Question
The srength of H2O2 is expressed in several ways like molarity, normality, %(w/V), volume strength, etc. The strength of 10 V means 1 volume of H2O2 on decomposition gives 10 volumes of oxygen at 1 atm and 273 K or 1 litre of H2O2 gives 10 litre of O2 at 1 atm and 273 K.
The decomposition of H2O2 is shown as under:
H2O2(aq)→H2O(l)+12O2(g)
H2O2 can acts as oxidising as well as reducing agent, as oxidisng agent H2O2 converted into H2O and as reducing agent H2O2 converted into O2, both cases n-factor is 2.
∴,Normality of H2O2Solution=2×Molarity of H2O2 Solution
What is the percentage strength of 11.2 V H2O2?