CHEMISTRY COMMUNITY

Katie McCombs 3G

If we are asked to draw a ring flip on the final should we include the boat conformation transition, or should we simply draw the two chair conformations?

Katie McCombs 3G

Since it is in a ring structure, you are correct that the number will always be the same. Therefore it is the common practice of a ring with 2 substituents to give the first named substituent the lower number.

Katie McCombs 3G

For kinetics, what part of the book is on the quiz? Does "Reaction profiles, Arrhenius equation and calculating activation energies" mean that it is only 15.11 and 15.13, or will the rest of chapter 15 be on the quiz? Also, just to be clear, is Catalysis on there? Catalysis is included in...

Katie McCombs 3G

If a nucleophile is identified by its desire for protons, are all molecules with negative charges then nucleophiles.

Katie McCombs 3G

Nikhita_Jaaswal_2H wrote:Will Quiz 2 also cover materials from before the midterm (in between Quiz 1 and midterm)?

No quiz 2 will only cover kinetics

Katie McCombs 3G

Hey so I know that it will be hard to get spots in 14C like it was to get spots in 14B, and I was curious if Hardinger's policy for the waitlist was like Lavelle's. Lavelle told us when we were registering last quarter that if we made it on the waitlist we would get in the class, so I was curious if...

Katie McCombs 3G

When oxidation and reduction reactions are run through a singular electrode that has a voltage applied across it it will run only one of the reaction at a time. What determines whether it goes through oxidation or reduction. Obviously the solution being used needs to be capable of going up or down. ...

Katie McCombs 3G

So I'm just trying to clarify
Entropy (S) is the likelihood that a system will be in a certain state and degeneracy is the number of ways of achieving a given energy state. So for the certain state represented by S, W represents the number of ways of getting to the energy level of that formation?

Katie McCombs 3G

I'm looking at the chapter 8 problems and need a little more clarification on open, closed, and isolated systems. Could someone give me another example of each of these systems that we haven't used yet?

Katie McCombs 3G

In this case it is saying it is the best example of an isolated system. While we know that over time it does lose heat, it in theory (if it is a quality thermos) acts as an isolated system that does not exchange heat or matter.

Katie McCombs 3G

Is there anything we need to bring to the final in addition to a pen, a scientific calculator, and a photo ID?

Katie McCombs 3G

So I just want to clarify...
If I were given a problem asking me to calculate the pOH value of something and I was given the concentration of H30+ I would calculate the pH and then subtract the calculated value rom 14.00 to get the pOH, correct?

Katie McCombs 3G

An amine is classified as an organic compound derived from ammonia (NH3) by replacing one of the hydrogen with an organic compound. For example, in en and dien, the H is replaced by a bond to a carbon molecule.

Katie McCombs 3G

As far as MO theory goes there are not practice questions on the quiz that address it, but I thought I remembered it being included in things that would be on Quiz #3. I just wanted to see if anyone could give me a solid answer on whether MO would or would not be on Quiz #3.

Katie McCombs 3G

Can someone remind me of the formula for percent yield in the event of a limiting reactant?

Katie McCombs 3G

Does anyone know if we will be provided with a periodic table with electronegativity values for the quiz?

Katie McCombs 3G

No, the number of molecules of each element should not have any effect. The electronegativity difference is for a specific bond, therefore it should only consider two of the molecules.

Katie McCombs 3G

I assume we are expected to show work on our quiz responses, but I was curious if anyone had any idea to what degree we were expected to show work? For example, would I need to show how I came up with the molar mass for something, or can I simply just plug in the molar mass I calculated?

Katie McCombs 3G

Kaitlin_Ryan_ 3I wrote:Why is it necessary to plug in Planck's constant for part (a) of this problem?

Where would Planck's constant be plugged in to?

Plugging in Planck's constant is not necessary. All the other steps they listed are correct, but Planck's constant is irrelevant in this problem.

CHEMISTRY COMMUNITY

Search found 19 matches

Ring Flip: Final

Re: 2 Substituents on a Ring

Re: Quiz 3 Winter 2017

nucleophiles

Re: Quiz 2 Winter 2017

14C

Single electrode redox

entropy versus degenercy

Homework

Re: Isolated Systems [ENDORSED]

Bring to the final [ENDORSED]

Clarification of pH versus pOH [ENDORSED]

Re: Amine

Quiz #3 [ENDORSED]

Percent Yield

Electronegativity

Re: Electronegativity Difference

Showing Work [ENDORSED]

Re: Homework Problem 1.55