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If 2 A current passes for 5 h through a ...

If 2 A current passes for 5 h through a molten tin salt to deposit 22.2 g tin, what will be the oxidation number of tin in the salt? [At. Mass of tin = 118.7]

Text Solution

Verified by Experts

Quantity of electricity, `Q=(2xx5xx3600)=36000C.`
`"36000 C of electricity will liberate "=(22.2xx96500)/(36000)=59.5g" of tin."`
Thus the equivalent mass of tin = 59.5, and its valency `=(118.7)/(59.5)~~2.`
This implies the oxidation number of tin in the salt is `+2`.
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