Page 1 of 1

14.15 a 6th edition

Posted: Tue Feb 26, 2019 7:37 pm
by Helen Zhao 1F
For question 14.15a, how do you which equation is the cathode or anode?

Re: 14.15 a 6th edition

Posted: Wed Feb 27, 2019 11:24 am
by Shally Li 2C
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.