One litre of a sample of hard water contains 1.62g of calcium hydrogen carbonte. What amount of lime is needed to remove hardness of `10^(6)` litres of such a sample

10^5 g of a sample of water contained 16.2 g of Ca(HCO_3)_2 its hardness is

One litre of a sample of hard water contains 5.55 mg of CaCl_(2) and 4.75 mg of MgCl_(2) . The total hardness of ppm of CaCO_(3) is

One litre of a sample of hard water contains 1 mg of CaCl_(2) and 1 mg of MgCl_(2) . Find the total hardness of water in terms of parts of CaCO_(3) per 10^(6) parts of water by mass.

100Kg of a sample of water contained 6 g of MgSO_4 . The degree of hardness

One litre of a sample of hard water contains 5.55 mg of CaCl_(1) and 4.75 mg of MgCl_(2) . The total harness of ppm of CaCO_(3) is

10 kg of a sample of water contains 6 g of magnesium sulphate. Calculate its degree of hardness.

A sample of hard water contains 122 p p m of HCO_(3)^(ɵ) ions,. What is the minimum weight of CaO required to remove ions completely from 1 kg of such water sample?

A sample of hard water contains 122 p p m of HCO_(3)^(ɵ) ions,. What is the minimum weight of CaO required to remove ions completely from 1 kg of such water sample?