CHEMISTRY COMMUNITY

Ashley Wagner 2A

Kind of stressed and tired. I’m really looking toward finals being over so I can take some time to relax and sleep.

Ashley Wagner 2A

I’m most looking forward to being on campus and meeting new people.

Ashley Wagner 2A

I think UCLA is trying to aim for mostly all in-person classes. Maybe big lecture halls may be online due to safety reasons.

Ashley Wagner 2A

I’m hoping to dorm if it is safe. If not, I might get an apartment with my friend.

Ashley Wagner 2A

I didn’t think the final was that bad and went better than I expected. However I don’t want to jinx it either

Ashley Wagner 2A

I’m thinking of taking some summer classes and just relaxing at home.

Ashley Wagner 2A

Thank you for the past two quarters Dr.Lavelle! I’ve had fun learning chemistry in you class.

Ashley Wagner 2A

I don’t think he teaches 14C

Ashley Wagner 2A

I think the order is irrelevant as long as the anode is on the left and the cathode is on the right. Also the solid electrode should be on the outside for each side of the cell diagram. Other than that, I don’t think the order matters that much.

Ashley Wagner 2A

For the overall reaction to zero-order, all of the reactants would be zero-order and the rate law would only depend on k.

Ashley Wagner 2A

Intermediates are not a part of the overall reaction since they are formed in one step and consumed in the next causing them to cancel each other out.

Ashley Wagner 2A

An adiabatic system is where no heat enter or leaves the system. Therefore the temperature stays constant and t initial = t final.

Ashley Wagner 2A

K and Kc are the same thing. However Kc is used for molar concentrations.

Ashley Wagner 2A

Delta U is equal to 0 because the temperature of the system stays constant.

Ashley Wagner 2A

The oxidation numbers are found by solving for them using O and H. So I think knowing only O and H is ok.

Ashley Wagner 2A

Heat is dependent on its pathway which makes it not a state function. In contrast, enthalpy is independent of its path, which makes it a state function. Furthermore, enthalpy, unlike heat, only relies on the initial and final value.

Ashley Wagner 2A

Since catalyst are a part of kinetics, they only affect the rate of the reaction so the equilibrium shouldn’t be affected.

Ashley Wagner 2A

I’ve been feeling the same way too! Learning online has proved to be harder than I originally thought. I’ve been keeping my options open and possibly looking into other career paths.

Ashley Wagner 2A

Enzymes are catalyst because they lower the activation energy in the reaction they are a part of. Furthermore, they accelerate the reaction rate.

Ashley Wagner 2A

The best method I found is doing the textbook problems listed on the syllabus.

Ashley Wagner 2A

Pt(s) is added when there is no conducting metal on either side of the cell ( anode and cathode).

Ashley Wagner 2A

50% (C-) is needed to pass, which is 200 points.

Ashley Wagner 2A

n is the number of electrons transferred so you balance out the electrons for both of the half-reactions. The electrons in the balanced half-reactions (which the electrons should cancel out in the overall reaction) is the value of n.

Ashley Wagner 2A

Especially in the colder months, I really like to eat ramen.

Ashley Wagner 2A

I’ve been binge watching The Crown lately. Episodes are kind of long though.

Ashley Wagner 2A

I really liked kinetics!

Ashley Wagner 2A

First man orders "I'd like H2O". The second man orders "I'd like H2O too". The second man died.

Ashley Wagner 2A

Thanks for the reminder! I totally forgot lol

Ashley Wagner 2A

While both intermediates and catalyst cancel out, intermediates are made in a reaction by first appearing as a product while catalysts are added into a reaction.

Ashley Wagner 2A

I’m taking 14c and 14bl.

Ashley Wagner 2A

I don’t think we have to memorize them and it should be given in the problem.

Ashley Wagner 2A

Yes pressure only affect gas reactions. Liquid and solids are incompressible and values are independent of pressure

Ashley Wagner 2A

I listen to a lot of R&B like Daniel Caesar, H.E.R, or Khalid. Though lately I’ve been listening to older Drake and Alicia Key songs

Ashley Wagner 2A

Hess’s law is the net change in enthalpy. It also a state function so the enthalpies can be added

Ashley Wagner 2A

to take the anti-log, its 10^(-pka)

Ashley Wagner 2A

it would be the reciprocal of K, 1/K

Ashley Wagner 2A

I’m taking 14BL next quarter!

Ashley Wagner 2A

The reaction is exothermic when there is a bond formation and endothermic where there is a bond breaking.

Ashley Wagner 2A

Yes,i think we just assume the temperature is 25 degrees Celsius.

Ashley Wagner 2A

Yes I think the temperature can change mid-reaction. Therefore 2 separate Q values need to be calculated.

Ashley Wagner 2A

It is negligible when K is smaller than 10^-3, the safer option is 10^-4.

Ashley Wagner 2A

I usually watch some movies or shows. Or sometimes I listen to music.

Ashley Wagner 2A

My go to comfort movie is probably Captain America:The First Avenger or Revenge of the Sith.

Ashley Wagner 2A

P=Pressure (atm)
V=Volume (L)
n=number of moles
R=gas constant
T=temperature (K)

Ashley Wagner 2A

K is used when the reaction is at equilibrium. In contrast, Q is used at any point in the reaction.

Ashley Wagner 2A

The reverse reaction K value is just the inverse of K for the forward reaction. Therefore it would be 1/K

Ashley Wagner 2A

The sapling homework is absolutely mandatory as it is graded. The textbook problems are optional, but they do help your understanding on the topic very much.

Ashley Wagner 2A

I would recommend doing the textbook problems that are stated in the outlines as that is what helped me the most last quarter.

Ashley Wagner 2A

I think I’m going to spend some time with friends and family. Also I’m going to catch up on some Netflix since I’ve been wanting to watch The Crown for awhile.

Ashley Wagner 2A

Same, I felt a little rushed this time compared to the midterms.

Ashley Wagner 2A

I’m going to try to review my previous notes an possibly do some practice problems.

Ashley Wagner 2A

I’ve been struggling with staying motivated too, but I found that having a friend to study with has helped a lot. Also giving myself breaks while studying also helps too.

Ashley Wagner 2A

No, I don’t think there is a curve for this class.

Ashley Wagner 2A

I’m planning on attending more UA sessions and doing practice problems more frequently.

Ashley Wagner 2A

I will most likely catch up on some shows on Netflix and having out with my family.

Ashley Wagner 2A

I believe that the needed units will be given on the Constants and Equations sheet, which is on the class website.

Ashley Wagner 2A

Thank You! This will help me so much since I sometimes have trouble finding the units.

Ashley Wagner 2A

Yes, it does have 3 sig figs since the decimal is after the 0 in 350.

Ashley Wagner 2A

I usually keep all of my digits until the I get the final answer where I finally apply sig figs to that value.

Ashley Wagner 2A

No, electrons will not stay in an excited state due to it wanting to be stable.

Ashley Wagner 2A

Yes, you should always keep the lowest amount of sig figs that the question gives you.

Ashley Wagner 2A

Libby Dillon - 1J wrote:So UV radiation would have shorter wavelengths than visible light, correct?

Yes, UV wavelengths are a range between 100-400 nm while visible light is a range between 400-700nm.

Ashley Wagner 2A

Hi!
I usually use the full molar mass on the periodic table when calculating unless the molar mass was given in the question. If it wasn't given then keep the full molar mass until the end where I finally apply sig. figs. to the answer.

Ashley Wagner 2A

The state of matter doesn't affect balancing equations, but you should still write each elements state of matter. It will especially be helpful later on as we get farther.

Ashley Wagner 2A

As others have said before, there is no set way to balance chemical reactions, but I usually balance the equation from left to right and that works out for me the best.

Ashley Wagner 2A

I think it's better to round at the end rather than in between steps since the answer will be more accurate that way.

Search found 66 matches