Question

The density of a solution containing 40% by mass of HCl is 0.0365 g/cc . Calculate the normality of the solution.

Answer 1

Answer:

13.15 m

Explanation:

The density of a solution containing 40% by mass of HCl is 0.0365 g/cc . Calculate the normality of the solution.

Answer 2

Answer:

Normality of the given solution of HCl is equal to 1N.

Explanation:

Given, the percentage of mass of HCl in the solution = 40%

It means that 40g of hydrochloric acid is present in 100g of solution.

Given , the density of the solution =0.0365g/ml

We know that density =mass/ volume

Volume of the solution = mass /density $=\frac{40}{0.0365}$

Volume of the solution = 1095.8ml = 1.095L

Normality of the solution $=\frac{No. \; of \; \; gram \; equivalents}{Volume\; (L)}$

Equivalent mass of HCl = molar mass/n-factor

We know that n-factor of HCl = 1

Equivalent mass of HCl = 36.5 eqmol⁻¹

Number of gram equivalents $=\frac{mass}{equivalent \; mass}=\frac{40}{36.5} =1.095geq$

Therefore, Normality of the solution $=\frac{1.095}{1.095}=1N$