CHEMISTRY COMMUNITY

Claire Grover 3G

Yes I believe that is correct!

Claire Grover 3G

Yes, they are always in the p orbital.

Claire Grover 3G

I consider that to be the best way to do it, but I'm not sure.

Claire Grover 3G

I think it means that they completely dissociate.

Claire Grover 3G

I think it will be about 10 days from today.

Claire Grover 3G

I am pretty sure he doesn't curve any of the tests, and then depending on everyone's grades he'll probably curve everyone's total class points.

Claire Grover 3G

I don't think you can tell, but you should just know they are spin paired so one is positive and one is negative.

Claire Grover 3G

You should match it with the sig figs the problem gives you, or the lowest amount.

Claire Grover 3G

I think it depends on which direction the electron is going (either up or down).

Claire Grover 3G

I find it helpful to not try to cram too much right before the test, and instead do something relaxing after I've studied enough.

Claire Grover 3G

I think you just need to have 50 posts by the end of the quarter, but I'm not positive.

Claire Grover 3G

Why is EDTA hexadentate? I understand that it is because of lone pairs on 2 nitrogens and 4 oxygens, but why are only 4 of the oxygens included in this calculation? Thanks!

Claire Grover 3G

The formula is -log[H+] but I'm not sure if we need to know how to derive that.

Claire Grover 3G

I would say to watch Youtube videos if you're confused about general concepts and to do the UA problem set.

Claire Grover 3G

I think it's mostly new material but definitely some stuff from the past three tests as well.

Claire Grover 3G

I'm pretty sure the test bank does not carry his old tests unfortunately.

Claire Grover 3G

This class has been one of my hardest classes, especially because I don't have much chem experience at all.

Claire Grover 3G

My grade is also a zero but I think they should be inputted this coming week!

Claire Grover 3G

I did the same and I have the same concerns about the final. I'm thinking going to the review sessions will help!

Claire Grover 3G

The roman numeral corresponds with the oxidation state I believe.

Claire Grover 3G

I heard that there will be one and I think he's announcing the sessions soon!

Claire Grover 3G

I don't think we learned that but as someone said above whatever we don't talk about by Wednesday won't be on there.

Claire Grover 3G

It is an intramolecular force!

Claire Grover 3G

The molecule is nonpolar if all of its dipole moments cancel out! It can still have dipole moments and be nonpolar, but if they do not all cancel out then it is polar.

Claire Grover 3G

Yes, the lone pairs are included in hybridization!

Claire Grover 3G

It would still be polar because the dipole moments would all have to be the same in order for them to cancel out.

Claire Grover 3G

The molecule that is most polarizable (larger, more electrons) will have the largest London forces.

Claire Grover 3G

Only lone pairs on the central atom count for this!

Claire Grover 3G

My TA said that we have to know all of them, and how to predict which shapes various molecules will be.

Claire Grover 3G

I believe the test format will be basically the same as test 1, and the topics will be everything from 3F in the textbook up to what we learn in lecture tomorrow.

Claire Grover 3G

I think it's going to be everything starting from what wasn't covered on the midterm (3F in the textbook), up to whatever is covered tomorrow in lecture.

Claire Grover 3G

Yes, as stated above I think we do need to know bent structures.

Claire Grover 3G

I'm going to do all of the homework problems starting from section 3F up until what we learn in lecture tomorrow, and watch some videos online for extra help!

Claire Grover 3G

I believe it will only include post-midterm material!

Claire Grover 3G

Yes! Even though we get a point score for every test we won't find out the actual letter grades until the end of the quarter.

Claire Grover 3G

When energy is absorbed, the value of n increases because it represents energy level.

Claire Grover 3G

As the people above said, cations are larger than the neutral atoms because there are more electrons that are pushing against each other and expanding the radios. The atomic radius of neutral elements decreases across a period because there are also increasing amounts of protons pulling in the elect...

Claire Grover 3G

Fluorine is the most electronegative element, and therefore the bond with F would be more ionic.

Claire Grover 3G

I think it is also really important that the photoelectric effect displays the photon properties of light, rather than the wave properties of light.

Claire Grover 3G

He mentioned in lecture that the midterm will only cover material up to section 2D, due to class being cancelled this past Monday.

Claire Grover 3G

I believe electronegativity is a measure of how much an atom "wants" to gain an electron, whereas electron affinity is a measure of the amount of energy released when it does gain an electron.

Claire Grover 3G

If we are asked to draw a lewis structure for a compound and are given its name (such as ammonium chloride, potassium phosphide, or sodium hypochlorite in one of the practice problems) but are not given the formula of the compound, where do we start? I am still a bit confused on how to go from the n...

Claire Grover 3G

Yes, after going to some of the review sessions I believe we are just supposed to draw the most stable option in this case!

Claire Grover 3G

Does anyone have the notes from lecture last Friday (10/11)? I couldn't see well from where I was sitting and want to clarify a few things. Thanks so much! If you still need the notes from Friday I have them! Just let me know how to send them to you. Hi! I actually don't need the notes anymore but ...

Claire Grover 3G

Yes, I believe the people above are correct that he will have a review session once the test gets closer!

Claire Grover 3G

I believe we would be given this!

Claire Grover 3G

What do you do with a dead chemist?
Barium!

Claire Grover 3G

Yes, my TA told us that it was fine for this week.

Claire Grover 3G

I'm also not sure, but I am planning to go to his office hours so if I find out I will post it here!

Claire Grover 3G

Hi, last Wednesday I had a job interview and had to leave early so I did't get a chance to get the notes down. If anyone can please send them that would be AMAZING and I would greatly appreciate it :) **Also, if anyone needs any other notes post here!! HI! I have notes from that lecture! If you can...

Claire Grover 3G

Wait, are all these jokes too basic for you? Because I see no reaction.

Claire Grover 3G

For the first test I watched youtube videos and went to some of the Step Up sessions which were really helpful, but I think the most helpful thing I did was just doing all of the homework problems!

Claire Grover 3G

plopezcordon_4C wrote:Hi! I missed lecture on Wednesday (10/16) and was wondering if anyone is willing to see their notes :( I would really appreciate it!

I took notes on Wednesday! I can send you them - just let me know how :)

Claire Grover 3G

Does anyone have the notes from lecture last Friday (10/11)? I couldn't see well from where I was sitting and want to clarify a few things. Thanks so much!

Claire Grover 3G

I believe we only have to do Quantum World problems this upcoming week (Week 3).

Claire Grover 3G

Elizabeth Harty 3A wrote:Do we have to memorize equations for the test then?

No, they give the equations on a sheet of paper with the test.

Claire Grover 3G

My TA said to use as many decimals as possible throughout the problem and calculations, and then only do Sig Figs for the final answer.

Claire Grover 3G

∝ is the sign! Basically instead of writing E = hv, you could write E ∝ v, which means that E is proportional to v (by a factor of h).

Claire Grover 3G

Yes, I believe you will get credit as long as you show your work.

Claire Grover 3G

I went to 2 Step Up sessions for the first time today and they were very helpful! I would definitely recommend going. We went over some of the most challenging homework questions and in one of them a worksheet was provided.

Claire Grover 3G

Avogadro's number (6.022 x 10^23) represents the amount of something (for example atoms) contained in 1 mole of a substance. One way we have used it so far is when converting from number of atoms to moles, or vice versa. If given the amount of atoms, divide by Avogadro's number to find the amount of...

Claire Grover 3G

I'd tell you a chemistry joke, but all the good ones argon.

Claire Grover 3G

Yes, because Avogadro's Number represents the amount of atoms per mole. Therefore when given the amount of moles you divide by Avogadro's Number to get the amount of atoms.

Claire Grover 3G

I'm definitely interested!

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