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.

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