CHEMISTRY COMMUNITY

Liza Hayrapetyan-3K

It's impossible for it to be 100% dissolved, so we must assume its 100%.

Liza Hayrapetyan-3K

We know that an acid is considered stronger if it can lose a hydrogen easily to a base. Because the CH3 contributes electron density towards the O-H bond, it makes it harder to remove the H and makes acetic acid a weaker acid than formic acid. Basically, formic acid is stronger because CH3 in acetic...

Liza Hayrapetyan-3K

Because they dissolve fatty acids and the oils on your skin, bases give a "soapy-like" feel.

Liza Hayrapetyan-3K

We know that an acid is considered stronger if it can lose a hydrogen easily to a base. Because the CH3 contributes electron density towards the O-H bond, it makes it harder to remove the H and makes acetic acid a weaker acid than formic acid. Basically, formic acid is stronger because CH3 in acetic...

Liza Hayrapetyan-3K

Thank you this was so helpful! I was stuck on this as well. Do you guys think there will be a question like this on the final?

Liza Hayrapetyan-3K

You can check online, Professor Lavelle lists what you need to know for the test!

"Test 3 covers: End of Bonding from 3.12 (6 Ed.) and from 2D (7 Ed.); and all of Molecular Shape and Structure (see Syllabus and Outlines for details)."

Liza Hayrapetyan-3K

Does anyone know when the review sessions would be up for the final?

Liza Hayrapetyan-3K

Both answers above are correct, just remember that kinetic energy = initial energy - work function

Liza Hayrapetyan-3K

You will still get a few points taken off if the significant figures are not correct.

Liza Hayrapetyan-3K

This is because ionization energy decreases as you move across a period.

Liza Hayrapetyan-3K

Directly from Dr. Lavelle,
"Test 3 covers: End of Bonding from 3.12 (6 Ed.) and from 2D (7 Ed.); and all of Molecular Shape and Structure (see Syllabus and Outlines for details)."
Hope this helps.

Liza Hayrapetyan-3K

I tried writing jokes about the periodic table…
…but I realized I wasn’t quite in my element.

Liza Hayrapetyan-3K

What should you do if no one laughs at your chemistry jokes?
Keep telling them until you get a reaction.

Liza Hayrapetyan-3K

I'm confident the answer above mine is correct.

Liza Hayrapetyan-3K

That's true! Just work hard to at least get 250 points so you can pass the class.

Liza Hayrapetyan-3K

Thank you! I was also confused by this.

Liza Hayrapetyan-3K

Thank you so much! When will you be posting the key for this worksheet?

Liza Hayrapetyan-3K

I just want to be clear, so there is no way to get notifications if Professor Lavelle has posted anything?

Liza Hayrapetyan-3K

If this is helpful to anyone, I found a cheat sheet with all formulas we would need!

https://drive.google.com/file/d/1ahWSl0 ... sp=sharing

Liza Hayrapetyan-3K

Is this the only review session you will be having?

Lyndon: I have my regular UA sessions 6-8pm Tuesday night in Covel 210 where I review material from each week. This Saturday is my only midterm review session, but it is 3 hours and should be plenty!

Liza Hayrapetyan-3K

Yes, we have that Thursday and Friday off.

Liza Hayrapetyan-3K

Also, remember to ignore any zeros in the beginning!

Liza Hayrapetyan-3K

Thank you so much! This was extremely helpful.

Liza Hayrapetyan-3K

Have you heard the one about a chemist who was reading a book about helium?
He just couldn't put it down.

Liza Hayrapetyan-3K

An eV is a unit of energy equal to approximately 1.602×10−19 joules (symbol J). One eV is equal to the amount of energy one electron acquires by accelerating through a potential difference of one volt.

Liza Hayrapetyan-3K

Yes you should refer to the second outline.

Liza Hayrapetyan-3K

Amazon has some for really cheap if this helps, I'm sure you can do the calculations yourself but they will be time-consuming.

Liza Hayrapetyan-3K

No, because it mentions how the final volume BECOMES 125 mL meaning it replaces the 75 mL. I think that part was meant to test us.

Liza Hayrapetyan-3K

Yeah, our professor just said that we can use them for review. Although they are highly recommended it's not required because Professor Lavelle can't see who has done them or the scores they got.

Liza Hayrapetyan-3K

Thanks so much!

Liza Hayrapetyan-3K

Yes. I believe that's correct. I think he just wants to see the class communicating with each other.

CHEMISTRY COMMUNITY

Search found 31 matches

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Re: Why is HCOOH a stronger acid than CH3COOH? [ENDORSED]

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