1.

Mass of O_(2) that can be obtained from 500 ml 15 V H_(2)O_(2) aqueous solution is__________

Answer»

`6.42 gm`
`2.675 gm`
`2.14 gm`
`10.7 gm`

SOLUTION :`11.2 M = 15`
`M = (15)/(11.2)`
Moles of `H_(2)O_(2) = (15)/(11.2) xx (1)/(2)` mole
`H_(2)O_(2) rarr H_(2)O + (1)/(2) O_(2)`
Moles of `O_(2)` FORMED `= (15)/(11.2) xx (1)/(4)`
MASS of `O_(2) = (15)/(11.2) xx (1)/(4) xx 32`
`= 10.7 gm`


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