Concentrated aqueous sulphuric acid is `98% H_(2)SO_(4)` by mass and has a density of `1.80 g mL^(-1)`. Volume of acid required to make one litre of `0.1 MH_(2)SO_(4)` solution is:

Options

A. `11.10 mL`
B. `16.65 mL`
C. `22.20 mL`
D. `5.55 mL`

Answer

D

Explanation

Normality `=("Weight percentage "xx" density"xx10)/("Equivalent weight")`
`=(98xx1.8xx10)/(49)=36 N`
`N_(2)=2xx0.1 N=0.2 N`
`N_(1)V_(1)=N_(2)V_(2)`
`36xxV=0.2xx1000`
`V=(0.2xx1000)/(36)`
= 5.55 mL (dissociation of acid)