U6 Day 6 Warm up - Percent Yield & Limiting Reactants

Front

What is the formula for percent yield?

Back

Front

The theoretical yield of a reaction is 237 grams, but the reaction actually yields 26 less grams than expected. What is the percent yield?

Back

89.0%

Front

Hydrogen and oxygen molecules combine to form water molecules. Given the molecules provided, which of the following is true about the products of this reaction?

Back

4 H_2O molecules are produced, O_2 is the limiting reactant.

Front

The ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect setting.

Back

Theoretical

Front

Which of the following do you get through measuring its mass? (No calculations)

Back

Actual yield

Front

What is a limiting reactant?

Back

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

Front

Define theoretical yield.

Back

The maximum amount of product that can be produced from a given amount of reactants, based on stoichiometric calculations.

Front

What is actual yield?

Back

The amount of product actually obtained from a chemical reaction.

Front

How do you calculate percent yield?

Back

Front

What does a percent yield of over 100% indicate?

Back

It indicates that there was an error in measurement or calculation, as it is not physically possible to produce more product than the theoretical yield.