Stoichiometry Assessment

Front

What is stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.

Front

What do the coefficients in a chemical equation represent?

Back

The coefficients represent the relative numbers of moles of reactants and products involved in the reaction.

Front

What is a mole ratio?

Back

A mole ratio is a conversion factor derived from the coefficients of a balanced chemical equation, used to relate the amounts of reactants and products.

Front

What is the significance of significant figures in stoichiometry calculations?

Back

The number of significant figures in the answer of a stoichiometry calculation is based on the number of significant figures in the given data.

Front

What is a gram to mole conversion factor?

Back

A gram to mole conversion factor is used to convert the mass of a substance (in grams) to the amount of substance (in moles) using its molar mass.

Front

What is a mole to gram conversion factor?

Back

A mole to gram conversion factor is used to convert the amount of substance (in moles) to mass (in grams) using its molar mass.

Front

When is it easier to solve stoichiometric problems?

Back

It is easier to solve stoichiometric problems when both the reactant and product are given in moles.

Front

What must a gram to gram stoichiometry problem include?

Back

A gram to gram stoichiometry problem must include both a gram to mole conversion factor and a mole to gram conversion factor.

Front

What is the first step in solving a stoichiometry problem?

Back

The first step is to write a balanced chemical equation for the reaction.

Front

How do you determine the limiting reactant in a reaction?

Back

The limiting reactant is determined by comparing the mole ratios of the reactants used in the reaction to the mole ratios in the balanced equation.