Question

2g of base x requires 100ml of 0.4n acid for complete neutralisation .The eqhivalent weight of base is

Answer 1

Answer:

100 × 0.4/2

= 40/2

= 20 ...... ....

Answer 2

Answer:

weight of base x = 2g

so, equivalents of base = given weight of base/equivalent weight.

= 2g/equivalent weight of base.

Normality of 100ml solution of acid = 0.4N

so, equivalents of acid = normality × volume of solution in litre

= 0.4 × 100/1000 = 0.04

To completely neutralisation,

equivalents of acid = equivalents of base.

or, 0.04 = 2g/equivalent weight of base

or, equivalent weight of base = 2/0.04 = 50g.