A 12 gm sample of `CH_4` and `C_(2)H_(4)` on complete oxidation with ` O_2` forms 35.2gm`CO_2` . Find the mean molar mass of original sample:

16 gm O_2 , 28 gm N_2 , 44 gm CO_2 at V, T. Find P

2 gm of a mixture of CO and CO_(2) on reaction with excess of I_(2)O_(5) produced 2.54 gm of I_(2) . What will be the mass % of CO_(2) in the original mixture ?

4.4 gms of a hydrocarbon on complete combustion produced 13.2 gms of CO_(2) and 7.2 gms of H_(2)O . How many moles of oxygen is consumed per mole of hydrocarbon in the combustion?

4.4 gms of a hydrocarbon on complete combustion produced 13.2 gms of CO_(2) and 7.2 gms of H_(2)O . How many moles of oxygen is consumed per mole of hydrocarbon in the combustion?

A 50 gm sample which may contain either (H_(2)S)_(4) or SO_(3) or any combination of the two is mixed with 9 gm of water. The maximum oleum labelling possible of the sample formed can be: