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Calculate the number of coulombs require...

Calculate the number of coulombs required to deposit 5.4 g of Al when the electrode reaction is
`Al^(3+)+3e^(-) to Al`
(Given , atomic mass of Al =27 g `mol^(-1), F=96500 C mol^(-1)`)

Text Solution

Verified by Experts

1 mole Al (27 g) requires 3 mole electrons or 3F charge 27 g Al require `3 xx 96500` charge
6.75 g require `(3 xx 96500 xx 6.75)/27 = 72375` C
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