Mole to Mole Stoichiometry

Front

What is the mole ratio of carbon dioxide to water in the reaction 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O?

Back

The mole ratio of CO₂ to H₂O is 4:6 or 2:3.

Front

How many moles of H₂O are produced when 12 moles of NH₃ are completely consumed in the reaction 4NH₃ + 5O₂ → 4NO + 6H₂O?

Back

18 moles of H₂O are produced.

Front

In the reaction 2Na + S → Na₂S, how many moles of S react with 4.0 moles of Na?

Back

2 moles of S react.

Front

How many moles of silver are produced when 10 moles of silver nitrate react in the reaction 2AgNO₃ + Cu → Cu(NO₃)₂ + 2Ag?

Back

10 moles of silver are produced.

Front

How many moles of pure copper are needed to produce 8 moles of pure silver in the reaction 2AgNO₃ + Cu → Cu(NO₃)₂ + 2Ag?

Back

4 moles of pure copper are needed.

Front

What is stoichiometry?

Back

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

Front

Define a mole in chemistry.

Back

A mole is a unit that measures the amount of substance, defined as 6.022 x 10²³ particles (atoms, molecules, etc.).

Front

What is the purpose of a balanced chemical equation?

Back

A balanced chemical equation shows the conservation of mass, indicating that the number of atoms of each element is the same on both sides of the equation.

Front

What does the coefficient in a balanced equation represent?

Back

The coefficient represents the number of moles of a substance involved in the reaction.

Front

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

Back

Use the mole ratio from the balanced equation to relate the moles of reactants to the moles of products.