Week 9 Worksheet (2E,I,K)

Moderators: Chem_Mod, Chem_Admin

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Fri Mar 08, 2019 2:44 pm

Hi all,

Attached please find the discussion notes and the answer key for worksheet9.

Try to do additional problems on last page and I will post the answer for for these two problems by Sunday.

Have a great weekend!

Best,
Joyce
Attachments
Worksheet 9_key.pdf
(2.56 MiB) Downloaded 150 times
Week 9 Notes.pdf
(3.08 MiB) Downloaded 112 times

Kobe_Wright
Posts: 83
Joined: Fri Sep 28, 2018 12:16 am

Re: Week 9 Worksheet (2E,I,K)

Postby Kobe_Wright » Fri Mar 08, 2019 3:27 pm

Thank you! Very helpful

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Fri Mar 08, 2019 3:28 pm

Typo on worksheet last page:

Column name should be : [A]_0; [B]_0; [C]_0.

- Joyce

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Sun Mar 10, 2019 1:34 pm

Additional problems answer key attached.

-Joyce
Attachments
Additional problem answer.pdf
(2.61 MiB) Downloaded 128 times

Elle_Mendelson_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Week 9 Worksheet (2E,I,K)

Postby Elle_Mendelson_2K » Tue Mar 12, 2019 12:45 pm

Where can we find week tens worksheet?

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Wed Mar 13, 2019 8:32 am

Elle_Mendelson_2K wrote:Where can we find week tens worksheet?


Hi Elle,

I have email the worksheet 10 and will upload full version with answer key after discussion.

Elle_Mendelson_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Week 9 Worksheet (2E,I,K)

Postby Elle_Mendelson_2K » Wed Mar 13, 2019 3:18 pm

Thank you!

Christine Chen 1H
Posts: 64
Joined: Fri Sep 28, 2018 12:18 am

Re: Week 9 Worksheet (2E,I,K)

Postby Christine Chen 1H » Wed Mar 13, 2019 4:10 pm

For problem 2 part a, shouldn't c = 0 and not 1?

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Wed Mar 13, 2019 7:56 pm

Christine Chen 1H wrote:For problem 2 part a, shouldn't c = 0 and not 1?

You are right it's a typo.

c = 0.

Angela Cong 3C
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: Week 9 Worksheet (2E,I,K)

Postby Angela Cong 3C » Thu Mar 14, 2019 10:58 am

Thank you so much!

Elle_Mendelson_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Week 9 Worksheet (2E,I,K)

Postby Elle_Mendelson_2K » Sat Mar 16, 2019 9:58 am

Hello! When I plug in the same formulas and do all the same steps, I get a couple numbers off. For example, for 1d I got -75740.725. Is this a rounding issue or is something off in my settings. I don't think I rounded anything until the end.
Further for 1c I got .169V instead of .157V

Elle_Mendelson_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Week 9 Worksheet (2E,I,K)

Postby Elle_Mendelson_2K » Sat Mar 16, 2019 10:02 am

I think this may be due to you using log instead of ln? On the equations sheet for the nearest equation they use ln. Which should we use?

Chem_Mod
Posts: 17706
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 404 times

Re: Week 9 Worksheet (2E,I,K)

Postby Chem_Mod » Sat Mar 16, 2019 11:20 pm

Elle_Mendelson_2K wrote:I think this may be due to you using log instead of ln? On the equations sheet for the nearest equation they use ln. Which should we use?


Hi Elle,

You can use both. Please be aware that the difference is 0.0592 for log and 0.0257 for ln. If you plug in the number into two equations (in attachment), you will get same answer.

Hope this helps.
Attachments
1552803294836.jpg
Nernst Equation

Maayan Epstein 14B
Posts: 39
Joined: Fri Sep 28, 2018 12:20 am

Re: Week 9 Worksheet (2E,I,K)

Postby Maayan Epstein 14B » Sun Mar 17, 2019 10:15 pm

Thank you for all your help this quarter, Joyce!


Return to “Method of Initial Rates (To Determine n and k)”

Who is online

Users browsing this forum: No registered users and 1 guest