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 chemical formula.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, identify the chemical formula, determine the atomic mass of each element from the periodic table, multiply by the number of atoms of each element in the formula, and sum all the values.

Front

What is the molar mass of BF3?

Back

68 g/mol.

Front

What is the molar mass of aluminum chloride (AlCl3)?

Back

133.341 g/mol.

Front

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

Back

74.10 g/mol.

Front

What is the molar mass of CuBr2?

Back

223.35 g/mol.

Front

What is the significance of molar mass in chemistry?

Back

Molar mass is crucial for converting between grams and moles, allowing chemists to quantify substances in reactions and calculations.

Front

What units are used for molar mass?

Back

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

Front

What is the molar mass of a single element?

Back

The molar mass of a single element is the atomic mass of that element expressed in g/mol, found on the periodic table.

Front

How does the molar mass affect stoichiometry in chemical reactions?

Back

Molar mass is used to convert between the mass of reactants/products and the number of moles, which is essential for stoichiometric calculations.