Search found 8 matches
- Wed Nov 23, 2016 8:51 pm
- Forum: Student Social/Study Group
- Topic: Final Study Group
- Replies: 12
- Views: 2470
Re: Final Study Group
Color me interested, as well. Is everyone off campus for Thanksgiving break?
- Wed Nov 23, 2016 6:13 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry 14B Enrollment
- Replies: 3
- Views: 1554
Re: Chemistry 14B Enrollment
In addition to this question, I heard today (in my Life Sci 30A lecture) that the Life Science 30B co-requisite is no longer required to enroll in Chemistry 14B--so that people who couldn't get into 30B might still take their next quarter of Chem. Is this true? It seems to still be a requirement whe...
- Tue Nov 15, 2016 9:13 pm
- Forum: Naming
- Topic: How to find the roman numeral when naming compounds [ENDORSED]
- Replies: 4
- Views: 10849
Re: How to find the roman numeral when naming compounds [ENDORSED]
Hello there! I'll try to answer this. When naming coordination compounds, the roman numeral is the oxidation number of the transition metal. So, if you were dealing with Fe 2+ , the oxidation number would be (II), and if it were Fe 3+ it would be (III), and so on. In this case, we have to figure out...
- Sat Nov 05, 2016 12:41 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3611577
Re: Post All Chemistry Jokes Here
Q: Why did the Chem student miss a quiz question about positively charged atoms?
A: His tutor had poor communication.
A: His tutor had poor communication.
- Thu Oct 27, 2016 12:47 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Ionic Character in Molecules
- Replies: 1
- Views: 1058
Re: Ionic Character in Molecules
Not a frequent poster, but I will try my best to answer! There are two essential concepts you need to know, I think: 1. As the difference in electronegativity between two atoms increases, so does the ionic character of their bond (because they are "sharing" the electrons less equally). 2. ...
- Wed Oct 26, 2016 8:50 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Good Visual
- Replies: 2
- Views: 694
Re: Good Visual
Kudos for finding this cool interactive thing! I find it very helpful to see animations of the orbitals and actually go through the process of "building" the atom myself. This is a good tool for that.
- Sat Oct 08, 2016 10:55 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Quiz 1 Prep: Fall 2015, Question #1 [ENDORSED]
- Replies: 1
- Views: 556
Quiz 1 Prep: Fall 2015, Question #1 [ENDORSED]
I was able to figure out the first part, but my trouble is with this question in the workbook: "How many milliliters of the stock solution would you need to add to obtain a 250 mL 0.650 M NaOH solution?" (Given that in the previous part of the question, we prepared a 3.0*10^3 mL stock solu...
- Sat Oct 01, 2016 10:15 pm
- Forum: Properties of Light
- Topic: Why is UV radiation more harmful than infrared?
- Replies: 2
- Views: 11260
Why is UV radiation more harmful than infrared?
When I was younger, my sister warned me not to peer through the microwave window while food was cooking because of radiation that might be leaking out through the door. Since then, I've learned that microwaves are not likely to hurt me. This is confirmed in Chapter 1 which shows that microwaves are ...