Search found 12 matches

by MinyoungHong_1L
Wed Jun 13, 2018 10:31 pm
Forum: Conjugate Acids & Bases
Topic: HW 12.1
Replies: 5
Views: 170

Re: HW 12.1

Hello, I hope you are well, I think it has to do with the Brønsted-Lowry Definition of what an acid and what a base is that determines which one accepts the H+. Brønsted-Lowry Acid is a proton (hydrogen ion), donor. A Brønsted-Lowry base is a proton (hydrogen ion), acceptor. I hope this helps. Than...
by MinyoungHong_1L
Wed Jun 13, 2018 10:31 pm
Forum: Conjugate Acids & Bases
Topic: HW 12.1
Replies: 5
Views: 170

Re: HW 12.1

In this situation the C already has 4 bonds and wouldn't be able to accept another. But more importantly this molecule is a base, which means it has a LONE PAIR that takes on the proton. N is the only atom with a lone pair so it has to be the one that takes on the H + proton. Ahhhh thank you very m...
by MinyoungHong_1L
Wed Jun 13, 2018 9:16 pm
Forum: Conjugate Acids & Bases
Topic: HW 12.1
Replies: 5
Views: 170

HW 12.1

Hi! For acid and base reactions where the acid has multiple hydrogen atoms, how do we tell which hydrogen will be transferred in the reaction? For example 12.1a : CH 3 NH 2 has the conjugate acid CH 3 NH 3 + Why does the H+ add to the NH instead of the CH? Is there a general rule governing this proc...
by MinyoungHong_1L
Sun Jun 10, 2018 10:27 pm
Forum: Lewis Acids & Bases
Topic: Strength [ENDORSED]
Replies: 5
Views: 409

Re: Strength [ENDORSED]

So, generally speaking, the greater the electronegativity of whatever atom or molecule that the H+ is disassociating from, the stronger the acid due to the increased polarity/ionic character of that compound?
by MinyoungHong_1L
Sun Jun 10, 2018 8:59 pm
Forum: Lewis Acids & Bases
Topic: Determine Lewis Acid
Replies: 13
Views: 430

Re: Determine Lewis Acid

I am also confused by this.
I understand that a Bronsted acid can be determined by following the transfer of H+ in a reaction. However, I am wondering if there are any obvious ways to tell whether a species is a Lewis acid without drawing out Lewis structures to see the transfer of electrons.
by MinyoungHong_1L
Sun Jun 10, 2018 8:29 pm
Forum: Bronsted Acids & Bases
Topic: Bronsted vs Lewis Acids and Bases
Replies: 5
Views: 227

Re: Bronsted vs Lewis Acids and Bases

I found this sentence from the textbook helpful in understanding the terminology behind Lewis acids being electron acceptors. "A proton (H+) is an electron pair acceptor. It is therefore a Lewis acid because it can attach to ("accept") a lone pair of electrons on a Lewis base" (p...
by MinyoungHong_1L
Sun Jun 10, 2018 4:30 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7023
Views: 772159

Re: Post All Chemistry Jokes Here

What kind of fish is made up of two sodium atoms?

2Na
by MinyoungHong_1L
Sun Jun 10, 2018 4:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Sunday Step-Up Session
Replies: 2
Views: 118

Re: Sunday Step-Up Session

Screen Shot 2018-06-10 at 5.05.10 PM.png


Thought this might help!
by MinyoungHong_1L
Sun Jun 10, 2018 3:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 186
Views: 39304

Re: Saying Thank You to Dr. Lavelle

Dear Dr.Lavelle, Thank you for your kind spirit and patience throughout this quarter. Your dedication to this class and to your students is astounding, and your expertise is evident. Although chemistry is not an easy area of study for me, I was always touched by your enthusiasm for the topic. Thank ...
by MinyoungHong_1L
Sun Jun 10, 2018 3:48 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 74
Views: 25321

Re: Reading the textbook [ENDORSED]

As someone who just completed the course, I would say that the textbook can be a helpful tool in understanding the course topics within a bigger picture. Personally, I missed several classes (which I do not recommend), and the textbook helped me understand the material that I missed.
by MinyoungHong_1L
Sun Jun 10, 2018 3:44 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 32
Views: 14349

Re: Chemistry News

Here's an interesting article about the chemistry that is supposed to allow plastics to be recycled an infinite amount of times! Perhaps this is a step in reducing the plastic waste that plagues our environment.

http://science.sciencemag.org/content/360/6387/380.full
by MinyoungHong_1L
Sat May 05, 2018 4:52 pm
Forum: Significant Figures
Topic: 300 vs 300. [ENDORSED]
Replies: 8
Views: 427

Re: 300 vs 300. [ENDORSED]

Dr. Lavelle's link on the class website explaining significant figures is helpful in understanding significant figures. Additionally, I found this website explained the concept pretty well. http://chemistry.bd.psu.edu/jircitano/sigfigs.html

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