Calculate the strength of 30 volume solution of hydrogen peroxide.

Explanation

30 volume solution of `H_(2)O_(2)` means that 1L of this `H_(2)O_(2)` solution will give 30 L of oxygen at STP.
The decomposition of `H_(2)O_(2)` takes place as follows.
`underset(2xx34g=18g)(2H_(2)O_(2)to 2H_(2)O+underset(22.7L" at STP")(O_(2))`
from the equation
22.7 L of `O_(2)` of `O_(2)` at STP is obtained from `H_(2)O_(2)=68g`
`therefore30L` of `O_(2)` at STP is obtained from `H_(2)O_(2)=(68)/(22.7)xx30`
Therefore, strength of 30 volume `H_(2)O_(2)` solution `=89.86g//L`