Percent Yield

Front

What is Percent Yield?

Back

Percent Yield is a measure of the efficiency of a reaction, calculated as (Actual Yield / Theoretical Yield) x 100%.

Front

How do you calculate Theoretical Yield?

Back

Theoretical Yield is calculated based on stoichiometry from the balanced chemical equation, using the amount of limiting reactant.

Front

What is Actual Yield?

Back

Actual Yield is the amount of product obtained from a chemical reaction, measured in the lab.

Front

What is the formula for calculating Percent Yield?

Back

Percent Yield = (Actual Yield / Theoretical Yield) x 100%.

Front

If the Theoretical Yield is 100 grams and the Actual Yield is 80 grams, what is the Percent Yield?

Back

Percent Yield = (80g / 100g) x 100% = 80%.

Front

What does a Percent Yield of over 100% indicate?

Back

A Percent Yield over 100% indicates that there may have been errors in measurement or that impurities were present in the product.

Front

What is Limiting Reagent?

Back

The Limiting Reagent is the reactant that is completely consumed first in a chemical reaction, limiting the amount of product formed.

Front

How can you determine the Actual Yield in a lab?

Back

The Actual Yield can be determined by measuring the mass of the product obtained after the reaction.

Front

What is the significance of Percent Yield in chemistry?

Back

Percent Yield helps chemists evaluate the efficiency of a reaction and identify potential issues in the reaction process.

Front

If 50 grams of a product was expected but only 45 grams was produced, what is the Percent Yield?

Back

Percent Yield = (45g / 50g) x 100% = 90%.