Basic Stoichiometry

Front

What is the molar mass of H2O?

Back

18.02 g/mol

Front

What is the molar mass of table salt (NaCl)?

Back

58.44 g/mol

Front

What is the limiting reactant in the reaction of 4.0 moles of Mg with 5.0 moles of water?

Back

H2O

Front

What is the first step to solve a stoichiometry problem?

Back

Write a Balanced Equation

Front

In the equation 2 Al2O3 -> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen?

Back

4/3

Front

Define stoichiometry.

Back

The calculation of reactants and products in chemical reactions.

Front

What is a balanced equation?

Back

An equation where the number of atoms for each element is the same on both sides.

Front

What is the purpose of a mole ratio in stoichiometry?

Back

To relate the amounts of reactants and products in a chemical reaction.

Front

How do you calculate the molar mass of a compound?

Back

Add the atomic masses of all atoms in the compound.

Front

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

Back

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