Search found 22 matches
- Sat Mar 18, 2017 5:36 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: Rate Limiting Step
- Replies: 2
- Views: 525
Rate Limiting Step
In reaction mechanisms, how do we determine which step is the slow step if it is not given to us?
- Tue Mar 07, 2017 1:02 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2017
- Replies: 183
- Views: 29263
Re: Quiz 3 Winter 2017
how would you draw out 2-butene or anything with a number in front of it ??? For 2-butene the number identifies where the double bond is located since but ene (the -ene means a double bond) so it is located on the second Carbon. For anything else with a number in front of it, it just means what car...
- Tue Mar 07, 2017 12:56 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2017
- Replies: 183
- Views: 29263
Re: Quiz 3 Winter 2017
for #1, why do we need "iso" infant of propyl? wouldn't the 4- signify the branching? This is because "iso" identifies that there is 2 CH3's coming off of 1 CH (in all there is 3 carbons so prop). That is what CH(CH3)2 means so iso is used and it is connected to the 4th carbon a...
- Mon Feb 20, 2017 3:55 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 2 Winter 2017
- Replies: 160
- Views: 24337
Re: Quiz 2 Winter 2017
204177206 wrote:Will Quiz 2 be 40 minutes as well, and of similar format as Quiz 1?
Yes this is correct, Dr. Lavelle formats all his quizzes this way.
- Sun Feb 19, 2017 6:30 pm
- Forum: General Rate Laws
- Topic: Rate law factors [ENDORSED]
- Replies: 2
- Views: 581
Re: Rate law factors [ENDORSED]
I saw this in the chapter in the textbook and am curious about the answer/people's thoughts. It states, what would be the units of k for an overall order of 3/2 if the concentrations were expressed in grams per milliliter, g.mL-1?
- Thu Feb 09, 2017 12:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25413
Re: Quiz 1 Preparation Answers
Is there any chance we will get the answers to Quiz 1 to help study for the midterm?
- Wed Feb 01, 2017 11:23 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25413
Re: Quiz 1 Preparation Answers
Hi Everyone, I have a question on #10. So when I did the problem, I divided 200/20, but I was wondering if someone can please explain the conversion factor to get the answer on the key? Thank you I'm not sure if the conversion factor is on the key for this one or not but you first have to convert d...
- Wed Feb 01, 2017 11:21 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25413
Re: Quiz 1 Preparation Answers
deantuazon2G wrote:So for number 11, do we just assume that the deltaH given is per mole?
Yes just assume it's per mole
- Wed Feb 01, 2017 11:20 am
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25413
Re: Quiz 1 Preparation Answers
I know people have already posted how to find work (w) for #3 but what do we do to find heat (q)? I know the problem consists of an ideal gas, change in volume and pressure, etc.. but is it just a modified version of q=nC(delta_T)? From what I was told, for this q=-w so it's just the negative of wh...
- Sun Jan 29, 2017 4:03 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 1 Preparation Answers
- Replies: 130
- Views: 25413
Re: Quiz 1 Preparation Answers
For number 6, I'm a little stuck on which equation to use. Could someone help me with this?
- Sun Jan 22, 2017 8:34 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: 8.31 Monatomic Gas
- Replies: 1
- Views: 392
Re: 8.31 Monatomic Gas
So for an ideal gas your focusing on only one atom. But for a monatomic gas you're focusing on multiple atoms(N) so each of the three directions (x, y, and z) contribute 1/2 kT per molecule, for a total of 3/2NkT per molecule.
Hope thats what you were looking for!
Hope thats what you were looking for!
- Fri Jan 13, 2017 7:26 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Heat Capacity
- Replies: 3
- Views: 728
Re: Heat Capacity
Heat capacity is an extensive property because it depends on the amount of the substance being used such as if 5ml is being used or 10ml. So an intensive property doesn't depend on the amount of substance being used so it doesn't matter if 5ml are being used or 10ml.
- Wed Nov 30, 2016 2:45 pm
- Forum: *Titrations & Titration Calculations
- Topic: Weak base-strong acid
- Replies: 1
- Views: 446
Weak base-strong acid
I'm really lost on where the third reaction comes from when writing the chemical reactions like what we did in class today. Can someone explain to me why its there and how we get it?
- Thu Nov 24, 2016 11:49 am
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: using log
- Replies: 2
- Views: 539
using log
When solving these equations, where does log come from? Why d we use log?
- Tue Nov 15, 2016 10:12 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Kp
- Replies: 6
- Views: 3484
Kp
Do we include solids and liquids in Kp? I know we don't in Kc and am confused about Kp so would just like to clarify.
- Wed Nov 09, 2016 10:23 am
- Forum: Hybridization
- Topic: Hybrid Orbitals
- Replies: 4
- Views: 1289
Re: Hybrid Orbitals
Is it true that all hybridized orbitals have sigma bonds?
- Wed Nov 02, 2016 4:26 pm
- Forum: Hybridization
- Topic: 2014 Midterm Q8
- Replies: 5
- Views: 884
Re: 2014 Midterm Q8
I'm very lost on how to find the hybridization of each lone pair, will this be on the midterm?
- Wed Oct 26, 2016 9:03 am
- Forum: Quantum Numbers and The H-Atom
- Topic: Quantum Numbers and Atomic Orbitals
- Replies: 3
- Views: 816
Re: Quantum Numbers and Atomic Orbitals
So I know what numbers for l correspond with the given n, and I know the possible m1 values for a number l, but how do we find m2? (sorry I feel like I worded this question weird!)
- Wed Oct 19, 2016 6:37 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionization Energy [ENDORSED]
- Replies: 2
- Views: 783
Re: Ionization Energy [ENDORSED]
So if we were to draw a nucleus on the periodic table to show which elements are closer to it in this case, would it go in the upper right corner of the periodic table or the bottom left? (I think I'm thinking too hard about this)
- Wed Oct 12, 2016 9:03 am
- Forum: Hybridization
- Topic: Memorization Tricks
- Replies: 9
- Views: 5341
Re: Memorization Tricks
Does anyone have any tricks for memorizing conversion units? I'm so bad at converting and always forget to convert certain numbers and get them mixed up!
- Wed Oct 05, 2016 9:21 am
- Forum: DeBroglie Equation
- Topic: Neutrons
- Replies: 4
- Views: 1000
Re: Neutrons
Neutrons do diffract when passing through a crystal and exhibit wave-like properties it just depends on the mass of the neutron.
- Wed Sep 28, 2016 10:29 am
- Forum: Significant Figures
- Topic: Easy Way to Calculate Sigfigs
- Replies: 6
- Views: 1530
Re: Easy Way to Calculate Sigfigs
So if a decimal is present, the numbers before it and after it are counted and that's how many are sig figs? Then, if there is no decimal in the number, there is only one sig fig?