Search found 16 matches
- Sun Mar 06, 2016 10:14 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3642727
Re: Chemistry Jokes
to all the Futurama fans out there!!
- Mon Feb 29, 2016 7:02 pm
- Forum: *Alkanes
- Topic: Quiz 3 Preparation
- Replies: 34
- Views: 13001
Re: Quiz 3 Preparation
Is 3-Bromo-1Iodocyclohexane wrong for number five then?
- Wed Feb 24, 2016 10:18 pm
- Forum: *Alkanes
- Topic: Substituent question
- Replies: 1
- Views: 607
Substituent question
If the substituent has the same number, what happens?
I know in the course reader it says "the 1st named group gets lower number" but what does that mean? Can someone provide an example please?
I know in the course reader it says "the 1st named group gets lower number" but what does that mean? Can someone provide an example please?
- Sun Feb 21, 2016 9:47 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3642727
Re: Chemistry Jokes
Why does hamburger have less energy than steak?
It’s in the ground state.
It’s in the ground state.
- Tue Feb 16, 2016 1:30 pm
- Forum: Second Order Reactions
- Topic: reaction rate and rate constant
- Replies: 1
- Views: 440
reaction rate and rate constant
Hi guys,
what's the difference between reaction rate and rate constant, if any?
what's the difference between reaction rate and rate constant, if any?
- Mon Feb 08, 2016 8:45 am
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Entropy and multiplicity
- Replies: 1
- Views: 731
Entropy and multiplicity
When solving for entropy, when do you use (to find W) 2^N and N!/n1!n2! ?
Thanks!
Thanks!
- Sat Jan 30, 2016 7:55 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3642727
Re: Chemistry Jokes
Joke: “What is the difference between thermodynamics and a stick?
Answer: “A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.”
Answer: “A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.”
- Sat Jan 23, 2016 11:50 pm
- Forum: Calculating Work of Expansion
- Topic: Reversible Reactions question
- Replies: 1
- Views: 418
Reversible Reactions question
Hi, does a reversible reaction always do more work than an irreversible reaction? If so, why? and if not, then when does an irreversible reaction do more work?
- Sun Jan 17, 2016 3:03 am
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Heat Capacity
- Replies: 2
- Views: 858
Re: Heat Capacity
Hi! As Elizabeth said above, solving for heat capacity is very different since each problem varies upon what details it gives you. To better explain, since I don't want to chop up the words, http://chemwiki.ucdavis.edu/Physical_Chemistry/Thermodynamics/Calorimetry/Heat_Capacity"onclick="window.open(...
- Sun Jan 10, 2016 4:42 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Question regarding Enthalpy
- Replies: 2
- Views: 1817
Question regarding Enthalpy
Is it true that the delta H value for the forward reaction is negative the delta H value for the reverse reaction?
If so, please explain why this is true.
If so, please explain why this is true.
- Sun Nov 29, 2015 6:47 pm
- Forum: Naming
- Topic: Video: Naming Coordination Compounds
- Replies: 4
- Views: 1056
Video: Naming Coordination Compounds
CECILIA TSAI 1C
MEERA RAO 3E
NAMITA RAGHAVAN 4D
MEERA RAO 3E
NAMITA RAGHAVAN 4D
- Mon Nov 02, 2015 10:56 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: When Z greater than or equal to 8 and Z<8 clarification
- Replies: 1
- Views: 3362
When Z greater than or equal to 8 and Z<8 clarification
Hi all, I'm confused as to what Z is... and how the MO diagram looks when Z is greater than or equal to 8, and Z is less than 8. So my question is, what is Z? If you have a molecule like CO, then what Z would you use to figure out what diagram to use? For z<8, then sigma is above pi and z> or equal ...
- Wed Oct 28, 2015 10:55 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Confusion between molecular geometry?
- Replies: 2
- Views: 680
Confusion between molecular geometry?
Hi, I memorized the shapes and its names, however on the review questions for the quiz that were posted, we were asked to name the ESG and MG? What is the difference between the two and will we be expected to know both for the quiz/midterm?
Thanks :)
Thanks :)
- Tue Oct 20, 2015 6:56 pm
- Forum: Photoelectric Effect
- Topic: Help with Chem Problem!
- Replies: 4
- Views: 2796
Re: Help with Chem Problem!
she is also in 14a, but with Scerri and we were studying together
- Tue Oct 20, 2015 6:23 pm
- Forum: Photoelectric Effect
- Topic: Help with Chem Problem!
- Replies: 4
- Views: 2796
Help with Chem Problem!
A friend asked me to help her with a chemistry problem, but I'm not sure how to do it.
Which of the following metals requires UV light to exhibit the photoelectric effect?
a) Cs, Work function= 1.95 eV
b) Ag, Work function= 4.74 eV
c) K, Work function= 2.29 eV
d) Y, Work function= 2.90 eV
Which of the following metals requires UV light to exhibit the photoelectric effect?
a) Cs, Work function= 1.95 eV
b) Ag, Work function= 4.74 eV
c) K, Work function= 2.29 eV
d) Y, Work function= 2.90 eV
- Sun Oct 11, 2015 10:52 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Please help with homework 1.44
- Replies: 1
- Views: 2350
Please help with homework 1.44
The question in case you were wondering is:
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed is known to within +/- 5.0 m/s.
Thank you in advanced.
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed is known to within +/- 5.0 m/s.
Thank you in advanced.