Search found 20 matches
- Mon Mar 13, 2017 3:11 pm
- Forum: *Cyclopropanes and Cyclobutanes
- Topic: Difference between bond angle strain and steric strain
- Replies: 2
- Views: 1699
Difference between bond angle strain and steric strain
What's the difference between bond angle strain and steric strain?
- Mon Mar 06, 2017 11:04 pm
- Forum: *Organic Reaction Mechanisms in General
- Topic: Pseudo-equilibrium constant
- Replies: 1
- Views: 611
Pseudo-equilibrium constant
What's the significance of the pseudo-equilibrium constant? How would we apply it to a problem?
- Mon Feb 27, 2017 7:31 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Intro to OChem Textbook?
- Replies: 2
- Views: 540
Intro to OChem Textbook?
When should we start bringing the organic chemistry textbook to class (the green one)?
- Mon Feb 20, 2017 10:54 pm
- Forum: General Rate Laws
- Topic: Units of K
- Replies: 4
- Views: 26975
Units of K
Is there an easy way to find the units of different K values for different reaction orders?
- Tue Feb 14, 2017 12:20 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram
- Replies: 11
- Views: 1658
Re: Cell Diagram
the format should be
anode metal | anode ion || cathode ion | cathode metal (or Pt)
anode metal | anode ion || cathode ion | cathode metal (or Pt)
- Mon Feb 06, 2017 1:54 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Fall 2016 Chem 14A Final Exam
- Replies: 1
- Views: 578
Fall 2016 Chem 14A Final Exam
I remember Professor Lavelle saying that the finals from last quarter would be ready for pickup during week 4, but I don't remember where/when exactly. How can I get my final back?
- Wed Feb 01, 2017 4:02 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Units of H, S, G, U, q, and w
- Replies: 1
- Views: 477
Units of H, S, G, U, q, and w
What units should we use for enthalpy, entropy, free energy, heat, and work?
- Mon Jan 23, 2017 11:52 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Entropy? State Function?
- Replies: 2
- Views: 637
Re: Entropy? State Function?
Entropy is a state function, but I'm not quite sure about the rest.
- Thu Jan 19, 2017 12:17 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Calorimeters [ENDORSED]
- Replies: 3
- Views: 756
Calorimeters [ENDORSED]
What's the difference between a regular calorimeter and a bomb calorimeter? Which one do we use in thermochemistry?
- Mon Jan 09, 2017 9:57 pm
- Forum: Administrative Questions and Class Announcements
- Topic: No more quiz workbook?
- Replies: 4
- Views: 956
Re: No more quiz workbook?
I heard that we don't get the quiz drop anymore so maybe that's why there's no workbook anymore? I'm not sure though. The syllabus doesn't say anything about the workbook anymore so I'm assuming we don't use it anymore.
- Tue Nov 29, 2016 2:41 pm
- Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
- Topic: Icebox
- Replies: 4
- Views: 1145
Re: Icebox
I don't think you ever use initial moles instead of initial concentration. However, you can use the moles to find the initial concentration since concentration=moles/volume (C= n/V)
- Tue Nov 22, 2016 1:37 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Higher/lower energy in a MO diagram?
- Replies: 4
- Views: 1282
Higher/lower energy in a MO diagram?
Which atom in a molecule is drawn lower than the other in a MO diagram? How much lower do you draw it?
- Tue Nov 15, 2016 12:34 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: How do you know the charge of an element? [ENDORSED]
- Replies: 1
- Views: 604
How do you know the charge of an element? [ENDORSED]
In [Co(NH3)5Cl]Cl.H20 (pentaamminechlorocobalt(II) chloride dihydrate?)
How do you know that the Cl has a charge of -1? Is it just something you have to remember?
How do you know that the Cl has a charge of -1? Is it just something you have to remember?
- Tue Nov 08, 2016 12:56 am
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Z>8, Z<8
- Replies: 8
- Views: 1470
Re: Z>8, Z<8
what would happen if one atom in a molecule has atomic number greater than 8 and the other has Z less than 8?
- Fri Nov 04, 2016 3:45 pm
- Forum: Lewis Structures
- Topic: Octet rule
- Replies: 7
- Views: 1162
Re: Octet rule
even though the element in the question can have more than the octet, the question asks specifically for the octet
- Mon Oct 24, 2016 5:13 pm
- Forum: Electronegativity
- Topic: Trends in periodic table
- Replies: 6
- Views: 1265
Re: Trends in periodic table
I'm pretty sure it doesn't apply since (as you mentioned) noble gases are stable and nonreactive due to their filled outer shells
- Mon Oct 17, 2016 5:29 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ch 3 #9,11 [ENDORSED]
- Replies: 5
- Views: 1017
Re: Ch 3 #9,11 [ENDORSED]
for these kinds of problems, it's helpful to count the total e-'s this metal M has. for 9a: the element in question is [Ar]3d^7 you know that argon has 18 e- (from periodic table: # e- = atomic #) and then you add 7 more from the 3d^7 18+7= 25 but you can't stop there since the metal M has a +2 char...
- Wed Oct 12, 2016 9:13 pm
- Forum: Trends in The Periodic Table
- Topic: Nitrogen and electron affinity
- Replies: 1
- Views: 831
Nitrogen and electron affinity
I understand why the noble gases find it unfavorable to add more electrons, but why is it that nitrogen also tends not to accept more electrons when it's not a noble gas?
- Mon Oct 03, 2016 12:00 pm
- Forum: Student Social/Study Group
- Topic: Rieber Vista Study Group!
- Replies: 8
- Views: 1707
Re: Rieber Vista Study Group!
I'd like to join too if you're still looking for people!
- Mon Sep 26, 2016 11:45 pm
- Forum: Limiting Reactant Calculations
- Topic: Multiple Limiting Reactants? [ENDORSED]
- Replies: 4
- Views: 3952
Multiple Limiting Reactants? [ENDORSED]
Is it possible for there to be more than one limiting reactant in a reaction?
If so, what are the conditions under which this kind of reaction would occur?
If so, what are the conditions under which this kind of reaction would occur?