Search found 25 matches

by Madeline Fox 2B
Sun Mar 19, 2017 1:12 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Closed system and Midterm
Replies: 3
Views: 441

Re: Closed system and Midterm

Closed system just means that energy can be added/removed, and this can happen by heating or compression. So yes. In an open system, on the other hand, matter can be added/removed as well as energy.
by Madeline Fox 2B
Sat Mar 18, 2017 7:22 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Memorize C-H torsional strain values?
Replies: 2
Views: 592

Memorize C-H torsional strain values?

Anyone know if we will be expected to calculate the K from the difference in gibbs free energy of two conformations? And if so, do we have to memorize that a C-H eclipsed pair adds around 4KJ of energy?
by Madeline Fox 2B
Thu Mar 16, 2017 4:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 209
Views: 101143

Re: Saying Thank You to Dr. Lavelle

Thank you Dr. Lavelle! It seems rare to have such a genuine professor who cares so much about the success of his students. I really appreciate how much time you spent to put together all of the resources you gave to us these past two quarters.
by Madeline Fox 2B
Tue Mar 14, 2017 6:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Derivations
Replies: 4
Views: 533

Re: Derivations

I believe any derivation covered in class is fair game on the final
by Madeline Fox 2B
Tue Mar 14, 2017 6:36 pm
Forum: *Alkenes
Topic: Naming every alkene as cis or trans
Replies: 1
Views: 503

Naming every alkene as cis or trans

From now on when naming a structure, do we have to name every alkene as cis or trans?
by Madeline Fox 2B
Sat Mar 04, 2017 11:26 am
Forum: *Alkenes
Topic: Naming what carbon the double/triple bond is on?
Replies: 2
Views: 316

Naming what carbon the double/triple bond is on?

For naming, do we have to number which double bond the carbon is on?
e.g: 2-pentene (if the double bond was on the second carbon)
by Madeline Fox 2B
Fri Mar 03, 2017 5:34 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15892

Re: Quiz 3 Winter 2017

Do we have to memorize all of the common names for substituent naming thats in the course reader?
by Madeline Fox 2B
Mon Feb 20, 2017 5:01 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15318

Re: Quiz 2 Winter 2017

Can someone explain why question 10 is false? I thought half-lives are always the same.
by Madeline Fox 2B
Sun Feb 19, 2017 10:10 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15318

Re: Quiz 2 Winter 2017

Will we have to derive equations for quiz 2?
by Madeline Fox 2B
Sun Feb 12, 2017 10:22 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018634

Re: Post All Chemistry Jokes Here

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."
by Madeline Fox 2B
Sat Feb 04, 2017 11:26 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018634

Re: Post All Chemistry Jokes Here

Thermodynamics is a funny subject. The first time you go through it, you don't understand it at all. The second time you go through it, you think you understand it, except for one or two small points. The third time you go through it, you know you don't understand it, but by that time you are so use...
by Madeline Fox 2B
Thu Jan 26, 2017 6:59 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Min Temp at G=0?
Replies: 1
Views: 212

Min Temp at G=0?

Why is the minimum temperature of a reaction when G=0?
by Madeline Fox 2B
Thu Jan 19, 2017 2:08 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Cpm vs Cvm [ENDORSED]
Replies: 1
Views: 2844

Cpm vs Cvm [ENDORSED]

Why does molar heat capacity at a constant volume always yield a greater amount of temperature change than molar heat capacity at a constant pressure? Also why does heat capacity increase with complexity of a molecule??
by Madeline Fox 2B
Tue Jan 17, 2017 11:54 am
Forum: General Science Questions
Topic: 2 different R constants?
Replies: 2
Views: 480

2 different R constants?

Can someone explain to me why there are two different R constants? One that is .0821 & the other that is 8.3145. I'm very confused on how you know when to use each one when there is an R in the equation
by Madeline Fox 2B
Sat Dec 03, 2016 8:19 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: copper anion/cation e configuration
Replies: 1
Views: 278

copper anion/cation e configuration

When writing out the e- configuration anions/cations of exceptions like copper (Cu+), would it be 3d^5 or 3d^34s^2?
by Madeline Fox 2B
Wed Nov 30, 2016 7:02 pm
Forum: Conjugate Acids & Bases
Topic: Conjugate bases/acids that change the pH
Replies: 1
Views: 314

Conjugate bases/acids that change the pH

Which conjugate acids/bases affect the pH of a reaction?
by Madeline Fox 2B
Thu Nov 24, 2016 7:48 pm
Forum: Conjugate Acids & Bases
Topic: General Rule for Anion Stability? [ENDORSED]
Replies: 1
Views: 300

General Rule for Anion Stability? [ENDORSED]

To determine what is more acidic by looking at anion stability, what atoms have to be more electronegative? or do all of the atoms have to be the same except for one?
by Madeline Fox 2B
Mon Nov 14, 2016 6:53 pm
Forum: Ideal Gases
Topic: ΔH?
Replies: 2
Views: 391

ΔH?

Does ΔH tell you whether or not a reaction is endo/exothermic? If so, does a positive ΔH mean endo or exothermic? Also, will we have to know about endothermic/endothermic rxns for the quiz? (Specifically questions like Fall 2014 #6)
by Madeline Fox 2B
Tue Nov 08, 2016 10:21 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Heteronuclear Molecular Orbital Diagram
Replies: 1
Views: 288

Heteronuclear Molecular Orbital Diagram

If both Atom A and Atom B are Z>8, but they are heteronuclear, which diagram do you use? In the course reader, it says that "Heteronuclear with Z mixed use the z<8 diagram". However, I am not sure if he means you use that diagram only if one atom >8 and one is <8, or if you always use that...
by Madeline Fox 2B
Sat Nov 05, 2016 7:36 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Memorizing Ligands?
Replies: 2
Views: 377

Memorizing Ligands?

Anyone know if we have to memorize all of the ligands on page 117 of the course reader? If not all, which ones?
by Madeline Fox 2B
Sat Oct 29, 2016 10:47 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018634

Re: Post All Chemistry Jokes Here

Don't trust atoms... They make up everything... :/
by Madeline Fox 2B
Fri Oct 21, 2016 7:20 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018634

Re: Post All Chemistry Jokes Here

chemistry joke.jpg
chemistry joke.jpg (10.42 KiB) Viewed 8416 times
chemistry joke.jpg
chemistry joke.jpg (10.42 KiB) Viewed 8416 times
chemistry joke.jpg
chemistry joke.jpg (10.42 KiB) Viewed 8416 times
chemistry joke.jpg
chemistry joke.jpg (10.42 KiB) Viewed 8416 times
by Madeline Fox 2B
Sat Oct 15, 2016 3:54 pm
Forum: Student Social/Study Group
Topic: Rieber Hall 14A Study Group (Fall 2016)
Replies: 49
Views: 4429

Re: Rieber Hall 14A Study Group (Fall 2016)

Hi! I live in rieber too and am interested in joining!
by Madeline Fox 2B
Mon Oct 03, 2016 7:45 pm
Forum: SI Units, Unit Conversions
Topic: Conversions [ENDORSED]
Replies: 8
Views: 1005

Re: Conversions [ENDORSED]

What is the conversion from Kev to J?
by Madeline Fox 2B
Wed Sep 28, 2016 7:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Peer Facilitated Learning Sessions
Replies: 32
Views: 11225

Re: Peer Facilitated Learning Sessions

Since all of the sessions in week 1 are on the same topic, is it suggested that we only go to one a week? Or will it be beneficial to go to more than one?

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