Search found 34 matches

by Anne Kim 3F
Tue Dec 04, 2018 7:35 pm
Forum: Naming
Topic: Textbook Question 9C.1
Replies: 2
Views: 41

Re: Textbook Question 9C.1

a) says [Fe(CN)6]^4- however the answer is tetracholoroferrate (II) why is iron called ferrate and why is the charge (II) and not (IV) Each CN contributes to a -1 charge, meaning (CN) 6 has a total charge of -6. If [Fe(CN)6]^4- has a net charge of -4 and (CN)6 contributes to -6 of that charge, Fe m...
by Anne Kim 3F
Tue Dec 04, 2018 7:15 pm
Forum: Naming
Topic: Oxidation Number
Replies: 2
Views: 59

Re: Oxidation Number

Joon Chang 4A wrote:"Describe coordination compounds for the transition metal ions in terms of coordination number,
oxidation number, and types of ligands." This is under Outline 6 and it is in the syllabus so I think it could be on the finals.


Thank u :)
by Anne Kim 3F
Tue Dec 04, 2018 6:57 pm
Forum: Naming
Topic: Oxidation Number
Replies: 2
Views: 59

Oxidation Number

I don't remember going over oxidation number during lecture. Will it be part of the finals?
by Anne Kim 3F
Tue Dec 04, 2018 6:41 pm
Forum: Naming
Topic: 7th Edition 9C. 1
Replies: 3
Views: 68

Re: 7th Edition 9C. 1

Ryan Danis 1K wrote:On question 1a, the name of the coordination compound of [Fe(CN)6]4- is hexacyanoferrate (II) ion. How come the CN is denoted as cyano instead of cyanido in the name of the compound? Thanks!


Lavelle said we add an -o for the anions when we name in class.
by Anne Kim 3F
Tue Dec 04, 2018 6:38 pm
Forum: Naming
Topic: Textbook Question 9C.1
Replies: 2
Views: 60

Textbook Question 9C.1

a) says [Fe(CN)6]^4-

however the answer is tetracholoroferrate (II)

why is iron called ferrate and why is the charge (II) and not (IV)
by Anne Kim 3F
Tue Dec 04, 2018 6:37 pm
Forum: Naming
Topic: Textbook Question 9C.1
Replies: 2
Views: 41

Textbook Question 9C.1

a) says [Fe(CN)6]^4-

however the answer is tetracholoroferrate (II)

why is iron called ferrate and why is the charge (II) and not (IV)
by Anne Kim 3F
Thu Nov 29, 2018 8:45 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 918883

Re: Post All Chemistry Jokes Here

Not a chem joke, but Lavelle looks like Larry David
by Anne Kim 3F
Tue Nov 27, 2018 9:49 pm
Forum: Student Social/Study Group
Topic: Discussion on Wednesday
Replies: 4
Views: 178

Re: Discussion on Wednesday

Chem_Mod wrote:Email him to find out.


I emailed him, but he didn't get back to me
by Anne Kim 3F
Tue Nov 27, 2018 9:46 pm
Forum: Formal Charge and Oxidation Numbers
Topic: TEST 3
Replies: 4
Views: 235

Re: TEST 3

The only equations given are the ones on the sheet given on every test. The Formal charge equation is just FC = Valence - [Lone Pairs + (1/2 Bonding Pairs)]. It would behoove you to memorize it. I noticed that there was an extra equation given in test 2 compared to test 1 so I was wondering in case...
by Anne Kim 3F
Tue Nov 27, 2018 9:32 pm
Forum: Formal Charge and Oxidation Numbers
Topic: TEST 3
Replies: 4
Views: 235

TEST 3

Does anyone know if the equation for the FC will be provided on test 3?
by Anne Kim 3F
Tue Nov 20, 2018 3:38 pm
Forum: Student Social/Study Group
Topic: Discussion on Wednesday
Replies: 4
Views: 178

Discussion on Wednesday

Hey yall does anyone have discussion with Neel on Wednesday?
Anyone know if he is cancelling discussion or not?
by Anne Kim 3F
Wed Nov 14, 2018 11:24 pm
Forum: Administrative Questions and Class Announcements
Topic: Grades
Replies: 7
Views: 269

Re: Grades

Raquel Rodriguez wrote:In the syllubus is says that you need 50% to get a c- or higher. Does that mean you need 250/500 points to pass the class?


my TA said 50% in the class is passing, so I believe 250 points is enough to pass the class
by Anne Kim 3F
Wed Nov 14, 2018 10:30 pm
Forum: Ionic & Covalent Bonds
Topic: Hydrogen Bond
Replies: 7
Views: 126

Re: Hydrogen Bond

Amy Dinh 3I wrote:Yes! A molecule can have both hydrogen bonds and covalent bond. Hydrogen bonds are INTERmolecular while covalent bonds are INTRAmolecular.



Can you tell me what the difference is between inter- and intra- ?
by Anne Kim 3F
Wed Nov 14, 2018 10:29 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Thanksgiving [ENDORSED]
Replies: 14
Views: 314

Re: Thanksgiving [ENDORSED]

Hello, Does anyone know if we are ahead in class and won't have lecture next Wednesday? I'm trying to make travel plans :). Thanks! He's been ending lectures pretty early as well and none of the students are like slowing down the lectures by asking questions every now and then too so I honestly fee...
by Anne Kim 3F
Tue Nov 13, 2018 8:38 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Homework Focus 2A
Replies: 3
Views: 117

Homework Focus 2A

Number 5 in Focus 2A asks for electron configuration of Cu^2+. The answer is [Ar]3d^10 instead of 3d^9. Why is it so?
by Anne Kim 3F
Tue Nov 06, 2018 5:31 pm
Forum: Limiting Reactant Calculations
Topic: Reactant vs. Reagent
Replies: 1
Views: 189

Reactant vs. Reagent

What is the difference between a reactant and a reagent?? Are they just the same things?
by Anne Kim 3F
Tue Nov 06, 2018 5:29 pm
Forum: Administrative Questions and Class Announcements
Topic: Thanksgiving Week
Replies: 1
Views: 105

Thanksgiving Week

Anyone know if Professor Lavelle cancels classes for Thanksgiving Break??
by Anne Kim 3F
Tue Nov 06, 2018 5:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Test On Tuesday
Replies: 10
Views: 436

Re: Test On Tuesday

Hi, I was wondering if chapter 1F will be included on the test on Tuesday because in class, Dr. Lavelle mentioned the test would only include information taught up to Friday's lecture, but the outline on his website shows that we should also know 1F. One of the TA also said we have to memorize the ...
by Anne Kim 3F
Tue Oct 23, 2018 12:46 am
Forum: Properties of Light
Topic: Test 2 Outline 2 Question About Electron Transition
Replies: 1
Views: 62

Test 2 Outline 2 Question About Electron Transition

Outline 2 says, "• With respect to electron transitions that give rise to a UV or visible spectrum: understand the difference between electronic transitions in atomic orbitals (atomic spectroscopy) and electronic transitions in molecular orbitals (molecular spectroscopy)." Can someone elab...
by Anne Kim 3F
Tue Oct 23, 2018 12:45 am
Forum: Properties of Light
Topic: Test 2 Equations
Replies: 14
Views: 266

Re: Test 2 Equations

Jessica Dharmawan 1G wrote:What are the equations we should memorize for Test 2?


One of the TA said we should memorize the Lyman Series and the Balmer Series.
by Anne Kim 3F
Tue Oct 23, 2018 12:44 am
Forum: Properties of Light
Topic: Visible Light Spectrum... ?
Replies: 6
Views: 119

Re: Visible Light Spectrum... ?

Tyra Nguyen 3K wrote:We just need to know it for UV and visible light (I went to Lavelle's office hours and that was what he said :))


Does that mean we only have to know the frequency of the UV and visible lights?
by Anne Kim 3F
Tue Oct 23, 2018 12:37 am
Forum: Administrative Questions and Class Announcements
Topic: Test On Tuesday
Replies: 10
Views: 436

Re: Test On Tuesday

Hi, I was wondering if chapter 1F will be included on the test on Tuesday because in class, Dr. Lavelle mentioned the test would only include information taught up to Friday's lecture, but the outline on his website shows that we should also know 1F. One of the TA also said we have to memorize the ...
by Anne Kim 3F
Thu Oct 18, 2018 7:58 pm
Forum: Student Social/Study Group
Topic: Class Grades
Replies: 4
Views: 148

Re: Class Grades

Will do!! Thank you!
by Anne Kim 3F
Thu Oct 18, 2018 7:55 pm
Forum: SI Units, Unit Conversions
Topic: How does grading for discussion posts work?
Replies: 73
Views: 2222

Re: How does grading for discussion posts work?

It did!!! Thank YOu!! I'm having trouble even finding a way to post in this forum. Can someone tell me where/how I can post a question? I agree I am having trouble with that too but in the upper left side with the three lines next to "Quick Links" shows a tab that you can view "your p...
by Anne Kim 3F
Thu Oct 18, 2018 7:53 pm
Forum: Properties of Light
Topic: Do I have to memorize the spectrum?
Replies: 20
Views: 350

Do I have to memorize the spectrum?

Do we have to memorize the spectrum of different wavelengths and be able to identify which wavelength is which kind of radiation?
by Anne Kim 3F
Sun Oct 14, 2018 10:25 pm
Forum: Student Social/Study Group
Topic: Class Grades
Replies: 4
Views: 148

Class Grades

How can I figure out my grades in this class? Is it only through MyUcla?
by Anne Kim 3F
Wed Oct 10, 2018 4:04 pm
Forum: SI Units, Unit Conversions
Topic: Quiz 1- Addition to what we should know?
Replies: 5
Views: 228

Re: Quiz 1- Addition to what we should know?

Hannah Padilla 1H wrote:For the first test, will we need to be able to identify molecular formulas from their written name? For example in problem F3.) “Write the formula for nitric acid”


We have to be able to form a chemical equation based on the molecules that will be provided in the question!
by Anne Kim 3F
Tue Oct 09, 2018 11:48 pm
Forum: General Science Questions
Topic: Thanksgiving Week
Replies: 8
Views: 298

Thanksgiving Week

Does anyone know if we have class during the Thanksgiving Week?
11/19~23
by Anne Kim 3F
Tue Oct 09, 2018 3:54 pm
Forum: General Science Questions
Topic: First Quiz
Replies: 1
Views: 146

First Quiz

Does anyone know whether we will be going over the quiz/test after we turn them in?
by Anne Kim 3F
Tue Oct 09, 2018 3:54 pm
Forum: General Science Questions
Topic: First Quiz
Replies: 1
Views: 136

First Quiz

Does anyone know whether we will be going over the quiz/test after we turn them in?
by Anne Kim 3F
Sun Sep 30, 2018 1:38 pm
Forum: General Science Questions
Topic: First Homework
Replies: 3
Views: 144

First Homework

When is our first homework assignment due? During our first discussion section or the Friday of week 1?
by Anne Kim 3F
Sat Sep 29, 2018 11:19 pm
Forum: SI Units, Unit Conversions
Topic: How does grading for discussion posts work?
Replies: 73
Views: 2222

Re: How does grading for discussion posts work?

Does anyone know when our first homework assignment is due? Is it due on the Friday of week 1 during lecture or during our discussion in week 1? Also, I remember Professor Lavelle saying that we can "choose" our homework. Does that mean we can go through our textbook and choose the questio...
by Anne Kim 3F
Sat Sep 29, 2018 11:15 pm
Forum: SI Units, Unit Conversions
Topic: How does grading for discussion posts work?
Replies: 73
Views: 2222

Re: How does grading for discussion posts work?

I'm having trouble even finding a way to post in this forum. Can someone tell me where/how I can post a question? I agree I am having trouble with that too but in the upper left side with the three lines next to "Quick Links" shows a tab that you can view "your posts" I found th...
by Anne Kim 3F
Sat Sep 29, 2018 4:07 pm
Forum: SI Units, Unit Conversions
Topic: How does grading for discussion posts work?
Replies: 73
Views: 2222

Re: How does grading for discussion posts work?

I'm having trouble even finding a way to post in this forum. Can someone tell me where/how I can post a question?

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