The mass of oxalic acid crystals (H(2)C(...

The mass of oxalic acid crystals `(H_(2)C_(2)O_(4).2H_(2)O)` required to prepare 50 mL of a 0.2 N solution is:

(a)4.5 g

(b)6.3 g

(c )0.63 g

(d)0.45 g

Text Solution

Verified by Experts

The correct Answer is:

`H_(2)C_(2)O_(4). 2H_(2)O=2+24+64+36=126` and Equivalent wt.
`=[126/2]`
`0.2=(Wxx1000)/((126/2)xx50) :. W=0.63 g`

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