Cholrine gas can be produced by the reaction of `HCl (aq)` with `MnO_(2) (s)`. Only `MnCl_(2)` and `H_(2)O(l)` are the by products. What volume of `Cl_(2) (g) ("in litre")` of density `2.84 g//L` will be product from the reaction of `400 mL` of `0.1 M HCl(aq)` with an excess of `MnO_(2)` ?

Answer

`0.25L`

Explanation

` M " "+ " "Cl_(2) " "rarr " "MCl_(2)`
`MCl_(2)" "rarr" "M(OH)_(2)`
`2.375 gm`
`M(OH)_(2) " "+ " "2HCl " "rarr " "4MCl_(2)+2H_(2)O`
`25 m` mole `50 m` mole
`(2.375)/((x+71))=(25)/(1000)`
`implies x=24`