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A sample of hard water is found to conta...

A sample of hard water is found to contain 40 mg of `Ca^(2+)` ions per litre. The amount of washing shoda `(Na_(2)CO_(3))` required to soften `5*0`L of the sample would be

A

1.06 g

B

5.3 g

C

53 mg

D

530 mg

Text Solution

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The correct Answer is:
D
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