2016 final question 3B

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Uma_Rajiyah_2A
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Joined: Wed Sep 21, 2016 2:56 pm

2016 final question 3B

Postby Uma_Rajiyah_2A » Thu Mar 16, 2017 11:15 pm

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.

Ryan Doyle 3E
Posts: 10
Joined: Fri Jul 15, 2016 3:00 am

Re: 2016 final question 3B

Postby Ryan Doyle 3E » Fri Mar 17, 2017 1:01 am

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

Sangita_Sub_3H
Posts: 23
Joined: Sat Jul 09, 2016 3:00 am

Re: 2016 final question 3B

Postby Sangita_Sub_3H » Fri Mar 17, 2017 1:04 am

In addition, the more positive the value is for the standard reduction potential, the more likely the substance is going to be reduced.

Madeline_Foo_3J
Posts: 26
Joined: Wed Sep 21, 2016 3:00 pm

Re: 2016 final question 3B

Postby Madeline_Foo_3J » Fri Mar 17, 2017 10:07 am

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?

Ryan Doyle 3E
Posts: 10
Joined: Fri Jul 15, 2016 3:00 am

Re: 2016 final question 3B

Postby Ryan Doyle 3E » Fri Mar 17, 2017 2:03 pm

Yes


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