Search found 12 matches
- Wed Jun 13, 2018 11:31 pm
- Forum: Conjugate Acids & Bases
- Topic: HW 12.1
- Replies: 5
- Views: 776
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...
- Wed Jun 13, 2018 11:31 pm
- Forum: Conjugate Acids & Bases
- Topic: HW 12.1
- Replies: 5
- Views: 776
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...
- Wed Jun 13, 2018 10:16 pm
- Forum: Conjugate Acids & Bases
- Topic: HW 12.1
- Replies: 5
- Views: 776
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...
- Sun Jun 10, 2018 11:27 pm
- Forum: Lewis Acids & Bases
- Topic: Strength [ENDORSED]
- Replies: 5
- Views: 1167
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?
- Sun Jun 10, 2018 9:59 pm
- Forum: Lewis Acids & Bases
- Topic: Determine Lewis Acid
- Replies: 13
- Views: 1671
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.
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.
- Sun Jun 10, 2018 9:29 pm
- Forum: Bronsted Acids & Bases
- Topic: Bronsted vs Lewis Acids and Bases
- Replies: 5
- Views: 1357
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...
- Sun Jun 10, 2018 5:30 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3739737
Re: Post All Chemistry Jokes Here
What kind of fish is made up of two sodium atoms?
2Na
2Na
- Sun Jun 10, 2018 5:08 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Sunday Step-Up Session
- Replies: 2
- Views: 514
Re: Sunday Step-Up Session
Thought this might help!
- Sun Jun 10, 2018 4:53 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 579097
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 ...
- Sun Jun 10, 2018 4:48 pm
- Forum: Ideal Gases
- Topic: Reading the textbook
- Replies: 262
- Views: 152678
Re: Reading the textbook
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.
- Sun Jun 10, 2018 4:44 pm
- Forum: Student Social/Study Group
- Topic: Chemistry News
- Replies: 135
- Views: 170094
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
http://science.sciencemag.org/content/360/6387/380.full
- Sat May 05, 2018 5:52 pm
- Forum: Significant Figures
- Topic: 300 vs 300. [ENDORSED]
- Replies: 8
- Views: 4758
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