Search found 16 matches
- Sat Mar 18, 2017 4:47 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: 2015 Final 5A
- Replies: 4
- Views: 861
Re: 2015 Final 5A
And on part B...2 questions. Are we given the values for E or how did they come up with .40V and .80V? And how do you know that Cd is the oxidation reaction?
- Sat Mar 18, 2017 4:39 pm
- Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
- Topic: Winter 2013 Final 8B
- Replies: 3
- Views: 1577
Re: Winter 2013 Final 8B
How would you describe trans-1-chloro-3-ethylcyclohexane?
- Sat Mar 18, 2017 4:39 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: 2015 Final 5A
- Replies: 4
- Views: 861
Re: 2015 Final 5A
Where does (.0257 V) on the numerator come from?
- Mon Mar 13, 2017 3:19 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591355
Re: Post All Chemistry Jokes Here
My grade in the class
- Mon Jan 30, 2017 6:51 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: 9.57 (b) Help asap and I'll love you
- Replies: 5
- Views: 910
Re: 9.57 (b) Help asap and I'll love you
I love you
- Mon Jan 30, 2017 6:20 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: 9.57 (b) Help asap and I'll love you
- Replies: 5
- Views: 910
Re: 9.57 (b) Help asap and I'll love you
My bad...I edited it, I meant enthalpy
- Mon Jan 30, 2017 5:54 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: 9.57 (b) Help asap and I'll love you
- Replies: 5
- Views: 910
9.57 (b) Help asap and I'll love you
When calculating the standard reaction enthalpy of HF in (2F 2 (g) + 2H 2 O (l) -> 4HF (aq) + O 2 (g)) The solution has us basically doing some weird things with HF (what we want) in addition to H2O (reactant). When in the previous problem, all we did was take the number from the Appendix-2A. In oth...
- Sat Jan 28, 2017 6:03 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Q 8.53
- Replies: 1
- Views: 542
Q 8.53
Just a general question
On (b) its asks to "Calculate the internal energy change, deltaU, for the reaction of 1.00 mol CO(g)...
When finding "q" I thought the answer would be in kJ, but the solution proceeds to make it kJ/mol....why?
On (b) its asks to "Calculate the internal energy change, deltaU, for the reaction of 1.00 mol CO(g)...
When finding "q" I thought the answer would be in kJ, but the solution proceeds to make it kJ/mol....why?
- Sat Dec 03, 2016 7:56 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591355
Re: Post All Chemistry Jokes Here
You know the song Broccoli by D.R.A.M....."All she wanna do is smoke de Broglie".....I'm sorry
- Sat Dec 03, 2016 7:28 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3591355
Re: Post All Chemistry Jokes Here
Long Live Lavelle
- Sat Dec 03, 2016 7:24 pm
- Forum: Naming
- Topic: Symbol Order for Compounds [ENDORSED]
- Replies: 1
- Views: 579
Symbol Order for Compounds [ENDORSED]
When writing out the symbols for compounds such as triamminetrichloronickel(IV) sulfate...the answer is written as [NiCl_3(NH_3)_3]_2 SO_4
So why is the chlorine in front of ammine???
So why is the chlorine in front of ammine???
- Sat Dec 03, 2016 7:14 pm
- Forum: Lewis Structures
- Topic: 2013 Final Question 3D
- Replies: 2
- Views: 864
Re: 2013 Final Question 3D
Here: https://www.google.com/search?q=lewis+structure+of+urea&rlz=1C1TIGY_enUS708US709&espv=2&biw=1396&bih=690&tbm=isch&imgil=DQHrOxbaHuvvCM%253A%253B8FheaeVk-FqyDM%253Bhttps%25253A%25252F%25252Fopentextbc.ca%25252Fchemistry%25252Fchapter%25252F8-2-hybrid-atomic-orbitals%2525...
- Sat Dec 03, 2016 7:13 pm
- Forum: Lewis Structures
- Topic: 2013 Final Question 3D
- Replies: 2
- Views: 864
Re: 2013 Final Question 3D
There are four lone pairs of electrons. 2 on the oxygen, and 1 for each Nitrogen. You can google "Lewis Structure of urea" and get a clear picture.
- Sat Dec 03, 2016 7:03 pm
- Forum: General Science Questions
- Topic: Radicals
- Replies: 1
- Views: 597
Re: Radicals
Not sure about VESPR, but radicals in terms of Lewis structures means there is an electron that is not paired.
- Thu Nov 03, 2016 1:37 pm
- Forum: Lewis Structures
- Topic: Best Method for Drawing Lewis Structures
- Replies: 1
- Views: 522
Re: Best Method for Drawing Lewis Structures
What I have found over the few weeks drawing Lewis structures, I start noticing patterns on how each element "prefers" to bond. The best way to be sure (which can be tedious at times) is to write out the formal charges. My typical steps: Count electrons->bond everything->fill in common pat...
- Wed Nov 02, 2016 1:20 am
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Which Diagram to draw in a bond with both elements Z<8 and Z>8 [ENDORSED]
- Replies: 8
- Views: 1724
Re: Which Diagram to draw in a bond with both elements Z<8 and Z>8 [ENDORSED]
I'm not quite sure if molecular diagrams will be tested on this midterm...someone tell me if they are but I don't think so.