Mole-to-mole conversions

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

Front

What is the mole-to-mole conversion?

Back

Mole-to-mole conversion is the process of converting the amount of one substance in a chemical reaction to the amount of another substance using the coefficients from the balanced chemical equation.

Front

How do you determine the number of moles of a product formed in a reaction?

Back

Use the coefficients from the balanced chemical equation to set up a ratio between the reactants and products.

Front

In the reaction Fe₂O₃ + 3H₂ → 2Fe + 3H₂O, how many moles of Fe are produced from 6 moles of H₂?

Back

4 moles of Fe are produced.

Front

In the reaction S₈ + 12O₂ → 8SO₃, how many moles of O₂ are needed for 1 mole of S₈?

Back

12 moles of O₂ are needed.

Front

How many moles of H are in 2.00 moles of H₂O?

Back

There are 4 moles of H in 2.00 moles of H₂O.

Front

In the reaction 4Fe + 3O₂ → 2Fe₂O₃, how much rust is produced from 1 mole of Fe?

Back

0.5 moles of Fe₂O₃ are produced.

Front

In the reaction 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O, how many moles of CO₂ are produced from 3 moles of H₂O?

Back

2 moles of CO₂ are produced.

Front

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

Back

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

Front

How do you use a balanced equation to find the amount of reactant needed?

Back

Set up a ratio using the coefficients of the balanced equation to calculate the required amount of reactant.