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2016 final question 3B

Posted: Thu Mar 16, 2017 11:15 pm
by Uma_Rajiyah_2A
How are we able to determine which one is the cathode and which one is the anode when we are just given the reduction values?
Thank you.

Re: 2016 final question 3B

Posted: Fri Mar 17, 2017 1:01 am
by Ryan Doyle 3E
The Cathode is always going to have the higher reduction half reaction value to make the total cell potential as high as possible because we calculate that through the equation Cathode potential - Anode Potential

Re: 2016 final question 3B

Posted: Fri Mar 17, 2017 1:04 am
by Sangita_Sub_3H
In addition, the more positive the value is for the standard reduction potential, the more likely the substance is going to be reduced.

Re: 2016 final question 3B

Posted: Fri Mar 17, 2017 10:07 am
by Madeline_Foo_3J
Ryan Doyle 3E wrote:The Cathode is always going to have the higher reduction half reaction value to make the total cell potential as high as possible because we calculate that through the equation Cathode potential - Anode Potential


when you say higher reduction half reaction do you mean more positive?

Re: 2016 final question 3B

Posted: Fri Mar 17, 2017 2:03 pm
by Ryan Doyle 3E
Yes