## Where to find Ecell values

claudia_1h
Posts: 111
Joined: Fri Aug 09, 2019 12:16 am

### Where to find Ecell values

Can someone point me to where to find a table of reduction potentials for common half reactions? Either in the book or on Lavelle's website...can't seem to find it

Betania Hernandez 2E
Posts: 107
Joined: Fri Aug 02, 2019 12:15 am

### Re: Where to find Ecell values

The Ecell values can be found in the back of the textbook in Appendix 2B.

Kevin Antony 2B
Posts: 99
Joined: Sat Sep 07, 2019 12:16 am

### Re: Where to find Ecell values

Its in the book at Appendix 2B. (After Chapter 11 but before the answer key)

Jainam Shah 4I
Posts: 130
Joined: Fri Aug 30, 2019 12:16 am

### Re: Where to find Ecell values

Appendix 2B has them and remember they are all given as reduction potentials. Keep that in mind while calculating the standard potentials

Viviana Velasquez
Posts: 97
Joined: Sat Jul 20, 2019 12:15 am

### Re: Where to find Ecell values

Appendix 2B or you can look it up online

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

### Re: Where to find Ecell values

Does anyone know when you would flip the sign in a half relation? I know that if you flip the equation the sign flips, but then do you not do this when calculating E(cell)? like if they give you the E value in the problem and the equation has to be flipped do you flip the sign?

Leila_4G
Posts: 114
Joined: Sat Sep 14, 2019 12:17 am

### Re: Where to find Ecell values

My TA talks about the "e-chem series" and how if the value is higher then it has more oxidizing/reducing power, but what is the e-chem series?

Juana Abana 1G
Posts: 100
Joined: Wed Sep 18, 2019 12:15 am

### Re: Where to find Ecell values

They are located in Appendix 2B in the textbook.

gabbymaraziti
Posts: 111
Joined: Wed Sep 18, 2019 12:19 am

### Re: Where to find Ecell values

AKatukota wrote:Does anyone know when you would flip the sign in a half relation? I know that if you flip the equation the sign flips, but then do you not do this when calculating E(cell)? like if they give you the E value in the problem and the equation has to be flipped do you flip the sign?

The Ecell values given in Appendix 2B are for the reduction half reaction. You would flip the sign of the Ecell value and the equation if you were looking for the oxidation half reaction, and vice versa.

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

### Re: Where to find Ecell values

gabbymaraziti wrote:
AKatukota wrote:Does anyone know when you would flip the sign in a half relation? I know that if you flip the equation the sign flips, but then do you not do this when calculating E(cell)? like if they give you the E value in the problem and the equation has to be flipped do you flip the sign?

The Ecell values given in Appendix 2B are for the reduction half reaction. You would flip the sign of the Ecell value and the equation if you were looking for the oxidation half reaction, and vice versa.

In addition to this, what helps me is I just subtract the oxidation half reaction from the reduction half reaction, basically just flipping the sign anyways. Just be careful not to change the sign twice as he mentioned in class

vanessas0123
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

### Re: Where to find Ecell values

Appendix 2B or just google it!

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

### Re: Where to find Ecell values

It can be found in Appendix 2B at the back of the book!

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

### Re: Where to find Ecell values

Appendix 2B in textbook

Nuoya Jiang
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

### Re: Where to find Ecell values

Appendix 2B. I googled one table for Ecell values but calculations based on those were not the same as the solution manual.

Anushka Chauhan2B
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

### Re: Where to find Ecell values

Appendix 2B

san_2F
Posts: 118
Joined: Sat Jul 20, 2019 12:15 am

### Re: Where to find Ecell values

Appendix 2B but make sure that to manipulate the values when the reaction is flipped.