CHEMISTRY COMMUNITY

Audrey Magsig 1E

I'm assuming that the reduction potentials were given on a sheet that was not included in the course reader. If you look up the reduction potentials involved in the question it works out! Here is the work: For this question, we are trying to build a galvanic cell that has the highest overall voltage...

Audrey Magsig 1E

Unfortunately for this question we are missing a table of reduction potentials. For this question, we are trying to build a galvanic cell that has the highest overall voltage. Here are the missing reduction potentials: Zn (2+) + 2e -> Zn (s) -.763V Fe (2+) + 2e -> Fe (s) -.44V Fe (3+) + e -> Fe (2+)...

Audrey Magsig 1E

For chair flipping, you flip the two triangular parts (the back of the chair switches to footrest and vice versa). In doing so, the axials flip to equatorials. If you type in chair conformation flip on google, there are some really good drawings!

Audrey Magsig 1E

Dr. Lavelle, I can say that I've thoroughly enjoyed being in your chemistry class. I've learned so much in the class even outside the course material through this class. I appreciate everything you've done to help us succeed and even though it has been very difficult, it has been a great experience....

Audrey Magsig 1E

In class, Dr. Lavelle mentioned that we would only be using the pre-equilibrium method!

Audrey Magsig 1E

When do we put H+, H2O, or OH- in the cell diagrams?

Thanks!

Audrey Magsig 1E

For the half reactions, you know that Au is going to be both oxidized and reduced. Break it up into the half reactions then: Au+(aq) ->Au (s) Au+(aq) ->Au 3+ (aq) then calculate the oxidation numbers: Au+: +1 Au(s): 0 Au 3+: +3 Balance the overall oxidation numbers on both sides of the reaction by a...

Audrey Magsig 1E

If the pressure isn't constant, the reaction is most likely reversible. Therefore, the internal energy of the system would be 0 as all energy would be conserved.

Audrey Magsig 1E

In the textbook, the irreversible process given as an example is a piston where external pressure increases but results in no movement in the piston. How does that work and how exactly is that an irreversible process?

Thanks!

Audrey Magsig 1E

Just so you know, even though we didn't have a workbook, there are still practice quizzes, midterms, and finals in the back of the course reader!

Audrey Magsig 1E

What is the name of 007's arctic cousin?

Polar bond

Audrey Magsig 1E

Bronsted-Lowrey deals with the transfer of a proton. Lewis acid and bases deal with the transfer of an electron pair. Note that a BL acid donates a proton whereas the Lewis acid accepts an electron pair

Audrey Magsig 1E

Also note that in chemical equilibrium, though equilibrium is constant, the reaction itself isn't static. There is just movement in the forward and reverse directions

Audrey Magsig 1E

I would check the formal charge. I checked formal charge in the practice quiz and got a different lewis structure. Since it doesn't have the answers with it, I can't be completely positive, but you may get different structures.

Audrey Magsig 1E

What exactly does it look like if an atom absorbs energy? Does it change into more kinetic energy of the atom?
(i.e. If an electron absorbs a photon from n=2, moves to n=5, then comes down to n=3, what does the energy not let off as light do to the atom?)

Thanks!

Audrey Magsig 1E

We talked about this in my discussion lecture today! Our TA said that we will be given the value for the conversion as well as values like the masses of protons, electrons, and neutrons.

Hope this helps!

Audrey Magsig 1E

Yes! I'd love to be a part of this! Do we want to start a groupme so we can plan meetings?

CHEMISTRY COMMUNITY

Search found 17 matches

Re: Calculating emf based on the reactants- 2014 Q3

Re: 2014 Winter Final

Re: Chair Flipping

Re: Saying Thank You to Dr. Lavelle

Re: steady state method

Cell Diagrams

Re: 14.13 part d

Re: question on U=q+w equation

Reversible/Irreversible processes In the book

Re: chem 14B workbook

Re: Post All Chemistry Jokes Here

Re: Difference between Bronsted and Lewis

Re: Chemical equilibrium

Re: Lewis Structures

Atomic absorption of energy

Re: HW chapter 1 problem 23 [ENDORSED]

Re: Rieber Hall 14A Study Group (Fall 2016)