Mole Ratios and Conversions

Front

What is a mole ratio?

Back

A mole ratio is a ratio that shows the relative amounts of moles of reactants and products in a balanced chemical equation.

Front

How do you find mole ratios in a chemical reaction?

Back

Mole ratios are found as coefficients in the balanced chemical equation.

Front

What is the mole ratio of AgNO3 to Cu(NO3)2 in the reaction 2AgNO3 + Cu -> Cu(NO3)2 + 2Ag?

Back

The mole ratio of AgNO3 to Cu(NO3)2 is 2:1.

Front

What is the mole ratio of Mg to Fe in the reaction 3 Mg + 1 Fe2O3 -> 3 MgO + 2 Fe?

Back

The mole ratio of Mg to Fe is 3:2.

Front

How do you balance the equation Al2O3 -> Al + O2?

Back

The balanced equation is 2Al2O3 -> 4Al + 3O2.

Front

In the reaction 2 C2H6 + 7 O2 -> 4 CO2 + 6 H2O, how many moles of C2H6 are needed to produce 13.5 moles of H2O?

Back

4.5 moles of C2H6 are needed.

Front

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

Back

Coefficients indicate the number of moles of each substance involved in the reaction.

Front

What is the mole ratio of products to reactants?

Back

The mole ratio of products to reactants is determined by the coefficients in the balanced equation.

Front

Define stoichiometry.

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced equation.

Front

What is the mole ratio of O2 to CO2 in the reaction 2 C2H6 + 7 O2 -> 4 CO2 + 6 H2O?

Back

The mole ratio of O2 to CO2 is 7:4.