Social & Preventive Medicine General ddb9fe18

1 meq/ L of hardness of water is equivalent to presence of:

25 mg calcium bicarbonate in 1 litre of water

50 mg calcium bicarbonate in 1 litre of water

100 mg calcium bicarbonate in 1 litre of water

150 mg calcium bicarbonate in 1 litre of water

High-Yield Explanation

Hardness of water is expressed in meq/L. 1 meq/L of hardness producing ion is equal to 5o mg of calcium bicarbonate in 1 litre of water. Ref: Park 21st edition page: 671.

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1 meq/ L of hardness of water is equivalent to presence of:

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