1.

An electric current is passed through two electrolytic cells connected in series one containing aqueous `AgNO_(3)` solution while the other containing aqueous `H_(2)SO_(4)`. The volume of oxygen that would be liberated at `25^(@)C` and 750 mm pressure from `H_(2)SO_(4)` if 1 mole of `Ag^(+)` ions are deposited from `AgNO_(3)` solution.A. 6.2 LB. 7.2 LC. 8.0 LD. 10.0 L

Answer» Correct Answer - A
(a) Since Ag is monovalent ,
`1" mol Ag" -=1" Eq Ag"-=1" Eq "O_(2)`
Weight of `O_(2)` liberated =8 g.
`T=298" K", P=(750)/(760) atm`
`PV=nRT=(W)/(M)RT`
`VO_(2)=(WRT)/(MP)`
`=((8g)xx(0.0821" L atm " K^(-1) mol^(-1))xx(298K))/((32" g mol"^(-1))xx(0.987" atm"))=6.2" L"`


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