6M.1 7th Ed


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Layal Suboh 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

6M.1 7th Ed

Postby Layal Suboh 1I » Tue Feb 26, 2019 2:54 pm

Hello,

I'm having trouble with this problem. It says:

A student was given a standard Cu(s)|Cu2+(aq) half-cell and another half-cell containing an unknown metal M in 1.00 M M(NO3)2 (aq) and formed the cell M(s)|M+(aq)||Cu2+(aq)|Cu(s). The cell potential was found to be -0.689 V. What is the value of E?

How do we know which is the anode and which is the cathode?

thanks

Lynsea_Southwick_2K
Posts: 55
Joined: Fri Sep 28, 2018 12:25 am

Re: 6M.1 7th Ed

Postby Lynsea_Southwick_2K » Tue Feb 26, 2019 4:04 pm

(left) Anode: oxidation half rxn
(right) Cathode: reduction half rxn

Oxidation: Loss of e-
Reduction: Gain of e-


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