Search found 16 matches

by JaeHoCho1B
Sat Mar 04, 2017 5:44 pm
Forum: *Electrophiles
Topic: Electrophilic Addition
Replies: 1
Views: 620

Electrophilic Addition

Hello! I was wondering for electrophilic additions that do we add like the specific elements to where the double bonds are?
by JaeHoCho1B
Sat Feb 25, 2017 2:36 pm
Forum: *Organic Reaction Mechanisms in General
Topic: How does Reaction Mechanism in more detail?
Replies: 1
Views: 341

How does Reaction Mechanism in more detail?

Hello! Could anyone explain to me on pg 84 of the Course Reader on how the reaction mechanism works and how to approach them? Thank you so much for your help!
by JaeHoCho1B
Mon Feb 20, 2017 5:52 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2
Replies: 3
Views: 493

Re: Quiz 2

I thought enzymes weren't going to be tested since it was after 15.10, bur question #9 asks us about enzymes. So do we still answer question #9?
by JaeHoCho1B
Mon Feb 20, 2017 5:48 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Quiz 2 #9 and #10
Replies: 3
Views: 414

Quiz 2 #9 and #10

Can anyone please explain question 9 and 10 for quiz 2? I am having a hard time understanding these questions.
by JaeHoCho1B
Mon Feb 20, 2017 3:25 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: The Units of k (rate constant) for second order
Replies: 2
Views: 640

Re: The Units of k (rate constant) for second order

It is going to be that since the initial rate is measured in M/S while the [A]^2 is in M^2. So as a result, k has to be 1/(M)(s).
by JaeHoCho1B
Mon Feb 20, 2017 12:14 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2
Replies: 3
Views: 493

Quiz 2

Hello! Since we are tested up to pg 73 in our course reader, do we have to know Collision Theory, Transition State Theory, Catalysis, and Living Catalysts: Enzyme? which are last five sections from the textbook. Thanks for the help!
by JaeHoCho1B
Sat Feb 18, 2017 11:07 pm
Forum: Zero Order Reactions
Topic: Know Which Order It Is [ENDORSED]
Replies: 2
Views: 438

Know Which Order It Is [ENDORSED]

Hello! I was wandering how can we tell what kind of order the reaction is based off the rate? Thank you so much for your help!
by JaeHoCho1B
Sun Feb 12, 2017 8:54 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Homework help 14.11 [ENDORSED]
Replies: 5
Views: 801

Re: Homework help 14.11 [ENDORSED]

When we are solving these questions, will be given the the standard potential on the exam?
by JaeHoCho1B
Sat Feb 11, 2017 10:28 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Standard Cell Potential [ENDORSED]
Replies: 1
Views: 281

Standard Cell Potential [ENDORSED]

Hello! For Question 8 for Midterm 2013 pg. 135, the question is about knowing how to read the cell notation. I know how to solve this, but the question doesn't give us the "given standard cell potential." So on a question like a cell notation, will we be given an initial standard cell pote...
by JaeHoCho1B
Sat Feb 04, 2017 9:02 pm
Forum: Balancing Redox Reactions
Topic: Oxidation/Reduction Method
Replies: 1
Views: 247

Oxidation/Reduction Method

Hello! I had two questions for the oxidation/reduction method: 1. When we take account the oxidation/reduction method, how do we know when to use both the acidic and basic method? 2. Do we have to know all the charges for every element besides the elements in Group 1A, Group 2A, and Group 8A since t...
by JaeHoCho1B
Sat Jan 28, 2017 10:33 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Molar Heat Capacities
Replies: 2
Views: 369

Re: Molar Heat Capacities

I saw on the video on this and said that the ones with the most atoms will have the higher molar capacity.
by JaeHoCho1B
Sat Jan 28, 2017 9:05 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Work ( regarding internal energy)
Replies: 1
Views: 249

Re: Work ( regarding internal energy)

Work is negative when it's "done by the system" and not "done by its surroundings."
by JaeHoCho1B
Sat Jan 28, 2017 6:26 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Quiz #1 Preparation #12
Replies: 1
Views: 337

Quiz #1 Preparation #12

Hello! I was wandering for quiz preparation quiz 12 on page 116 that are we supposed to use the following equation? delta G= delta H - T(Delta S). If yes, do we add all up the given delta H and subtract with the given Temperature times the sum of delta S. **Sorry I can't post chart, but the question...
by JaeHoCho1B
Sun Jan 22, 2017 7:09 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Second Thermodynamics? [ENDORSED]
Replies: 2
Views: 339

Re: Second Thermodynamics? [ENDORSED]

Thank you so much for your help! Much clearer now!
by JaeHoCho1B
Sun Jan 22, 2017 6:54 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Second Thermodynamics? [ENDORSED]
Replies: 2
Views: 339

Second Thermodynamics? [ENDORSED]

Hello classmates! How do we know when we are able to use first or second thermodyanimcs on a problem or on a quiz problem? Thank you for your time!
by JaeHoCho1B
Sat Jan 14, 2017 7:10 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Don't understand bond enthalpy
Replies: 4
Views: 538

Don't understand bond enthalpy

Hello classmates! I'm very confused on how and when bond enthalpy is used. In addition, I was confused on the example that Dr. Lavelle gave us in our lecture. If anyone can clarify it for me, it will be grateful.

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