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2Ga(s) + 6H^(+)(aq) rightarrow 2Ga^(3+)(...

`2Ga(s) + 6H^(+)(aq) rightarrow 2Ga^(3+)(aq) + 3H_(2)(g)` ,
The potential of the cell for the reaction given is 0.54V. If the concentrations of the ions are 1.0M and the pressure of `H_(2)(g)` is 1atm, what is `E^(@)` for the half-reaction
`Ga^(3+)(aq) + 3e^(-) rightarrow Ga(s)`

A

`-0.54V`

B

`-0.27V`

C

0.27 V

D

0.54 V

Text Solution

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The correct Answer is:
A
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