14.15 a 6th edition

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Helen Zhao 1F
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Joined: Fri Sep 28, 2018 12:20 am

14.15 a 6th edition

Postby Helen Zhao 1F » Tue Feb 26, 2019 7:37 pm

For question 14.15a, how do you which equation is the cathode or anode?

Shally Li 2C
Posts: 30
Joined: Fri Sep 28, 2018 12:22 am

Re: 14.15 a 6th edition

Postby Shally Li 2C » Wed Feb 27, 2019 11:24 am

The cathode is the half-rxn with a greater Eo. The greater the Eo, the greater its reducing power, so for 14.15a,
AgBr+e- ->Ag+Br- has a lower reducing power in comparison to Ag+ +e- ->Ag, so it is the anode.

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