Search found 22 matches

by Nilla Sivakumar 2H
Sat Mar 18, 2017 7:52 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Change in Entropy Formula
Replies: 1
Views: 329

Re: Change in Entropy Formula

I think that one's on the formula sheet too :)
by Nilla Sivakumar 2H
Wed Mar 15, 2017 11:24 am
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Details and Review Sessions Winter 2017
Replies: 114
Views: 13596

Re: Final Exam Details and Review Sessions Winter 2017

Not particularly related to the final itself, but for future reference - will we still have access to Chemistry Community after this quarter ends?
by Nilla Sivakumar 2H
Wed Mar 15, 2017 11:21 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Final 2014 Q3
Replies: 3
Views: 425

Re: Final 2014 Q3

In something like this, the values would be given - either in the problem or in a table. I think.
by Nilla Sivakumar 2H
Thu Mar 09, 2017 11:12 am
Forum: *Alkanes
Topic: Common name & IUPAC naming
Replies: 3
Views: 428

Re: Common name & IUPAC naming

leilarishwain_3H wrote:So we will not be asked to name compounds with the common names on quiz 3? Only IUPAC names?


Yep! That's what Dr. Lavelle said in lecture :)
by Nilla Sivakumar 2H
Mon Feb 27, 2017 12:57 pm
Forum: *Cycloalkanes
Topic: Cyclohexene and double bonds
Replies: 2
Views: 285

Re: Cyclohexene and double bonds

It does matter, especially in terms of naming, because it could be 2 Methyl cyclohexene, or 3 Methyl cyclohexene, etc... These are very different molecules in terms of specificity and recognition by other molecules (like enzymes), and should be treated as such. The naming convention is that if ther...
by Nilla Sivakumar 2H
Thu Feb 23, 2017 2:37 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15310

Re: Quiz 2 Winter 2017

SarahTian3k wrote:Could someone please explain number 7? I keep getting 7.46x10-3 min-1



Are you positive you're using the correct order equation? For first-order reactions it's ln[A] = -kt + ln[A0]
by Nilla Sivakumar 2H
Wed Feb 22, 2017 12:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15310

Re: Quiz 2 Winter 2017

Is there a reason why number six's answer has three significant figures despite the given concentration 0.35M having two significant figures? Do we not bother with sig figs when ln is involved? I think the rule with logarithms and, by extension, natural logs, is to count out the number of sig figs ...
by Nilla Sivakumar 2H
Tue Feb 14, 2017 5:39 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: State Functions
Replies: 1
Views: 233

Re: State Functions

I was confused about this too, but then realized that E and E° are completely different things.
by Nilla Sivakumar 2H
Tue Feb 14, 2017 5:07 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Winter 2017
Replies: 87
Views: 14411

Re: Midterm Winter 2017

On Midterm 2013 Question 7, we seem to assume (after balancing the redox equation) that the number of moles we're dealing with is 10. Is that number taken off of the reduction half-equation, where we end up with 10 moles of bromide ions? Does this always apply (i.e. we always deal with the number of...
by Nilla Sivakumar 2H
Tue Feb 14, 2017 12:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Winter 2017
Replies: 87
Views: 14411

Re: Midterm Winter 2017

Nilla Sivakumar 2H wrote:For the Winter 2013 midterm, question 2B, I can't get the answer despite following along exactly. I keep getting 57 degrees instead of 64.

55000 = 275(4.814)(deltaT)



Never mind. I was using the wrong value for the heat capacity of water.
by Nilla Sivakumar 2H
Tue Feb 14, 2017 12:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Winter 2017
Replies: 87
Views: 14411

Re: Midterm Winter 2017

For the Winter 2013 midterm, question 2B, I can't get the answer despite following along exactly. I keep getting 57 degrees instead of 64.

55000 = 275(4.814)(deltaT)
by Nilla Sivakumar 2H
Sun Feb 12, 2017 9:59 am
Forum: Administrative Questions and Class Announcements
Topic: Midterm Winter 2017
Replies: 87
Views: 14411

Re: Midterm Winter 2017

Has it been decided whether or not we will have lecture on the day of the midterm?
by Nilla Sivakumar 2H
Thu Feb 09, 2017 1:10 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Delta G vs Delta G0
Replies: 5
Views: 1631

Re: Delta G vs Delta G0

I think you just plug it into the first one because you have the 0 subscript on all the givens, so you'd be solving for delta G0.
by Nilla Sivakumar 2H
Sun Feb 05, 2017 9:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Bruincast Audio Problem
Replies: 16
Views: 1600

Re: Bruincast Audio Problem

Does it work on Internet Explorer? Sometimes I only have access to a computer that uses Internet Explorer.
by Nilla Sivakumar 2H
Wed Feb 01, 2017 1:48 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Question about batteries
Replies: 1
Views: 211

Question about batteries

When batteries die, does that mean that the redox reaction has gone to completion?
by Nilla Sivakumar 2H
Wed Jan 25, 2017 1:13 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz Topics
Replies: 10
Views: 1100

Re: Quiz Topics

That's right!

But are there answers to the practice quizzes that are in the course reader?
by Nilla Sivakumar 2H
Mon Jan 23, 2017 2:26 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Delta H of Formation
Replies: 2
Views: 235

Re: Delta H of Formation

Is any element in its "pure" form ever more than a diatomic molecule? Would there ever be a reason to use O3 or other technically "pure" forms?
by Nilla Sivakumar 2H
Thu Jan 19, 2017 3:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Practice Quizzes
Replies: 3
Views: 377

Practice Quizzes

Are practice quizzes able to be used to replace a quiz as they were in Chem 14A?
by Nilla Sivakumar 2H
Thu Dec 01, 2016 11:59 pm
Forum: Student Social/Study Group
Topic: Indicators
Replies: 3
Views: 449

Indicators

Will there be questions on indicators on the final?
by Nilla Sivakumar 2H
Mon Sep 26, 2016 6:10 pm
Forum: Student Social/Study Group
Topic: Hedrick Summit Study Group Chem 14A
Replies: 29
Views: 2567

Re: Hedrick Summit Study Group Chem 14A

Any chance someone from Hitch could get in on this?
by Nilla Sivakumar 2H
Mon Sep 26, 2016 6:02 pm
Forum: Student Social/Study Group
Topic: Chemistry Jokes
Replies: 31
Views: 4378

Re: Chemistry Jokes

What do you call 6.022*10^23 guacas?
A guacamole!
It's Avocado's Number!

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