The hardness of a water sample (in terms of equivalents of CaCO3 conta – McqOptions

MCQOPTIONS

1.	The hardness of a water sample (in terms of equivalents of CaCO3 containing 10-3 MCaSO4 is (Molar mass of CaSO4 = 136 g mol-1)
A.	100 ppm
B.	10 ppm
C.	50 ppm
D.	90 ppm
Answer» B. 10 ppm

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