Search found 20 matches
- Sat Mar 12, 2016 10:21 am
- Forum: *Free Energy of Activation vs Activation Energy
- Topic: rate constant and Ea
- Replies: 1
- Views: 304
rate constant and Ea
When k the rate constant is increased why does Ea not change?
- Sun Mar 06, 2016 2:25 pm
- Forum: *Electrophiles
- Topic: Why is CO2 an electrophile?
- Replies: 1
- Views: 423
Why is CO2 an electrophile?
Why is CO2 considered an electrophile?
- Mon Feb 29, 2016 10:53 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2016
- Replies: 48
- Views: 19329
Re: Quiz 3 Winter 2016
Do we need to know the information from pages 79-81 in the course reader?
- Sun Feb 28, 2016 11:10 pm
- Forum: *Alkenes
- Topic: Naming alkenes
- Replies: 1
- Views: 326
Naming alkenes
For alkenes does it matter if we write something like 2-pentene instead of pent-2-ene?
4.3
Why is CH4 (propdrawn with a triple bond instead of two carbon carbon double bonds?
- Sun Feb 21, 2016 7:33 pm
- Forum: *Free Energy of Activation vs Activation Energy
- Topic: Whether a reaction will occur at room temperature
- Replies: 2
- Views: 2376
Whether a reaction will occur at room temperature
How do you tell if a reaction will take place at room temperature? I understand that it is low activation energy/small standard enthalpy of activation, but what is the range of these low/small values?
- Sat Feb 20, 2016 11:56 pm
- Forum: *Organic Reaction Mechanisms in General
- Topic: Activated complex theory
- Replies: 1
- Views: 386
Activated complex theory
What is the significance of the activated complex theory for this unit?
- Sun Feb 14, 2016 11:47 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Frequency Factors
- Replies: 2
- Views: 400
Frequency Factors
In the Arrhenius Equation where do you get the values for A, the frequency factors?
- Tue Feb 02, 2016 12:14 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Electrode composition
- Replies: 1
- Views: 282
Electrode composition
Besides copper, what are other common metals electrodes can be made of?
This would be helpful to know when we need to use platinum/graphite in a cell diagram.
This would be helpful to know when we need to use platinum/graphite in a cell diagram.
- Sun Jan 31, 2016 4:45 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Salt bridges/porous discs
- Replies: 1
- Views: 275
Salt bridges/porous discs
Why is it that the salt bridge/porous disc only allows for the exchange of an ion such as SO4 2- and not a metal ion like Cu2+, like the example in the course reader?
- Sun Jan 24, 2016 11:57 pm
- 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: Degeneracy for quiz 1
- Replies: 1
- Views: 321
Degeneracy for quiz 1
What do we need to know about degeneracy for the first quiz? Just to calculate total degeneracy (w1 x w2)? Will will be ever asked to find a value?
- Sun Jan 17, 2016 11:04 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: What it means to be reversible/irreversible process
- Replies: 1
- Views: 265
What it means to be reversible/irreversible process
In an reversible or irreversible process, what exactly is the quality of the process that is able to be (or not to be) reversed?
i.e. why are they called this
i.e. why are they called this
- Fri Jan 08, 2016 1:42 pm
- Forum: Phase Changes & Related Calculations
- Topic: Temperature vs. heat (heat content) vs. energy
- Replies: 1
- Views: 277
Temperature vs. heat (heat content) vs. energy
I understand that temperature and heat are different things but it would help if someone could explain that distinction and how they are related. Does an increase in temperature always lead to an increase in heat content. Or is it the other way around? Also, is energy just another term for heat cont...
- Sun Dec 06, 2015 8:07 pm
- Forum: *Titrations & Titration Calculations
- Topic: Weak acid/strong base titrations with M(OH)2 bases
- Replies: 1
- Views: 449
Weak acid/strong base titrations with M(OH)2 bases
If you were doing a titration with a weak acid and a strong base like Ca(OH)2 (2x OH-), how would your calculations change when you are trying to find the pH of the solution?
- Sun Nov 29, 2015 8:59 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Acid strength-HClO4 vs H3PO4 (HW 12.51d)
- Replies: 2
- Views: 3205
Acid strength-HClO4 vs H3PO4 (HW 12.51d)
HW 12.51 part d
When you compare acids like HClO4 and H3PO4 that differ in multiple ways (number of H atoms, Cl v. P), how do you determine which one is stronger?
When you compare acids like HClO4 and H3PO4 that differ in multiple ways (number of H atoms, Cl v. P), how do you determine which one is stronger?
- Fri Nov 20, 2015 8:41 pm
- Forum: Lewis Acids & Bases
- Topic: BF3 as a lewis acid
- Replies: 1
- Views: 1253
BF3 as a lewis acid
Why is BF3 considered a Lewis acid? Using the definition of Lewis acid we learned in class how is this the case?
- Sun Nov 15, 2015 2:15 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Number of sites a ligand binds
- Replies: 2
- Views: 404
Number of sites a ligand binds
For polydentate ligands, how are you supposed to determine how many binding sites it has? Do you have to draw the lewis structure?
- Sun Nov 01, 2015 11:51 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Cis and trans form of tetrahedral complex
- Replies: 1
- Views: 363
Cis and trans form of tetrahedral complex
Besides structural, what are the differences in between the cis and trans form of a tetrahedral complex?
- Sat Oct 24, 2015 2:04 pm
- Forum: Lewis Structures
- Topic: Expanded Octet
- Replies: 1
- Views: 285
Expanded Octet
What is the maximum number of electrons that could surround any given central atom in a molecule with an expanded octet?
- Thu Oct 01, 2015 8:27 pm
- Forum: Photoelectric Effect
- Topic: Wavelengths of photons
- Replies: 3
- Views: 417
Wavelengths of photons
What are the most common wavelengths of photons that are released when a sample bombarded with electrons?