Question

How much of bleaching powder (70%) will be required to prepare 2 liters of 0.5% hypochlorite solution

Answer 1

Preparation of 0.5% chlorine solution:

For example, to make a 0.5% dilute solution of chlorine from 5% concentrated liquid household bleach = [5.0%/0.5%] -1 = 10-1 = 9 parts of water; hence add one part of concentrated bleach to nine parts of water.

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