Calculate the amount of [Ca(OH)₂] required to remove the hardness of water

Calculate the amount of [Ca(OH)₂] required to remove the hardness of water from 60,000 litres containing 16.2 g of Ca(HCO₃)₂ per 100 litre

(a) 1.11 kg
(b) 2.22 kg
(c) 3.33 kg
(d) 4.44 kg

4.44 kg

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JK2001

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