Question

What is the overall cell potential for this redox reaction?

Answer 1

I hope this problem I will provide might help you solve your problem:

What is the overall cell potential for this redox reaction?

Ca2+ + 2Li = Ca + 2Li+ 
Ca2+ + 2e- = Ca -2.87 V 
Li = Li+ + e- -3.05 V 

ANSWER:

 Ecell = Eox + Ered 

The oxidation half-cell reaction is Li = Li+ + e- .... 
and the given voltage is IN FACT the voltage for the reduction reaction of lithium. Since we have an oxidation reaction, we must reverse the sign of the given voltage to get the voltage of the oxidation reaction. Hence, Eox = -Ered = -( -3.05 V) = + 3.05 V 

The reduction half-cell reaction is Ca2+ + 2e- = Ca .... Ered = -2.87 V 

So, Ecell = 3.05 V + (-2.87 V) = 0.18 V



I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!