`25 mL` of a solution of barium hydroxide on titration with `0.1 "molar"` solution of hydrochloric acid give a titre value of `35 mL`. The molarity of barium hydroxide is:

Options

A. `0.28`
B. `0.35`
C. `0.07`
D. `0.14`

Answer

C

Explanation

Meq.of `Ba(OH)_(2)="Meq.of" HCl`
`Nxx25=0.1xx35`
`therefore N_(Ba(OH)_(2))=(3.5)/(25)`
`therefore M_(Ba(OH)_(2))=(3.5)/(25)xx(1)/(2)=0.07`