Unit 07 Stoichiometry Part II Recovery Flashcardizz 1st Period

Front

What is percent yield in a chemical reaction?

Back

Percent yield is the ratio of the actual yield to the theoretical yield, multiplied by 100. It indicates the efficiency of a reaction.

Front

How do you calculate percent yield?

Back

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

Front

What is a limiting reactant?

Back

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

Front

How can you identify the limiting reactant in a reaction?

Back

To identify the limiting reactant, compare the mole ratio of the reactants used in the reaction to the mole ratio in the balanced equation.

Front

What is theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, based on stoichiometric calculations.

Front

What is the balanced equation for the reaction of sulfur dioxide and phosphorus pentachloride?

Back

SO2 + PCl5 → SOCl2 + POCl3

Front

If 16.2g of SO2 reacts with 13.7g of PCl5, how do you find the theoretical yield of SOCl2?

Back

Convert grams to moles, use the balanced equation to find the mole ratio, and then convert back to grams.

Front

What is the role of coefficients in a balanced chemical equation?

Back

Coefficients indicate the number of moles of each substance involved in the reaction, which is essential for stoichiometric calculations.

Front

What happens if one reactant is in excess?

Back

If one reactant is in excess, it will not be completely consumed, and the limiting reactant will determine the amount of product formed.

Front

What is the significance of the limiting reactant in a chemical reaction?

Back

The limiting reactant determines the maximum amount of product that can be formed and affects the percent yield.