Search found 15 matches
- Fri Mar 11, 2016 8:23 pm
- Forum: *Cycloalkanes
- Topic: Cis/Trans on Cycloalkanes
- Replies: 1
- Views: 424
Cis/Trans on Cycloalkanes
Is there always cis/trans when naming cycloalkanes and, if so, can we only use cis/trans or can we use E/Z as well?
- Sun Mar 06, 2016 3:42 pm
- Forum: *Calculations Using ΔG° = -RT ln K
- Topic: Gas Constant
- Replies: 1
- Views: 760
Gas Constant
Is the gas constant in calories, 1.987 cal/Kxmol, always given or do we have to solve for it using 4.18 J = 1 cal?
- Sun Feb 28, 2016 7:48 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius Equation
- Replies: 1
- Views: 270
Arrhenius Equation
What does the constant A stand for in the Arrhenius Equation?
- Sun Feb 21, 2016 7:09 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: pg. 78 of course reader
- Replies: 1
- Views: 301
pg. 78 of course reader
On page 78 of the course reader, the TA stated during lecture that in a homogenous catalyst reaction, the NO will disappear and reappear in the reaction. What does she mean by this? I am confused because if you make that statement, don't the intermediates NO2 and O disappear and reappear?
- Fri Feb 05, 2016 11:43 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: 14.37
- Replies: 1
- Views: 386
14.37
For part c, why does the Solutions Manual treat Cl2 --> Cl- as an oxidation reaction? In the cell diagram it is shown as a reduction reaction.
- Sun Jan 31, 2016 3:31 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Redox Reaction (Anode/Cathode Diagram)
- Replies: 1
- Views: 254
Redox Reaction (Anode/Cathode Diagram)
From lecture on 1/27/16: How does an opening in the electrode affect the transferring of electrons and how does it affect the reaction as a whole?
- Mon Jan 25, 2016 5:18 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Entropy Calculations (9.1)
- Replies: 5
- Views: 2166
Entropy Calculations (9.1)
When do you use a negative value for q when calculating entropy? In the solutions for question 9.1, it states that q is negative. Why is this?
- Mon Jan 25, 2016 11:07 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Reverse vs Forward Reaction
- Replies: 1
- Views: 359
Reverse vs Forward Reaction
Why is the forward process favored in the gas phase only and why is the reverse process favored in the liquid phase only? (In Reference to Pg. 41 of Course Reader).
- Sun Jan 17, 2016 3:23 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Calculating Work
- Replies: 1
- Views: 314
Calculating Work
Hi,
I wanted to know why it is necessary to convert Torr into atm and mL to L when calculating work. Also, are we given the conversion factors/rates from Torr to atm?
I wanted to know why it is necessary to convert Torr into atm and mL to L when calculating work. Also, are we given the conversion factors/rates from Torr to atm?
- Sun Dec 06, 2015 11:49 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Final Exam Fall 2012 #8
- Replies: 1
- Views: 706
Final Exam Fall 2012 #8
Question: An approximation to finding the pH of a solution containing a polyprotic acid is to treat each step independently and add the [H+] generated at each step. Using this apprximation find the pH of a 0.0037 M solution of H2CO3 using the given equations: H2CO3 -> H+ + HCO3- Ka1 = 4.3 x 10^-7 HC...
- Sun Nov 29, 2015 11:17 pm
- Forum: Lewis Acids & Bases
- Topic: determining lewis acids and bases
- Replies: 2
- Views: 404
determining lewis acids and bases
Do you have to draw out the lewis structure to determine if a compound is an acid or a base?
- Sun Nov 29, 2015 11:00 pm
- Forum: Amphoteric Compounds
- Topic: How to tell something is amphoteric?
- Replies: 4
- Views: 1972
Re: How to tell something is amphoteric?
If the compound has both basic and acidic character then it will be amphoteric.
- Sun Nov 15, 2015 12:16 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Endo vs. Exothermic
- Replies: 6
- Views: 3927
Re: Endo vs. Exothermic
Hi,
I have a question regarding these reactions. Is there a way to deduce endothermic vs. exothermic reactions if you're not given the change in heat value?
Thanks!
I have a question regarding these reactions. Is there a way to deduce endothermic vs. exothermic reactions if you're not given the change in heat value?
Thanks!
- Wed Oct 28, 2015 11:43 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Molecular Geometry
- Replies: 1
- Views: 307
Molecular Geometry
Hi! I was wondering if the molecular shape bent and angular are the same thing? Also, why aren't these two shapes in the course reader notes?
- Thu Oct 01, 2015 2:43 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: atomic emission vs atomic absorbtion
- Replies: 4
- Views: 674
Re: atomic emission vs atomic absorbtion
I am a bit confused on whether the spectrum shows the wavelength or whether it shows the frequency emitted by the gas sample.