Finals
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Search found 12 matches
- Sun Dec 04, 2016 6:41 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3678594
- Sun Nov 27, 2016 3:17 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3678594
Re: Post All Chemistry Jokes Here
attachment
- Sat Nov 19, 2016 12:33 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3678594
- Fri Nov 11, 2016 12:47 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3678594
- Sat Nov 05, 2016 11:36 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3678594
Re: Post All Chemistry Jokes Here
Sorry ladies, I only date carbon.
- Wed Oct 26, 2016 8:58 pm
- Forum: Lewis Structures
- Topic: Quiz 2 Prep. Question 6 [ENDORSED]
- Replies: 7
- Views: 1805
Re: Quiz 2 Prep. Question 6 [ENDORSED]
So the question is asking me the resonance for (NH2)COCH3 I've managed to find one structure for it. But I can't seem to find the other, unless I change the formal charge of the compound. Is that what I'm supposed to do? From what I got, in one of the structures theres a double bond between the N a...
- Wed Oct 26, 2016 7:01 pm
- Forum: Sigma & Pi Bonds
- Topic: Skipping Problems on Quiz 2 Prep?
- Replies: 2
- Views: 666
Re: Skipping Problems on Quiz 2 Prep?
I'm pretty sure that you can skip the past quizzes (Fall 2014 and Fall 2015) entirely for the Quiz 2 prep because they seem to cover only chapter 4 material. The actual hand-in quiz that will be scored, along with Quiz 2 itself, only covers topics from chapters 2-3, so don't skip any questions on t...
- Sun Oct 23, 2016 7:24 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Relation between Formal Charge and Oxidation Number
- Replies: 2
- Views: 819
Re: Relation between Formal Charge and Oxidation Number
So... we will not have to determine the oxidation number? Rather, it will be given as in Na+Cl-. Where Na has an oxidation number of +1 and Cl has an oxidation number of -1?
- Sun Oct 16, 2016 9:12 pm
- Forum: Properties of Light
- Topic: QUIZ 1 [ENDORSED]
- Replies: 7
- Views: 1698
Re: QUIZ 1 [ENDORSED]
Sarah_Kremer_4H wrote:I asked Dr. Lavelle and he said that as we come across different compounds, that we should learn those. As they are introduced we should become responsible for them.
Thank you for sharing this, I have been wondering about that for a while.
- Sat Oct 08, 2016 11:02 pm
- Forum: Einstein Equation
- Topic: 1.27 [ENDORSED]
- Replies: 1
- Views: 1173
Re: 1.27 [ENDORSED]
Hi, We did a similar problem in my discussion section (3k) last week. Divide the number of Joules (64) by (4.73 x 10 (-19) J x photon (-1) ). This cancels out Joules. Then, multiply that by (1 mol)/(Avogadro's number of protons). Your answer will be in moles of protons. Here is the a...
- Sat Oct 08, 2016 10:37 pm
- Forum: Einstein Equation
- Topic: What is the eV unit? [ENDORSED]
- Replies: 6
- Views: 5037
Re: What is the eV unit? [ENDORSED]
Also,
1 eV= 1.602x10(-19)Joules
1 J (Joule) =(1kg x m2 x s(-2))
Hope this helps!
1 eV= 1.602x10(-19)Joules
1 J (Joule) =(1kg x m2 x s(-2))
Hope this helps!
- Wed Sep 28, 2016 11:00 pm
- Forum: Einstein Equation
- Topic: HW 1.9 - Sig Figs
- Replies: 1
- Views: 577
HW 1.9 - Sig Figs
Significant figures rounding issue for HW 1.9, calculating E (energy of photon), for a dental x-ray. My final answer is E = 7.9512x 10^{-17} J Rounded to 2 sig figs, my answer is E=8.0x 10^{-17} J According to the solutions manual, the answer is E=7.9x 10^{-17} J I feel that, when rounding to 2 sig ...