1.

X g of silveris plated out on a servingtray byelectrolysis of asolutioncontaining silver in +1 oxidationstatefor a periodof 8.0 h at current of 8.46 A whatis the areaof the trayif the thickness of silver plating is 0.0025 cm ? [ Given denisty of silver =10.5 g cm^(-3)]

Answer»

`10.7 xx10^(4) cm^(2)`
`1.02 xx10^(4) cm^(2)`
`4.1 xx10^(23) cmsd^(2)`
`10.0xx10^(4) cm^(2)`

Solution :`(W_("Ag"))/("Equivalent WEIGHT")_("ag")=("it")/(96500)`
`w_(Ag)=(107.8 xx8.46 xx8xx60xx60)/(96500)`
`w_(Ag)=272 .18 g`
volumeof Ag`=(272.18)/(10.5) =25.92 g`
`THEREFORE` surface area `=(25.92)/(0.00254)=1.02 xx10^(4) cm^(2)`


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