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The weight of (COOH)(2). 2H(2)O needed t...

The weight of `(COOH)_(2). 2H_(2)O` needed to prepare `500 cm^(3)` of 0.1 M solution is :

A

12.6 g

B

9.0 g

C

4.5 g

D

6.3 g

Text Solution

Verified by Experts

The correct Answer is:
D
Let weight of `(COOH)_(2).2H_(2)O` needed to prepare `500 cm^(3)` of 0.1 M solution is W.
`0.1=((W)/(126)xx1000)/(500)`
or `W=0.1xx63=6.3g`.
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