In the determination of hardness of a sample of water, the following results
Channel: Doubtnut
Date: 2020-07-26

In the determination of hardness of a sample of water, the following results were obtained:  Volume of sample `H_(2)O=100  mL` volume of `N//50 Na_(2)CO_(3)` added to it `=20 mL`  volume of `N//50 H_(2)SO_(4)` used to back titrate the unreacted `NA_(2)CO_(3)=10 mL`  Calculate the hardness of water in `gL^(-1)`