The bottle contains 30 kg of liquid chlorine. How much does this amount of chlorine take up under normal conditions?

In order to find the volume of 30 kg of chlorine under normal conditions, we must divide the mass of chlorine by its molar mass. Thus, we get the amount of chlorine substance. Then we multiply the amount of the substance by the molar volume and get the required volume.
1) Molar mass of chlorine: 35.5 * 2 = 71.
2) The amount of chlorine is: 30/71 = 0.4 mol.
3) The molar volume of gases under normal conditions is 22.4 liters.
4) The volume of chlorine is: 0.4 / 22.4 = 8.96 liters – the answer.