CHEMISTRY COMMUNITY

Jacob Kirkosian 3C

To elaborate: the anions are larger than the respective base atom because the larger number of electrons brings about more repulsion between individual electrons in the outer shell causing the radius to increase. The opposite is true of a cation in which the lack of the final electron allows for the...

Jacob Kirkosian 3C

Pi bonds only apply to covalent bonds because, by definition, a pi bond requires two lobes from an orbital of two atoms to overlap, hence the electron pairs are being shared between both atoms (covalent).

Jacob Kirkosian 3C

With thymol blue: when moving from a pH of 1.2 to 2.8, the color of the indicator will change from red to yellow. From a pH of 8.0 to 9.6, the thymol blue will move from yellow to blue.

Jacob Kirkosian 3C

Ferrate is used when the coordination compound contains iron and when the compound is an anion. These conditions make the naming of the coordination compound in Latin and with the “-ate” suffix.

Jacob Kirkosian 3C

When you are asked to show hybridization via electron promotion on a box diagram the problem wants you to show, as an example, the movement of an electron from the 2s to 2p orbital allowing for hybridization of the s and p orbitals to sp.

Jacob Kirkosian 3C

I’m sorry for everyone reading this, but:

Q: What is the chemical formula for "banana"?

A: BaNa2

Jacob Kirkosian 3C

Have you tried meditating? Trying to think about absolutely nothing helps put all of life’s problems in perspective. Take 10 minutes everyday you study to contemplate everything you’ve learned and what subjects you may be lacking in.

Jacob Kirkosian 3C

The textbook is helpful in clarifying details from the lecture. It provides a more in-depth look into the material and example problems provided during the lecture.

Jacob Kirkosian 3C

I had the same problem. My AP Chemistry teacher in senior year barely taught and spent more time making jokes about shoes. I’m happy that Dr. Lavelle chooses to spend time teaching quantum concepts so that the rest of Gen. Chem makes sense from a physics perspective.

Jacob Kirkosian 3C

To Dr. Lavelle,

Thank you for genuinely teaching chemistry! I have learned more within a quarter of your general chemistry class (14A) than I had in AP Chemistry my senior year. Again, thank you!

Jacob Kirkosian 3C

Fun fact: The Maillard reaction causes the browning on foods such as meats and vegetables and is the result of a reaction between amino acids and reducing sugars.

Jacob Kirkosian 3C

They are somewhat related in that when the intermolecular forces are stronger/weaker in one compound compared to another, dissimilar compound, both the boiling and melting points tend to increase/decrease in the same direction (positive/negative).

Jacob Kirkosian 3C

Thank you for your advice! Staying on schedule is hard at times with the work load, but your post has motivated me to continue reading and studying every recommended lesson on the syllabus.

Jacob Kirkosian 3C

Thank you to everyone who wrote a response to this question! Since signing up for 14A I’ve been seeking advice as to how to sign up for the next course.

Jacob Kirkosian 3C

Thank you for the advice! As an aspiring pre-med student, I hope to gain an in-depth understanding of organic chemistry and chemistry as a whole.

Jacob Kirkosian 3C

I believe that both a lowercase f and the Greek letter nu (which looks very similar to a v) can be used to denote frequency. However, nu is more often used when the frequency is related to electromagnetic waves.

Jacob Kirkosian 3C

I'd post another chemistry joke but all the good ones argon.

Jacob Kirkosian 3C

From what I remember from high school chemistry it seems to be alphabetical a majority of the time, however if there are any polyatomics within a compound (i.e. OH- is in (CH3+)(OH-) => CH3OH), then the order of the elements (or the letters rather) can change within the molecular formula.

Jacob Kirkosian 3C

I found throughout high school chemistry that having a good working knowledge of prefixes and generally used polyatomics makes naming more complicated compounds a bit easier. Regardless, there will be some memorization involved in learning the actual names of compounds based off of their molecular f...

Jacob Kirkosian 3C

Not sure if it's already been posted but: A proton, a neutron, and an electron walk into a bar. The proton and electron ask the bartender how much for a drink and, after answering, the particles pay up the bartender's tab. When the neutron asks the bartender how much for a drink the bartender respon...

CHEMISTRY COMMUNITY

Search found 20 matches

Re: atoms ions radius

Re: Pi Bonds

Re: Use "thymol blue" for both basic and acidic indicator?

Re: "ferrate"

Re: Electron Promotion and Hybridization

Re: Post All Chemistry Jokes Here

Re: Final Jitters

Re: Reading the textbook

Re: Rusty on High School Chem [ENDORSED]

Re: Saying Thank You to Dr. Lavelle

Re: Culinary Chemistry

Re: Boiling and Melting point

Re: Advice from a Medical Student [ENDORSED]

Re: 14B Enrollment [ENDORSED]

Re: Advice from a Medical Student [ENDORSED]

Re: Uncertainty in Speed [ENDORSED]

Re: Post All Chemistry Jokes Here

Re: Chemical Principles

Re: Unfamiliar Names of Molecules

Re: Post All Chemistry Jokes Here