`H_(2)O_(2)` solution of 45.4 V at STP . In a hospital of Kota, patient under artifical respiration take s200ml `O_(2)` per min at 1 atm and 273 K and a cylinder last for 2.8 hours . After that it cannot be used for respiration though it still contains `H_(2)O_(2)` .
[Assume volume of solution and rate of decomposition remain constant]
Initial moles of `H_(2)O_(2)` in a cylinder are:
A. 12
B. 16
C. 8
D. 24
