Question

How many grams of a dibasic acid (Mol. Wt. =200) should be present in 100 ml of its aqueous solution to give decinormal strength
A. 1g
B. 2g
C. 10g
D. 20g

Answer 1

Correct Answer - A
Equivalent of acid `= (200)/(2) = 100g`
For preparing `100 mL` of `1N` solution `=100g`
For preparing `100 mL` of `0.1N` solution
`=100 xx (100)/(1000) xx 0.1 = 1g`