Most community water supplies have 0.50 ppm of chlorine added for purification.

What mass of chlorine must be added to 134.0 L of water to achieve this level?

anwser grams

2 answers

0.50 ppm means 0.50 mg Cl2/L
So for 134.0 L you need .....?
How many grams of chlorine gas are needed to make 5.00×106 g of a solution that is 1.50 ppm chlorine by mass?