CHEMISTRY COMMUNITY

Ashley Curtis 2O

In the photo, which bond would be which on the carbon I labeled 3? How would I be able to tell that on a test?

Ashley Curtis 2O

Dear Dr. Lavelle, After a bad experience in AP Chem, I really thought I hated chemistry, and that I could never understand it. Then I had you as a professor for both chem 14A and 14B, and I must say when I first picked your class, I was scared that I would hate it. I didn't. Having you as my profess...

Ashley Curtis 2O

for #1, why do we need "iso" infant of propyl? wouldn't the 4- signify the branching? This is because "iso" identifies that there is 2 CH3's coming off of 1 CH (in all there is 3 carbons so prop). That is what CH(CH3)2 means so iso is used and it is connected to the 4th carbon a...

Ashley Curtis 2O

Ashley Curtis 2O

Ashley Curtis 2O

How would you be able to tell whether or not a reaction occurs at a constsnt temperature?

Ashley Curtis 2O

I am having trouble viewing the midterm review session. Is there any one else having this problem? It says the plugin is not supported when I try and watch it.

Ashley Curtis 2O

In the 2013 midterm Q6B, we are asked to determine when different quantities provide a criterion for assessing the spontaneity of a reaction. Why are we unable to tell whether the reaction is spontaneous or not using delta S but we can tell using delta S (total)?

Ashley Curtis 2O

Can anyone explain how they calculated the enthalpy of vaporization for question 4? deltaH sublimation = deltaH vaporization + deltaH fusion so by manipulating the equation to make deltaH vaporization = deltaH sublimation - deltaH fusion, you can then calculate the enthalpy of vaporization given th...

Ashley Curtis 2O

Ashley Curtis 2O

How would these random enrollment checks be conducted? Would they take up lecture time?

Ashley Curtis 2O

What does it mean if something has a bond order of 2.5? Is it a shorter double bond?

Ashley Curtis 2O

On question Q5A from the 2015 final, it asks what the charge of the ligand called "corrin-DMB" is, and hints that this can be found by taking the formal charges of each coordinated Nitrogen. In the answer, it says that the top left Nitrogen has a formal charge of -1. How do you get that fo...

Ashley Curtis 2O

If the Silver Surfer and Iron Man team up, they’d be alloys.

Ashley Curtis 2O

If you're not part of the solution, you're part of the precipitate

Ashley Curtis 2O

A better way to figure this out is by determining the bond order of each, rather than drawing out the lewis structures.

Ashley Curtis 2O

Using molecular orbital theory, list the following molecules from shortest bond length to the longest bond length.

B2^+, B2, B2^-, B2^2-

How would you tell which which would have to shortest or the longest length?

Ashley Curtis 2O

So would atoms in the 3rd period fill their d orbital or go to a 4p orbital?

Ashley Curtis 2O

Would we have to memorize the electronegativity values in order to tell which is an ionic or a covalent bond?

Ashley Curtis 2O

So if the equation does not use a +/-, then the uncertainty of speed is the value given, but if it does include a +/-, the uncertainty is the value doubled? I thought that the value always meant that it the uncertainty was that value above or below? For example, even if the question had not said +/-...

Ashley Curtis 2O

In the chem refreshers, each person who was holding a session was focusing on a specific topic. Will these sessions be the same way? Or would they just answer the questions each student brings to the learning sessions?

CHEMISTRY COMMUNITY

Search found 21 matches

Re: Equatorial and axial bonds

Re: Saying Thank You to Dr. Lavelle

Re: Quiz 3 Winter 2017

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Changes in both volume and temp [ENDORSED]

Re: Midterm Winter 2017

2013 Midterm Q6B [ENDORSED]

Re: Quiz 1 Preparation Answers

Re: Post All Chemistry Jokes Here

Re: Random Enrollment Checks

Re: bond order question [ENDORSED]

Charge of ligand

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Bond length, 2012 Midterm Question 6B

Bond length, 2012 Midterm Question 6B

Re: Octet Exception

Electronegativity and Bond Types

Re: Uncertainty

Re: Peer Facilitated Learning Sessions