Molar mass

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a molecule.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, identify the number of each type of atom in the compound, multiply by the atomic mass of each element, and sum the total.

Front

What is the molar mass of Calcium Hydroxide, Ca(OH)₂?

Back

74.1 g/mole.

Front

What is the molar mass of Ammonium Carbonate, (NH₄)₂CO₃?

Back

96.0 g/mole.

Front

What is the molar mass of Sodium Bromide, NaBr?

Back

102.9 g/mole.

Front

What is the mass of one mole of Helium?

Back

4 g.

Front

What is the relationship between molar mass and atomic mass?

Back

The molar mass of an element is numerically equal to its atomic mass, expressed in grams per mole.

Front

What units are used to express molar mass?

Back

Molar mass is expressed in grams per mole (g/mol).

Front

Why is molar mass important in chemistry?

Back

Molar mass is crucial for converting between grams and moles, allowing chemists to calculate reactants and products in chemical reactions.

Front

What is the molar mass of water (H₂O)?

Back

18.02 g/mole.