Question

How many g of a dibasic acid (Mol. wt. = 200)should be present in 100 ml of its aqueous solution to give decinormal strength

• A. 1 g
• B. 2 g
• C. 10 g
• D. 20 g

Answer 1

The correct option is A 1 g

For Dibasic acid $E=\frac{M}{2}=\frac{200}{2}=100$
$N=\frac{W\times 1000}{E\times V\left(inml\right)}$
$\frac{1}{10}=\frac{W\times 1000}{100\times 100}=W=1gm$