Question

to dissolve 0.9g metal 100 ml of 1n hcl is used. What is the equivalent weight of metal

Answer 1

    

1 N HCl

solution means; 36.5 g of

HCl

are dissolved in 1000 mL. (

∵

Equivalent wt. of

HCl=36.5

)

∴

100 mL of

HCl

solution contains

HCl

Similarly 100 mL of

HCl

solution contains Now,

Eq. wt. of metal

Weight of metal in solution

=

Eq. wt. of acid

Weight of acid in solution

               

E

0.9

=

36.5

3.65

               

E=9

Answer 2

Answer:The equivalent weight of metal is 9 gram per equivalent.

Explanation:

$Normality=\frac{\text{mass of the substance}}{\text{Equivalent mass of the substance}\times \text{Volume of the solution in liter}}$

The equivalent weight of metal:

Mass of the metal = 0.9 g

Equivalent mass of the metal = ? g

Volume of the solution: 100 ml= 0.1L (1000mL=1L)

$1N=\frac{0.9 g}{\text{Equivalent mass of the metal}\times \text{0.1}}$

${\text{Equivalent mass of the metal}}=9$ gram per equivalent

The equivalent weight of metal is 9 gram per equivalent.