## Question

The formula weight of an acid is 82.0 in a titration 100 cm^{3} of a solution of this acid containing 39.0 g of the acid per litre were completelyneutralised by 95.0 cm^{3} of aqueous NaOH containing 40 .0 g of NaOHper litre. What is the basicity of the acid?

### Solution

2

Suppose the equivalent weight of the acid = E

Eq. wt. of NaOH = 40

Applying N_{1} V_{1} = N_{2} V_{2}

(Acid) (NaOH)

or E = 41 . 0

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