Question

A flask contains 0.480 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask. express your answer numerically in molecules.

Answer 1

The number of Bromine molecules can be obtained using the Avogadros number.

Avogadros number = 6.022 x 10^23 molecules / mole

Bromine molecules = 0.480 mole * (6.022 x 10^23 molecules / mole)

Bromine molecules = 2.89 x 10^23 molecules