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An unknown mtal, M, and its salt, M(NO(3...

An unknown mtal, M, and its salt, `M(NO_(3)_(2)`are combined with a half-cell in which the following reaction occurs: `2Ag^(+) + M rightarrow 2Ag + M^(2+)`
`Ag^(+)(aq) + e(-) rightarrow Ag(s)` `[E_(red)^(@) = 0.80V]
If `E_(cell)^(@)` = 1.36V, what is `E_(red)^(@)` for `M^(2+)(aq) + 2e^(-) rightarrow M(s)`?

A

0.56V

B

0.24V

C

`-0.24V`

D

`-0.56V`

Text Solution

Verified by Experts

The correct Answer is:
D
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