Aflask contains 0.230 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask. express your answer numerically in molecules.

The number of moles of liquid bromine () present in the flask = 0.230 mol bromine.

1 mole of any substance has Avogadro number of formula units (atoms, molecules, or ions)

Avogadro's number is

The conversion factor between moles and number of formula units say molecules:

Converting the given moles of liquid bromine to molecules:

Therefore, 0.230 moles of liquid bromine contain .

- decrease the number of plants and animals living in the water.

that's what i got you can count the number of atoms