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 molecule, multiply by the atomic mass of each element, and sum the total.

Front

What is the molar mass of water (H₂O)?

Back

18 g/mol

Front

What is the molar mass of chlorine gas (Cl₂)?

Back

71.0 g/mol

Front

Calculate the molar mass of ammonium nitrite (NH₄NO₂).

Back

64 g/mol

Front

What is the molar mass of nitrogen gas (N₂)?

Back

28 g/mol

Front

Calculate the molar mass of aluminum hydroxide (Al(OH)₃).

Back

78.0 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.

Front

What is the molar mass of carbon dioxide (CO₂)?

Back

44 g/mol

Front

How does the molar mass of a diatomic molecule differ from a monatomic molecule?

Back

Diatomic molecules have a molar mass that is the sum of the atomic masses of two atoms, while monatomic molecules have a molar mass equal to the atomic mass of a single atom.