56V,500ml`H_2O_2` solution is kept in an open contaier due to which some `H_2O_2` is decomposed and evolves 8gm `O_2`. Simultaneously some `H_2O` also vapouries. Due to all these changes ,final volume is reduced by `20%`. Find final volume strength of `H_2O_2(aq)`.
Assume 1 mole of an ideal gas occupies 22.4 L at STP)
A. 56 V
B. 44.8 V
C. 11.2 V
D. 33.6 V
