Search found 22 matches

by Preet_Bains_1D
Wed Mar 08, 2017 5:32 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 16095

Re: Quiz 3 Winter 2017

Ethan_Kato_1D wrote:For number 5, how are there 2 intermediates?

Look in the course reader on page 84 and 85. It has an example of the same mechanism.
by Preet_Bains_1D
Wed Mar 08, 2017 5:29 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 16095

Re: Quiz 3 Winter 2017

304751905 wrote:for #1, why do we need "iso" in front of propyl? wouldn't the 4- signify the branching?

The "iso" signifies that it is CH(CH3)2 instead of CH2CH2CH3. If the substituent was CH2CH2CH3 then the answer would be 4-propyldecane.
by Preet_Bains_1D
Sun Feb 05, 2017 5:30 pm
Forum: Balancing Redox Reactions
Topic: Extra YouTube Help
Replies: 2
Views: 339

Re: Extra YouTube Help

No problem :)
by Preet_Bains_1D
Sun Feb 05, 2017 3:00 pm
Forum: Balancing Redox Reactions
Topic: Extra YouTube Help
Replies: 2
Views: 339

Extra YouTube Help

Here are two videos I found on Youtube that helped me to further understand REDOX Reactions and Electrochemistry: REDOX: https://www.youtube.com/watch?v=lQ6FBA1HM3s ELECTROCHEMISTRY: https://www.youtube.com/watch?v=IV4IUsholjg I also noticed these videos are really useful to watch the day before a t...
by Preet_Bains_1D
Sun Feb 05, 2017 2:55 pm
Forum: Balancing Redox Reactions
Topic: Pneumonic Device
Replies: 2
Views: 227

Re: Pneumonic Device

No problem :)
by Preet_Bains_1D
Sun Feb 05, 2017 2:54 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic Cell
Replies: 2
Views: 151

Re: Galvanic Cell

I get it now. Thank you Dr. Lavelle.
by Preet_Bains_1D
Sun Feb 05, 2017 4:21 am
Forum: Balancing Redox Reactions
Topic: Pneumonic Device
Replies: 2
Views: 227

Pneumonic Device

I noticed Dr. Lavelle used the LEO device but I found another one in a YouTube video more useful:

OILRIG
OIL = Oxidation is Loss....(of electrons)
RIG = Reduction is Gain....(of electrons)

Hope this helps :)
by Preet_Bains_1D
Sun Feb 05, 2017 4:19 am
Forum: Student Social/Study Group
Topic: Formulas
Replies: 4
Views: 516

Re: Formulas

I find it best if I use the laminated sheet for formulas and clip it up somewhere or attach it to a clipboard and prop that up so that it doesn't take up too much space on my desk and I can always just look up at it for reference instead of trying to find it in on my desk.
by Preet_Bains_1D
Sun Feb 05, 2017 4:10 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic Cell
Replies: 2
Views: 151

Galvanic Cell

Hello, I was wondering if anyone knew whether, in the graphic on page 45 on the course reader, or not there was Copper dissolved in the solution in which the cathode is immersed. Or is only the cathode made of Copper? Or both? Thanks in advance! :)
by Preet_Bains_1D
Wed Nov 16, 2016 1:30 am
Forum: Naming
Topic: Quiz 3 preparation - Fall 2015
Replies: 2
Views: 321

Re: Quiz 3 preparation - Fall 2015

Didn't the question state pentaamminebromocobalt (III)? So it should be neutral. But from what I understand, the questions will not always have the word "ion" after the compound so you just have to use intuition. But also my TA said that if we are asked to name a compound on the quiz from ...
by Preet_Bains_1D
Sun Nov 13, 2016 2:00 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Cis- versus Trans-
Replies: 2
Views: 354

Re: Cis- versus Trans-

You're totally correct but just to add to that, if the compound is cis- then the same elements on the same side can bind in two places to the Lewis Acid versus only one being able to form a coordinate covalent bound if the molecule was trans-.
by Preet_Bains_1D
Sun Nov 13, 2016 1:53 am
Forum: Ideal Gases
Topic: Chemical equilibrium
Replies: 4
Views: 662

Re: Chemical equilibrium

It will remain at equilibrium unless some condition of the reaction is changed. For example, if the temperature or pressure is changed then the reaction will move in a certain direction and the same will happen if the concentrations of the reactants or products are changed.
by Preet_Bains_1D
Wed Oct 26, 2016 12:09 am
Forum: Ionic & Covalent Bonds
Topic: Lewis Structure of Ionic vs. Covalent
Replies: 3
Views: 348

Re: Lewis Structure of Ionic vs. Covalent

viewtopic.php?f=30&t=16106#top
Lavelle's last response will help you.
by Preet_Bains_1D
Tue Oct 18, 2016 11:49 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7726
Views: 1044011

Re: Post All Chemistry Jokes Here

What element is a girl's future best friend?
Carbon lolololololol
by Preet_Bains_1D
Tue Oct 11, 2016 11:32 pm
Forum: DeBroglie Equation
Topic: Workbook Prep Quiz Answers
Replies: 3
Views: 478

Re: Workbook Prep Quiz Answers

All of the answers are in the correct sig figs except #4 on the Fall 2015 Answers. It says the answer is 3.6x10^(-19) J when the answer should be 3.61x10^(-19) J.
by Preet_Bains_1D
Sun Oct 09, 2016 8:48 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7726
Views: 1044011

Re: Post All Chemistry Jokes Here

What did the Samsung engineers learn about right before making the Galaxy Note 7?

Spontaneous Combustion
by Preet_Bains_1D
Sun Oct 09, 2016 7:56 pm
Forum: Trends in The Periodic Table
Topic: Up to which topic will the first quiz cover? [ENDORSED]
Replies: 2
Views: 287

Re: Up to which topic will the first quiz cover? [ENDORSED]

It's covering up to where your lecture left off on the on before the last lecture.
by Preet_Bains_1D
Fri Oct 07, 2016 2:27 pm
Forum: Quantum Numbers and The H-Atom
Topic: Magnetic Quantum Number [ENDORSED]
Replies: 2
Views: 519

Re: Magnetic Quantum Number [ENDORSED]

From what I understand, the magnetic quantum number is the range between positive "l" and negative "l" so that's why the magnetic quantum numbers for l=1 are -1,0,1. Another example would be for when l=2, the magnetic quantum number would be -2,-1,0,1,2. Hope that helps.
by Preet_Bains_1D
Sun Sep 25, 2016 3:46 pm
Forum: SI Units, Unit Conversions
Topic: Review Principles question E15
Replies: 8
Views: 963

Re: Review Principles question E15

niceeeeeeeee, good explanation too
by Preet_Bains_1D
Sun Sep 25, 2016 3:21 pm
Forum: SI Units, Unit Conversions
Topic: Review Principles question E15
Replies: 8
Views: 963

Re: Review Principles question E15

I think you're supposed to determine what "M" is since they're not specifying the metal using the molar mass they gave to you and then work from there but I don't know either where they're getting "sulfide", sorry.
by Preet_Bains_1D
Sun Sep 25, 2016 2:53 pm
Forum: SI Units, Unit Conversions
Topic: Review Principles question E15
Replies: 8
Views: 963

Re: Review Principles question E15

Could you post a picture of it?
by Preet_Bains_1D
Sun Sep 25, 2016 12:42 pm
Forum: Limiting Reactant Calculations
Topic: Mass Always Equal?
Replies: 3
Views: 476

Re: Mass Always Equal?

Since there is a specific ratio between, for example, two reactants for the reaction, only a certain amount of Reactant A will be used in respect to Reactant B so whichever one "runs out" first is limiting the reaction because no more of it is available and the one remaining is in excess. ...

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