Search found 31 matches
- Sun Jun 10, 2018 10:21 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bent/angular [ENDORSED]
- Replies: 5
- Views: 717
Re: Bent/angular [ENDORSED]
Yes, however I think Dr.Lavelle will say angular.
- Sun Jun 10, 2018 10:18 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Sigma vs Pi Bonds
- Replies: 4
- Views: 661
Re: Sigma vs Pi Bonds
Is this all we have to know in regards to stating what bonds there are?
- Sun Jun 10, 2018 10:17 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Drawing coordination compounds
- Replies: 2
- Views: 440
Re: Drawing coordination compounds
I also don't think that they will be on their but anything is fair game for the final so I would definitely brush up on them.
- Sun Jun 10, 2018 10:17 pm
- Forum: Student Social/Study Group
- Topic: Past Final Exams
- Replies: 6
- Views: 784
Re: Past Final Exams
can anyone email them to me as well? eoybfunding@gmail.com
- Sun Jun 10, 2018 10:16 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR
- Replies: 7
- Views: 984
Re: VSEPR
Chapter 4 in the book has a really good chart with diagrams!
- Sun Jun 10, 2018 10:15 pm
- Forum: Properties of Electrons
- Topic: Wave-like Properties of Electron
- Replies: 5
- Views: 674
Re: Wave-like Properties of Electron
I believe it is a given value.
- Sun Jun 10, 2018 10:13 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 576687
Re: Saying Thank You to Dr. Lavelle
Dear Dr.Lavelle, Thankyou so much for teaching this class this quarter. Although I was really scared this quarter, you were a great professor. One thing I really enjoyed from your class was that you really taught the basics for those who weren't as familiar with the material from high school. Thanky...
- Sat Jun 09, 2018 1:56 pm
- Forum: Hybridization
- Topic: Bond types
- Replies: 4
- Views: 645
Re: Bond types
do we need to know this for the Final? Like what possible questions could be asked?
- Sat Jun 09, 2018 1:56 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Homework Question 2.41
- Replies: 3
- Views: 629
Re: Homework Question 2.41
do you think that Lavelle will focus on quantum on the final or more VESPR and more recent material?
- Sat Jun 09, 2018 1:54 pm
- Forum: Ionic & Covalent Bonds
- Topic: Lowest Ionization Trend
- Replies: 2
- Views: 379
Re: Lowest Ionization Trend
is it the same as ionic radius?
- Sat Jun 09, 2018 1:52 pm
- Forum: Lewis Structures
- Topic: Lowest energy lewis structure
- Replies: 5
- Views: 7027
Re: Lowest energy lewis structure
you want to make sure your bonds will make sure that the formal charge is the lowest.
- Sat Jun 09, 2018 1:52 pm
- Forum: Properties of Light
- Topic: Review Session from yesterday
- Replies: 1
- Views: 351
Re: Review Session from yesterday
please let me know as well if you do!
- Sat Jun 09, 2018 1:49 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configuration-(Sn)
- Replies: 5
- Views: 715
Re: Electron Configuration-(Sn)
I just remember that when writing them, for the energy levels,its f,d,s,p but in general you refer to the orbitals as s,p,d,f
- Sat Jun 09, 2018 1:47 pm
- Forum: Bronsted Acids & Bases
- Topic: J.5
- Replies: 2
- Views: 469
acids and bases
Chem community isn't letting me post a new question so I thought id ask you. How can you tell if it’s acidic, basic, or amphoteic if we’re just given the molecule?
- Sat Jun 09, 2018 1:42 pm
- Forum: Ionic & Covalent Bonds
- Topic: Help on 3.49
- Replies: 2
- Views: 410
Re: Help on 3.49
Once you draw the Lewis Structure you can use the formula for formal charge! (4-5)=-1
- Sat Jun 09, 2018 1:40 pm
- Forum: Naming
- Topic: Naming on Final
- Replies: 8
- Views: 1143
Re: Naming on Final
I think that you will have to know what molecule it is based on its name, but I'm guessing they will be fairly simple.
- Sat Jun 09, 2018 1:38 pm
- Forum: Hybridization
- Topic: strength of sigma and pi bonds
- Replies: 10
- Views: 1304
Re: strength of sigma and pi bonds
Why do Pi bonds break when they rotate?
- Sat Jun 09, 2018 1:37 pm
- Forum: Sigma & Pi Bonds
- Topic: exceptions
- Replies: 2
- Views: 460
Re: exceptions
no, Lavelle didn't mention it I don't think.
- Sat Jun 09, 2018 1:36 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Grading question
- Replies: 11
- Views: 1796
Re: Grading question
im not sure that 250 points will guarantee a C- because the exams and homework points are scaled differently so it depends what you score on them.
- Sat Jun 09, 2018 1:34 pm
- Forum: Lewis Acids & Bases
- Topic: Protons are lewis acids?
- Replies: 5
- Views: 2067
Re: Protons are lewis acids?
One of the UA's said that its positively charged when its a proton, but when it accepts its the opposite.
- Sat Jun 09, 2018 1:33 pm
- Forum: Amphoteric Compounds
- Topic: Lecture slides
- Replies: 1
- Views: 403
Re: Lecture slides
send your email and I can email them to you!
- Sat Jun 09, 2018 1:31 pm
- Forum: Empirical & Molecular Formulas
- Topic: Empirical to molecular
- Replies: 3
- Views: 4199
Re: Empirical to molecular
I believe this was one of the first examples Dr.Lavelle did in class during week 1! so if you take a look in your notes theres a step-by-step process!
- Sun Apr 22, 2018 10:14 pm
- Forum: Properties of Light
- Topic: Memorizing formulas test 2
- Replies: 16
- Views: 1765
Re: Memorizing formulas test 2
All of them should be on the test but I recommend doing similar problems until you get the hang of it because you naturally will start to remember the steps of how to solve those problems!
- Sun Apr 22, 2018 10:09 pm
- Forum: Properties of Light
- Topic: test 2
- Replies: 18
- Views: 1650
Re: test 2
Will we need to know what kind of electromagnetic radiation was used by finding the wavelength of radiation like in problem 1.33 for the test, or should we just know how to find what the radiation wavelength is?
- Sun Apr 22, 2018 10:04 pm
- Forum: DeBroglie Equation
- Topic: Wavelength and De Broglie Equation [ENDORSED]
- Replies: 9
- Views: 1049
Re: Wavelength and De Broglie Equation [ENDORSED]
Well, yes however you would use the De Broglie equation when its referring to mass as well.
- Sun Apr 15, 2018 9:10 pm
- Forum: Empirical & Molecular Formulas
- Topic: Finding Molecular X
- Replies: 9
- Views: 1005
Re: Finding Molecular X
I don't believe we have gone over that, I would ask a TA or Dr.Lavelle on Monday!
- Sun Apr 15, 2018 9:08 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Which mass of oxygen should be used? [ENDORSED]
- Replies: 23
- Views: 3358
Re: Which mass of oxygen should be used? [ENDORSED]
Dr. Lavelle usually rounds and when I do some practice problems with the actual number, I end up getting the same thing so I don't think you should stress to hard about that.
- Sun Apr 15, 2018 9:06 pm
- Forum: Empirical & Molecular Formulas
- Topic: Finding Empirical and Molecular Formula [ENDORSED]
- Replies: 6
- Views: 986
Re: Finding Empirical and Molecular Formula [ENDORSED]
So if they are both the same and they can't be divided, they just remain the same?
- Sun Apr 08, 2018 4:36 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Test #1
- Replies: 1
- Views: 270
Re: Test #1
Yes! :)
- Sun Apr 08, 2018 4:33 pm
- Forum: Balancing Chemical Reactions
- Topic: Catalysts [ENDORSED]
- Replies: 4
- Views: 350
Re: Catalysts [ENDORSED]
Yes, I believe you are correct. The catalyst isn't reacting, it's just speeding up the reaction.
- Sun Apr 08, 2018 4:27 pm
- Forum: Empirical & Molecular Formulas
- Topic: Naming compounds
- Replies: 4
- Views: 576
Re: Naming compounds
Dr.Lavelle also mentioned in class on the first day that he would not give us a compound without its molecular formula until we learn exactly how to name them. Hope that helped!