Using the standerd half-cell potential listed, calculate the equilibrium constant for the reaction : `Co(s)+2H^(+)(aq)toCo^(2+)(aq)+H_(2)(g)" at 298 K"` `Co^(2+)(aq)+2e^(-)toCo(s) E^(@)=-0.277 V`
A
`2.3xx10^(9)`
B
`4.8xx10^(4)`
C
`4.8xx10^(7)`
D
`4.8xx10^(11)`
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The correct Answer is:
A
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