Flashcard 6.1: Formula 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 of a compound, identify the number of each type of atom in the molecule, multiply the atomic mass of each element by the number of atoms, and then sum these values.

Front

What is the molar mass of Cadmium (Cd)?

Back

112.41 g/mol.

Front

What is the molar mass of Sodium Chloride (NaCl)?

Back

58.44 g/mol.

Front

What is the molar mass of Dinitrogen Pentoxide (N2O5)?

Back

108.01 g/mol.

Front

What is the molar mass of Copper (II) Nitrate (Cu(NO3)2)?

Back

187.55 g/mol.

Front

What is the significance of rounding in molar mass calculations?

Back

Rounding is important to ensure that the final answer is presented in a clear and concise manner, typically to two decimal places.

Front

What unit is used to express molar mass?

Back

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

Front

What is the atomic mass of Sodium (Na)?

Back

22.99 g/mol.

Front

What is the atomic mass of Chlorine (Cl)?

Back

35.45 g/mol.