Question

`20 "litre"` of air containing `CO_(2)` at `STP` passed through `100 mL` of `0.12 N` solution of `Ca(OH)_(2)`. The filtrate obtained after the reaction required `50 mL` of a solution of `HCl` of specific gravity `1.25 g mL^(-1)` containing `0.35%` by weight of acid. Find the amount of `CO_(2)` present in the volume of air as well as the percentage by volume of `CO_(2)` in air.

Answer 1

Correct Answer - `0.132g, 0.0672 "litre", 0.336%`;