CHEMISTRY COMMUNITY

Jayde Felix 4H

Yes, understand the concept but don't worry about equations having to do with them.

Jayde Felix 4H

For the final, will we have to know how to determine the pH of a diluted strong acid solution?

Jayde Felix 4H

Thanks Lyndon you're the best

Jayde Felix 4H

becca_vandyke_4b wrote:Are we going to get the same equation sheet for the final thats been on the tests? Trying to figure out if I need to memorize any equations.

We will, yes

Jayde Felix 4H

Wait until the end, and even if you're a small amount off, you won't get marked down.

Jayde Felix 4H

Pooja Sheladiya 1L wrote:Does anyone know what the cutoff for getting an A is?

I don't think we'll know until the quarter is over and the final is graded :/

Jayde Felix 4H

This helped incredibly thank you so much

Jayde Felix 4H

Dr. Lavelle mentioned checking out Sapling Learning through a textbook access code too.

Jayde Felix 4H

Yes, we'll probably get them as usual in our discussion section.

Jayde Felix 4H

This article might also help: https://www.khanacademy.org/science/bio ... perception

Jayde Felix 4H

One sigma, two pi. First bonds are always sigma, and any additional bonds are pi bonds.

Jayde Felix 4H

Bent and angular are the same.

Jayde Felix 4H

Do we need to know the formula to find the interaction potential energy? He mentioned it in lecture on November 7.

Jayde Felix 4H

In Test 3, will we be expected to know Coulombs law?

Jayde Felix 4H

For the sixth edition, the second half of Chapter 3, 6.4-6.5 and 4.1-4.7.

Jayde Felix 4H

An ion means it has a positive or negative charge.

Jayde Felix 4H

It won't be a curve necessarily, but I do think that grades will be adjusted when grades are posted. I don't think that you can be curved down at all.

Jayde Felix 4H

The last day of instruction is Friday of Week 10,so December 7.

Jayde Felix 4H

Okay, thank you!

Jayde Felix 4H

Lone pairs give off repulsive forces, so they push the bond pairs closer together, making the bond angles smaller.

Jayde Felix 4H

I'm pretty sure they will end on Wednesday this week, but Dr. Lavelle said that he was going to check with the UAs last week, but I don't think he's updated us yet.

Jayde Felix 4H

Whatever the midterm didn't cover from Outline 3, and Outline 4 from his class website.

Jayde Felix 4H

Does anyone know how to access the Sapling Learning resources that he mentioned in the lecture today? I bought a used textbook so I don't have an access code or anything.

Jayde Felix 4H

Today he announced there will be no class on Wednesday since we are ahead of schedule.

Jayde Felix 4H

He announced today in lecture that we are ahead of schedule so no class this upcoming Wednesday.

Jayde Felix 4H

He hasn't confirmed yet, but he's been going pretty fast and will probably announce it by Friday's lecture

Jayde Felix 4H

Closer to zero means more stable than other structures with different charges.

Jayde Felix 4H

Probably not as much, but we will still need to know Lewis structures and build on what we've already learned.

Jayde Felix 4H

Thank you! This helps so much.

Jayde Felix 4H

I'm pretty sure that the upcoming test will cover the next outline.

Jayde Felix 4H

Anything smaller than 10^-18 cannot be measured

Jayde Felix 4H

P is in the third row and can have an expanded octet. Any element in the third row or below can have an expanded octet.

Jayde Felix 4H

Yes, there's still homework due this week

Jayde Felix 4H

Why do we multiply by 7 in number 1?

Jayde Felix 4H

Other than a calculator, will we need to bring anything for our midterm (blue book, scantron, etc.)? And is the midterm supposed to be taken in pen or pencil?

Jayde Felix 4H

The central atom is the atom with the lowest ionization energy.

Jayde Felix 4H

So we will just need to know how to draw Lewis structures of cations and anions and nothing further with cations and anions right

Jayde Felix 4H

Will we be expected to know the polarizability of anions and the polarizing power of cations and their periodic trends on the midterm?

Jayde Felix 4H

It is the atom with the lowest ionization energy.

Jayde Felix 4H

I believe that any type of post would count, but talk to your TA just in case.

Jayde Felix 4H

Here, E would represent the energy of the photon

Jayde Felix 4H

Just wait until the very end of the problem to round

Jayde Felix 4H

Do we need to know the Coulomb potential energy equation from Chapter 2 for Test 2?

Jayde Felix 4H

These were just the two exceptions that we need to know, and they are just understood.

Jayde Felix 4H

Test 2 will just cover everything from the beginning of The Quantum World to the end of Friday's (October 19) lecture.

Jayde Felix 4H

Thank you so much! These help a lot.

Jayde Felix 4H

I agree ^ the textbook has whatever is necessary to know.

Jayde Felix 4H

I feel like handwriting notes help a lot in terms of knowing which Greek letters and equation formats apply. Plus, Dr. Lavelle gives enough time on each slide to copy everything down.

Jayde Felix 4H

Just do the next five modules and go over outline 2! You'll be set.

Jayde Felix 4H

On Outline 1 for Test 1 this week, Dr. Lavelle says we need to be able to write symbols for the elements, given their names, and vice versa. Does anyone know which elements we should know for sure?

Jayde Felix 4H

During my lecture, Dr. Lavelle said that it'd be better to focus on Test 1 topics to turn in for homework this week.

Jayde Felix 4H

Tyler DeWitt on YouTube does a great job of giving practice problems and explaining how to solve them.
https://www.youtube.com/channel/UCj3EXp ... peVWnVLoew

Jayde Felix 4H

My TA said that they are still in the process of making the test and that there are about eight questions right now.

Jayde Felix 4H

MaiaRodriguezChoi3E wrote:Does it matter if we respond to a question that's already been answered or do we just need to make three posts?

I think any three posts are okay!

Jayde Felix 4H

When you have one mole of an atom, it’s a direct translation between its atomic weight and grams.
Ex) 1 mole of Iron-56 = 56 grams

Jayde Felix 4H

Yes, replies count as posts.

Jayde Felix 4H

I believe that you know to multiply to get a whole number as your final step in finding the empirical formula.

Jayde Felix 4H

I'm sure that one is fine! I am using the TI-36X Pro, and my roommate took this class last year and she said that it's okay.

Jayde Felix 4H

Tyler DeWitt on YouTube (https://www.youtube.com/user/tdewitt451) and the AP Chemistry Subject on Khan Academy are super helpful and descriptive.

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