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100mL of a water sample contains 0.81g o...

`100mL` of a water sample contains `0.81g` of calcium bicarbonate and `0.73g` of magnesium bicarbonate. The hardness of this water sample expressed in terms of equivalents of `CaCO_(3)`:
(molar mass of calcium bicarbonate is `162g "mol"^(-1)` and magnesium bicarbonate is `146g "mol"^(-1)`)

A

100 ppm

B

1,000 ppm

C

5,000 ppm

D

10,000 ppm.

Text Solution

Verified by Experts

The correct Answer is:
D
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100 mL of a water sample contains 0.81g of calcium bicarbonate and 0.73g of magnesium bicarbonate. The hardness of this water sample expressed in terms of equivalent of CaCo_3 is 10^x ppm. What is numerical value of x? (molar mass of calcium bicarbonate is 162 gmol^(-1) and magnesium bicarbonate is 146g mol^(-1))

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