Stoichiometry Chemistry test

In most chemical reactions the amount of product obtained is

. less than the theoretical yield.

In the reaction A + B --> C + D, if the quantity of B is insufficient to react with all of A,

B is the limiting reactant

Which of the following is NOT true about "yield"?

The actual yield may be different from the theoretical yield because insufficient limiting reagent was used.

Which of the following is NOT true about limiting and excess reagents?

The reactant that has the smallest given mass is the limiting reagent

What is the measured amount of a product obtained from a chemical reaction

actual yield

To determine the limiting reactant in a chemical reaction, one must know the

available mount of each reactant

Which of the following is NOT a reason why actual yield is less than theoretical yield?

conservation of mass

The substance not completely used up in a chemical reaction is known as the

excess reactant

Actual yield must be determined by

experiments

When the limiting reactant in a chemical reaction is completely used, the

it stops

The actual yield of a chemical reaction is

less than the theoretical yield.

After calculating the amount of reactant B required to completely react with A, then comparing that amount with the amount of B available, one can determine the

limiting reactant

The substance that restricts the participation of other reactants in a chemical reaction is known as the

limiting reactant

A chemical reaction involving substances A and B stops when B is completely used. B is the

limiting reactant.

A chemist interested in the efficiency of a chemical reaction would calculate the

percent yield

What is the ratio of the actual yield to the theoretical yield, multiplied by 100%?

percentage yield

If the percent yield is equal to 100%, then

the actual yield is equal to the theoretical yield

To determine the limiting reactant in a chemical reaction involving known masses of A and B, one could first calculate

the number of moles of B and the number of moles of A available

What is the maximum possible amount of product obtained in a chemical reaction?

theoretical yield