditions with no losses or side reactions.

5 Must Know Facts For Your Next Test

1. Theoretical yield is calculated using stoichiometry from the balanced chemical equation.
2. It represents an ideal situation where 100% of the limiting reagent is converted to product.
3. The actual yield obtained in an experiment is often less than the theoretical yield due to practical limitations.
4. Theoretical yield is commonly expressed in grams or moles.
5. Percent yield can be calculated using the formula: $\text{Percent Yield} = \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \times 100$.

Review Questions

• How do you determine the theoretical yield of a product in a chemical reaction?
• Why might the actual yield be less than the theoretical yield in a real-world experiment?
• What information do you need to calculate percent yield?

Related terms

Limiting Reagent:

The substance that is completely consumed first in a chemical reaction, thus limiting the amount of product formed.

Actual Yield:

The measured amount of product obtained from a chemical reaction.

Percent Yield:

$\text{Percent Yield} = \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \times 100$, which indicates the efficiency of a reaction.