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A sample of water contained 30 PPM of Mg...

A sample of water contained 30 PPM of `MgSO_(4)` its hardness is x+20PPM What is 'x'

Text Solution

Verified by Experts

The correct Answer is:
5
30 ppm of `MgSO_4 to 30 gm " in " 10^6` gm of `H_2O`
Hardness in term of
`CaCO_3 to 30 xx 100/120 =2 5`ppm
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