Stoichiometry Mole to Mole

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 is a mole in chemistry?

Back

A mole is a unit of measurement used to express the amount of a substance, defined as exactly 6.022 x 10²³ particles (atoms, molecules, ions, etc.).

Front

What is the mole ratio in a chemical reaction?

Back

The mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced chemical equation.

Front

How do you determine the total number of moles of a product from a given number of moles of a reactant?

Back

Use the coefficients from the balanced chemical equation to set up a proportion based on the mole ratio.

Front

In the reaction 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂, how many moles of water are needed to produce 2.5 moles of glucose?

Back

15 moles of water are needed.

Front

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

Back

4 moles of iron can be produced.

Front

What is the mole ratio between nitrogen (N₂) and ammonia (NH₃) in the reaction N₂ + 3H₂ → 2NH₃?

Back

The mole ratio is 1 mole N₂ to 2 moles NH₃.

Front

How many moles of hydrogen are required to react with 2 moles of nitrogen in the reaction N₂ + 3H₂ → 2NH₃?

Back

6 moles of hydrogen are required.

Front

In the reaction 2AgNO₃ + Cu → Cu(NO₃)₂ + 2Ag, what is the mole ratio of silver nitrate to copper(II) nitrate?

Back

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

Front

What is the significance of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the law of conservation of mass is obeyed, meaning the number of atoms of each element is the same on both sides of the equation.