Question

3. Calculac the total hardness or 1000 litre of a sample oi wawi
the following impuritics 16.2 mg/1 of Ca(HCO3)2, 11.1 mg/l of CaCl2, 60
mg/1 of MgSO4 and 19 mg/1 of MgCl2.​

Answer 1

Answer:

The amount of hardness is expressed in milligrams per litre (mg/L) or grains per gallon (gpg) as calcium carbonate. Hardness is calculated from the equation Hardness = 2.497 (Ca) + 4.118 (Mg).

Explanation:

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