owwa online teachin X t signment/takeCovalentActivi do?locator assignment or ass

Question

owwa online teachin X t signment/takeCovalentActivi do?locator assignment or assignment take Review Topical Use the References to access important values if needed for this question. Use standard reduction potentials to calculate the equilibrium constant for the reaction: Hint: Carry at least 5 significant figures during intermediate calculations to avoid round offerror when taking the antilogarithm Equilibrium constant: AGO for this reaction would be than zero. greater less Submit Answer Retry Entire Group. 8 more group attempts remaining

Explanation / Answer

For the given reaction,

Ni2+(aq) + Co(s) <=> Co2+(aq) + Ni(s)

Eo = Ecathode - Eanode

     = -0.25 - (-0.28)

     = 0.03 V

dGo = -nFEo

        = -2 x 96500 x 0.03

        = -5.790 kJ

So,

dGo for the reaction is less than zero

Reaction is spontaneous as written

For the given reaction,

Co2+(aq) + Cu(s) <==> Co(s) + Cu2+(aq)

Eo = Ecathode - Eanode

     = -0.28 - 0.153

     = -0.433 V

dGo = -nFEo

        = -2 x 96500 x -0.433

        = 83.569 kJ

So,

dGo for the reaction is greater than zero

Reaction is not-spontaneous as written

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