Calculater the strength of 20V solution of hydrogen peroxide.

1.	Calculater the strength of 20V solution of hydrogen peroxide.
Answer» 0.03 0.06 0.3 0.6 Solution :20V solution of `H_(2)O_(2)` means that 1 L of this `H_(2)O_(2)` solution will GIVE to 10L of oxygen at STP `2H_(2_)O_(2(l)) rarr O_(2(g))+H_(2)O_((l))` `2 times 34""` 22.4 at STP `""`68gr On BASIS of above equation 22.4L of `O_(2)` is PRODUCED from 68g `H_(2)O_(2)` at STP 20L of `O_(2)` at STPis produced from `(68 times 20)/22.4g=60.71` GRAMS of `H_(2)O_(2)` Therefore strength of `H_(2)O_(2)` in 20V `H_(2)O_(2)` solution = 60.71g/L = 6% of `H_(2)O_(2)` solution

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