Search found 15 matches

by Alex Yee - 4I
Fri Mar 10, 2017 12:24 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalyst
Replies: 16
Views: 1207

Re: Catalyst

Would we ever in this class have to calculate the rate of a reaction with a limited amount of catalyst and much greater amounts of reactant, where the some of the reaction goes without using the catalyst and some of it goes at the faster speed with the catalyst? If not, is this something done in hig...
by Alex Yee - 4I
Sun Mar 05, 2017 10:14 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15489

Re: Quiz 3 Winter 2017

I guess I should really try to be prepared for anything, but how much of the quiz 2 kinetics material will be necessary to work with the kinetics material on quiz 3? I know we won't be tested on quiz 2 material unless it is used to answer a quiz 3 question, but how much of quiz 2 do we need to know ...
by Alex Yee - 4I
Sat Mar 04, 2017 3:04 pm
Forum: *Alkanes
Topic: Substituents
Replies: 4
Views: 337

Re: Substituents

Theoretically, you can add as many substituents as you have hydrogens on a carbon chain, so you could have like 14 methyl substitutes on a C6H14 hydrocarbon chain. This molecule probably does not exist, since the repulsive forces between the hydrogen atoms and the bond angles would be a mess, but as...
by Alex Yee - 4I
Wed Feb 22, 2017 11:52 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Diamond and graphite
Replies: 8
Views: 600

Re: Diamond and graphite

So if I isolate 50g of diamond at STP for 100 trillion years, will any of it form into graphite? I get that the activation energy effectively prevents it from undergoing the reaction (you won't see diamonds turn into graphite in your hands), but does this reaction have a ridiculously long half-life,...
by Alex Yee - 4I
Sun Feb 12, 2017 2:16 am
Forum: Zero Order Reactions
Topic: Not zero, first, or second?
Replies: 4
Views: 481

Re: Not zero, first, or second?

Is there any limit to what the order of a reaction can be? Could you (theoretically) have a reaction of pi order or 2/7 order, or is it just whole numbers and their inverses?
by Alex Yee - 4I
Sat Feb 04, 2017 9:54 am
Forum: Balancing Redox Reactions
Topic: Electrodes
Replies: 2
Views: 236

Re: Electrodes

The electrons flow from the anode to the cathode, flowing through the electrodes. In the case of the silver nitrate battery, the (Ag -> Ag+) anode dissolves into a liquid solution of NO3-, forming the liquid compound AgNO3, while the electrons are sent through the anode to the cathode, and the Ag+ i...
by Alex Yee - 4I
Tue Jan 24, 2017 11:45 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Energy of a Gas?
Replies: 2
Views: 328

Re: Energy of a Gas?

He said in another post that derivations that he does in lecture are unlikely to come up on a test, but fair game. Mostly I would focus on remembering the parts of the formula and knowing when to apply 3/2 or 5/2 based on the problem.
by Alex Yee - 4I
Fri Dec 02, 2016 3:33 pm
Forum: Conjugate Acids & Bases
Topic: Conjugate Acids/Bases Proton Acceptors/Donors
Replies: 1
Views: 320

Conjugate Acids/Bases Proton Acceptors/Donors

Is there a specific way to determine where the proton is accepted or donated when trying to figure out conjugate acids/bases? If I have CH(3)COOH, what determines that the proton connected to the oxygen and not one on the carbon protonates water to form H(3)O+?
by Alex Yee - 4I
Thu Nov 17, 2016 7:01 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: pi 2p bonds or sigma 2p bonds [ENDORSED]
Replies: 3
Views: 600

Re: pi 2p bonds or sigma 2p bonds [ENDORSED]

If Z < 8 the pi bond has lower energy than the sigma bond, but the pi* bond does not change position, correct?
by Alex Yee - 4I
Thu Nov 17, 2016 6:56 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: MO Diagram for HF
Replies: 1
Views: 564

MO Diagram for HF

What does the MO diagram for HF look like? How do you handle having different orbitals bonding in the diagrams?
by Alex Yee - 4I
Tue Nov 15, 2016 9:51 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Stoichiometric Coefficients in Equilibrium [ENDORSED]
Replies: 1
Views: 355

Stoichiometric Coefficients in Equilibrium [ENDORSED]

From a scientific/mathematical perspective, why does a stoichiometric coefficient become the exponent for the concentration? Is there any mathematical reasoning for this, is it an observed/calculated principle, why is this a thing?
by Alex Yee - 4I
Mon Oct 24, 2016 2:01 am
Forum: Electronegativity
Topic: Electronegativity vs Electron Affinity
Replies: 4
Views: 947

Re: Electronegativity vs Electron Affinity

We both got it wrong - I just remembered to fix it on this forum. Electron affinity is the measurable energy released (or absorbed) when an atom takes another electron to become an ion. Electronegativity is the ability of an atom to attract electrons (similar, but not an experimentally derived quant...
by Alex Yee - 4I
Sun Oct 23, 2016 1:22 am
Forum: Electronegativity
Topic: Electronegativity vs Electron Affinity
Replies: 4
Views: 947

Re: Electronegativity vs Electron Affinity

Also note that electronegativity usually correlates with electron affinity, as elements closer to the noble gases generally take more energy to remove an electron as well as attract electrons more powerfully. However - half-full p block elements (group 15) have one electron in each m(sub)l position,...
by Alex Yee - 4I
Wed Oct 05, 2016 9:34 pm
Forum: Student Social/Study Group
Topic: Dykstra Hall Study Group (Fall 2016)
Replies: 25
Views: 1701

Re: Dykstra Hall Study Group (Fall 2016)

Going to see if I can slide in here - Dykstra 5, ajyboyo@gmail.com. Thanks guys!
by Alex Yee - 4I
Wed Sep 28, 2016 11:21 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Balancing Equations
Replies: 3
Views: 598

Re: Balancing Equations

The difference between the states of matter does not matter with balancing chemical equations. It tells you critical information about density, if molarity is a concern (dilutions), and other information that could be relevant to a more complex question, but in balancing equations, you just need to ...

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