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

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Q. How many grams of a dibasic acid (mol. wt. $=200$ ) should be present in $100 \,ml$ of its aqueous solution to give decinormal strength?

Some Basic Concepts of Chemistry

Solution:

For dibasic acid $E=\frac{M}{2}=\frac{200}{2}=100$

$N=\frac{W \times 1000}{E \times V(\text { in } ml )}$

$\frac{1}{10}=\frac{W \times 1000}{100 \times 100}=W=1 \,g$