CHEMISTRY COMMUNITY

Sukhkiran Kaur 3I

Don't trust atoms, they make up everything.

Sukhkiran Kaur 3I

A neutron walks into a bar.
Before leaving, he asks the bartender, "How much?"
The bartender responds, "No charge."

Sukhkiran Kaur 3I

I recommend The 100 on Netflix, probably my favorite show of all-time.

Sukhkiran Kaur 3I

I find the Organic Chemistry Tutor videos on youtube pretty helpful.

Sukhkiran Kaur 3I

Doing good but winter quarter has been very stressful.

Sukhkiran Kaur 3I

I think it's usually in seconds but depending on the units given in the question you might need to convert it to minutes, hours, etc.

Sukhkiran Kaur 3I

Yes it can be changed by a change in temperature.

Sukhkiran Kaur 3I

It would be the one that is most likely to be oxidized.

Sukhkiran Kaur 3I

I think we consider them as the same for chem.

Sukhkiran Kaur 3I

yes it can change due to a change in temperature.

Sukhkiran Kaur 3I

I don't think both things can happen to one compound simultaneously.

Sukhkiran Kaur 3I

it's the amount of heat that's generates in a reverse rxn.

Sukhkiran Kaur 3I

I enjoyed the lewis structures part of 14a.

Sukhkiran Kaur 3I

Always use Kelvin!

Sukhkiran Kaur 3I

It would just be in kJ i believe.

Sukhkiran Kaur 3I

Could you maybe provide more details about the book problem you are talking about? Yes, a negative ΔG indicates that a reaction is spontaneous in the forward direction and nonspontaneous in the reverse direction, and similarly, a positive ΔG indicates that the reaction is nonspontaneous in the forw...

Sukhkiran Kaur 3I

It depends on the units in the problem.

Sukhkiran Kaur 3I

If Q<K, the reaction will favor the products. If Q>K, the reaction will favor the reactants.

Sukhkiran Kaur 3I

Yup! It would be standard (25 degrees C)

Sukhkiran Kaur 3I

They're both the same!

Sukhkiran Kaur 3I

This is really helpful!

Sukhkiran Kaur 3I

I was debating on whether or not i should take 14BL and 14C together, but I think I'll stick with 14C in the spring and 14BL in the summer

Sukhkiran Kaur 3I

I think Dr. Lavelle only does 14a and b :/

Sukhkiran Kaur 3I

The content does seem a lot harder this time around, but the more practice we can get in the better!

Sukhkiran Kaur 3I

I think i'll be taking 14c next quarter and bl over the summer

Sukhkiran Kaur 3I

Yup! But we might need to know the earlier concepts to solve the newer problems.

Sukhkiran Kaur 3I

I don't think q=w, but when deltaU=0, q=-w i believe.

Sukhkiran Kaur 3I

This is because an exothermic reaction involves a negative charge in enthalpy, so heat is being released. This is what occurs when water vapor condenses and turns to water droplets.

Sukhkiran Kaur 3I

I'm pretty sure it's just the standard, where 90-93 is an A- and above that an A or A+.

Sukhkiran Kaur 3I

I think the concepts were very fair and the content tested was expected, but the questions were a tad bit harder than anticipated.

Sukhkiran Kaur 3I

I think last quarter if u missed a week u could do double the posts next week and it would make it up in the final count.

Sukhkiran Kaur 3I

Silver walks up to Gold in a bar and says, "AU, get outta here!"

Sukhkiran Kaur 3I

K can refer to Kc or Kp. Kc is just more specific :)

Sukhkiran Kaur 3I

I write out the outlines and take notes on all the bullet points, do the textbook problems and check my answers, and then attend review sessions when possible!

Sukhkiran Kaur 3I

We would need to know whether the reaction is endothermic or exothermic.

Sukhkiran Kaur 3I

I'm sure we will have to use it to solve problems but there could be questions on the equation itself!

Sukhkiran Kaur 3I

What did the scientist say when he found 2 isotopes of helium?

HeHe

Sukhkiran Kaur 3I

It means the acid can only donate a single proton.

Sukhkiran Kaur 3I

P= pressure, V=volume, n=moles, R= Rydeberg's gas constant, T=temperature

Sukhkiran Kaur 3I

It would be inverse K, so 1/K.

Sukhkiran Kaur 3I

I think Kelvin would be most appropriate!

Sukhkiran Kaur 3I

I usually never have much time to watch my shows on Netflix, so when I do have downtime that's my favorite thing to do to relax.

Sukhkiran Kaur 3I

Take all your lame chemistry jokes and barium.

Sukhkiran Kaur 3I

Since we're starting outline 3 in week 3 there will probably be content from there tested as well.

Sukhkiran Kaur 3I

Usually yes, so it would be a good idea to use it unless you know for sure that you're working with a strong acid or base.

Sukhkiran Kaur 3I

Yes! Just used to differentiate between the two.

Sukhkiran Kaur 3I

Since this class is supposed to be structured similarly to 14a, I would assume the midterm will be MC. There's always review sessions with TA's and UA's before exams!

Sukhkiran Kaur 3I

I think it depends on what you are calculating for.

Sukhkiran Kaur 3I

I was confused by this too but i think it might just be a generalization of the K value?

Sukhkiran Kaur 3I

Yes M represents molarity while a mole is just a mole!

Sukhkiran Kaur 3I

I think it's dependent on the product/reactant quantity based on the formula.

Sukhkiran Kaur 3I

I think you can ask the UA's since they may have different policies!

Sukhkiran Kaur 3I

I find it easier to stay motivated if I allow myself to take a break when I want one. Also, I ask my family to make sure they remind me to go back to my work if I've been hanging around too much haha.

Sukhkiran Kaur 3I

I won't be going anywhere, but I will be spending a lot more time with my family and probably watching a lot of Christmas movies!

Sukhkiran Kaur 3I

I usually like to just read over my notes for a few days prior to beginning a class after a long break. I'll probably be going over my outline notes!

Sukhkiran Kaur 3I

I think the grade for the final exam is supposed to be up by or on Saturday, and our final grades should be up soon thereafter.

Sukhkiran Kaur 3I

They should be very close to 90 degrees but slightly less I believe.

Sukhkiran Kaur 3I

If there is more than one H in front, it'll be polyprotic.

Sukhkiran Kaur 3I

I think for memorization, we should know the naming of formulas, strong acids, strong bases, the light spectrum, periodic trends, and bond angles. There may be more though!

Sukhkiran Kaur 3I

I usually go through the lectures again, redo the homework problems, and then finish with the textbook problems.

Sukhkiran Kaur 3I

Mine is working normally so it should be fine now!

Sukhkiran Kaur 3I

My CCLE was acting up and this happened to me too, it went back to normal after a little while!

Sukhkiran Kaur 3I

I like to create a set schedule and follow it closely. Surprisingly, what keeps me most focused is taking breaks more often!

Sukhkiran Kaur 3I

I believe so, and I also think it'll be formatted just like the midterms.

Sukhkiran Kaur 3I

I definitely recommend "The 100" on Netflix. It's been my favorite for a while now.

Sukhkiran Kaur 3I

Happy (late) thanksgiving. My family doesn't celebrate in a huge way, but we like to dig up some old recipes each year and cook them together.

Sukhkiran Kaur 3I

I feel good, I think I'm just starting to slightly stress about the final already.

Sukhkiran Kaur 3I

Definitely my style of notes as well. I like to color code them now so they're easier to follow along with when studying.

Sukhkiran Kaur 3I

I assume that it will be like our midterms! Seems the most plausible format.

Sukhkiran Kaur 3I

I like to kind of catch up with what I may have missed in the past days/week when I was studying. For example, I listen to any new music, and watch the episodes of my fav shows.

Sukhkiran Kaur 3I

Cyclic structures are structures that, visually, do not appear linear. They're usually structured with carbons in the middle, and hydrogen atoms on the sides.

Sukhkiran Kaur 3I

I would just go over them with your TA!

Sukhkiran Kaur 3I

I would follow green

Sukhkiran Kaur 3I

I believe so yes.

Sukhkiran Kaur 3I

N has a +1 charge, the O's have a -1 each, and the C doesn't have any charge.

Sukhkiran Kaur 3I

I heard that it will be more questions, but shorter questions.

Sukhkiran Kaur 3I

Hydrogen bonds are not present in CH3CHO because none of the hydrogens are bonded to the oxygen.

Sukhkiran Kaur 3I

I think just the trends.

Sukhkiran Kaur 3I

Yeah the last 8 bullet points from outline 2 and all of outline 3 are on mt 2.

Sukhkiran Kaur 3I

Hi! So for this problem, you add up the bond lengths of each resonance structure (based on the lengths they give you) and divide by the amount of bonds, which is 4 for all of them. The answer is which structure's average bond length is closest to 144.

Sukhkiran Kaur 3I

I believe campus is normally closed on Veteran's Day, so it should be the same this year.

Sukhkiran Kaur 3I

I think our class is out of 500 pts, and it's probably the regular scale where 93% and higher is an A/A+, 90% and higher is an A-, and so on.

Sukhkiran Kaur 3I

It's hard for me to control any anxiety I get before a test, but if I start feeling anxious while taking a test, I just leave the problem(s) that are giving me trouble and do the ones I know. Usually it gives me more confidence to go back and solve the other ones, or at least look at them in a calm ...

Sukhkiran Kaur 3I

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

Sukhkiran Kaur 3I

What's a chemistry teachers favorite thing to teach about? Ammonia, because it's pretty basic stuff.

Sukhkiran Kaur 3I

Why can you never trust atoms? They make up everything!

Sukhkiran Kaur 3I

I was confused by this too, but a regular v usually means velocity while an italicized v means frequency.

Sukhkiran Kaur 3I

I'm sure it can be used in multiple places, but the main use I've seen for it so far is when solving problems related to Bohr's model of hydrogen regarding 2 energy levels.

Sukhkiran Kaur 3I

For us, yes, c will always equal the speed of light.

Sukhkiran Kaur 3I

I believe it's the particle model!

Sukhkiran Kaur 3I

I love The 100 on Netflix!

Sukhkiran Kaur 3I

I like to do something creative so I'll usually do any type of art or listen to music, etc.

Sukhkiran Kaur 3I

Hey, I struggle with the same thing but something that helped me while studying for the midterm was creating a playlist of songs that I love and putting in my headphones. I didn't need to touch my phone to shuffle through the playlist either because I only chose songs I would listen to. Also, I took...

Sukhkiran Kaur 3I

In terms of chem, I believe it would be ionic bonds.

Sukhkiran Kaur 3I

Yes that's right, since you would use the lowest value possible that would give you whole numbers for coefficients.

Sukhkiran Kaur 3I · Re: Homework due date I believe Sunday night at 11:59 pm

I believe Sunday night at 11:59 pm

Sukhkiran Kaur 3I

Hi! To solve this I first converted the wavelength from μm to m by multiplying 1.7 by 10^-6. Then, you can solve for v by using the equation v=h/mλ. Plug in the given mass, wavelength and Planck's constant, and then use the calculated velocity to find the KE using E=0.5mv^2.

Sukhkiran Kaur 3I

Avogadro's number is usually used when converting moles into atoms/molecules.

Sukhkiran Kaur 3I

I've tried to just eyeball it by going through the equation, but what works best for me is listing out how many of each atom are on both sides of the equation, and then doing the math and plugging the coefficients back in.

Sukhkiran Kaur 3I

In order to solve this, you should first convert the CuNO3 to moles using the molar mass. Then plug your value into the formula V=M/n to get the volume in L, and convert that into mL.

Search found 102 matches