Search found 25 matches

by 204635822
Sat Mar 12, 2016 7:05 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Conformations on the final
Replies: 1
Views: 199

Conformations on the final

what conformations will we have to draw on the final? Is it just chair, or should we also know boat, twist boat, butterfly, envelope?
by 204635822
Sat Mar 05, 2016 5:57 pm
Forum: *Haloalkanes
Topic: Functional Groups [ENDORSED]
Replies: 7
Views: 1069

Functional Groups [ENDORSED]

Are we responsible for knowing all functional groups on page 46, or just the ones we talked about during lecture?
by 204635822
Thu Mar 03, 2016 6:20 pm
Forum: *Alkanes
Topic: Naming: methyl vs methly propyl
Replies: 1
Views: 196

Naming: methyl vs methly propyl

If we have 2 substituents, methyl and methlypropyl, shouldnt methyl come first. In the textbook (page )they put methylpropyl before methyl, but in OH, the UAs have been saying otherwise.
by 204635822
Thu Mar 03, 2016 1:53 pm
Forum: *Alkanes
Topic: Condensed Structural formula vs substituents
Replies: 1
Views: 173

Condensed Structural formula vs substituents

How can I tell whether the compound in the parentheses is a substituent, or if it is just the condensed structural formula?
by 204635822
Thu Mar 03, 2016 11:19 am
Forum: *Free Energy of Activation vs Activation Energy
Topic: When will a reaction occur at room temp?
Replies: 1
Views: 306

When will a reaction occur at room temp?

In the intro to ochem book, on pg 154, it says that a rxn will occur at room temp if Ea>80kj/mol and wont occur at room temp is Ea<80kj/mol. In the graphs, however, it does not always state numbers for Ea, so how do we know when a reaction occurs at room temp?
by 204635822
Wed Mar 02, 2016 8:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2016
Replies: 48
Views: 18663

Re: Quiz 3 Winter 2016

Do we have to know the names of nucleophiles like Azide or thiosulfate, or do we just have to recognize that they are nucleophiles due to lone pair electrons?
by 204635822
Wed Mar 02, 2016 7:46 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2016
Replies: 48
Views: 18663

Re: Quiz 3 Winter 2016

Some of the TAs/UAs say that halogens are put in alphabetical order while others say that halogens are named by mass. Which is correct?
by 204635822
Sat Feb 27, 2016 2:38 pm
Forum: *Alkanes
Topic: Source of electrons
Replies: 2
Views: 225

Source of electrons

How do I know whether the source of the electrons is the bond or the atom when drawing arrows
by 204635822
Sat Feb 27, 2016 1:55 pm
Forum: *Alkanes
Topic: Structural formulas
Replies: 1
Views: 130

Structural formulas

How can i make sure that I named all the different structural formulas and didnt just name a constitutional isomer twice?
by 204635822
Sat Feb 27, 2016 1:53 pm
Forum: *Alkanes
Topic: Double headed vs single headed arrow
Replies: 1
Views: 258

Double headed vs single headed arrow

What is the difference between the double headed and the single headed arrow?
by 204635822
Fri Feb 19, 2016 10:33 am
Forum: Administrative Questions and Class Announcements
Topic: Midterm Curve
Replies: 1
Views: 323

Midterm Curve

Will the midterms be curved?
by 204635822
Wed Feb 17, 2016 11:04 pm
Forum: General Rate Laws
Topic: Rate = k[A][B] vs rate = -1/a d[A]/dt
Replies: 2
Views: 342

Rate = k[A][B] vs rate = -1/a d[A]/dt

What is the difference between the two equations. Rate = k[A][B] vs rate = -1/a d[A]/dt. I understand that the second one means that reactants go down as reaction progresses because they are used up, but do we ever use that to solve any problems, or is it more of a conceptual thing?
by 204635822
Sat Feb 13, 2016 5:21 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2016
Replies: 18
Views: 6923

Re: Quiz 2 Winter 2016

Which textbook problems should we do in preparation for the quiz since we didnt finish all of Ch 15?
by 204635822
Wed Feb 10, 2016 9:47 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Topics
Replies: 4
Views: 512

Quiz 2 Topics

What will be on quiz 2? Is it cumulative or just on kinetics?
by 204635822
Tue Feb 09, 2016 5:14 pm
Forum: Phase Changes & Related Calculations
Topic: Winter 2015 Midterm 2a
Replies: 2
Views: 336

Re: Winter 2015 Midterm 2a

Thank you so much. I was trying to calculate nrt, not the change of each
by 204635822
Tue Feb 09, 2016 12:43 pm
Forum: Phase Changes & Related Calculations
Topic: Winter 2015 Midterm 2a
Replies: 2
Views: 336

Winter 2015 Midterm 2a

On question 2a on the winter 2015 midterm,the question says "the reaction between gaseous iodoethane and water vapor generates ethanol and HI. Assume the rxn happens under constant pressure, 1atm, and 25 C. 36 g of h2o is converted to ethanol and HI gas. V1=20L. internal energy = 84KJ" I d...
by 204635822
Tue Feb 09, 2016 10:28 am
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Standard cell potential vs cell potential
Replies: 3
Views: 590

Standard cell potential vs cell potential

I am unsure when to find E and when to find Enot. Sometimes the problem asks for potential difference, but expects you to use Enot although it did not say standard.
by 204635822
Mon Feb 08, 2016 9:15 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Question 2B winter 2011 midterm
Replies: 1
Views: 207

Question 2B winter 2011 midterm

I dont understand the answer to this question. The question says, "Container A is filled with 1.0 moles of the atoms of an ideal monatomic gas. container B, also a gas, has 1.0 does of atoms bound together as diatomic molecules that are mot vibrationally active. Container C, also a gas, has 1.0...
by 204635822
Thu Feb 04, 2016 1:18 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Standard Reduction Potential Calculations
Replies: 1
Views: 183

Standard Reduction Potential Calculations

Since the standard reduction potential is always written as reduction, do we multiply by -1 if it is an oxidation half reaction?
by 204635822
Thu Jan 28, 2016 4:09 pm
Forum: Phase Changes & Related Calculations
Topic: Heat curve problem 1 in page 10 of workbook
Replies: 4
Views: 432

Heat curve problem 1 in page 10 of workbook

Isnt the heat capacity of a liquid greater than that of a solid? SO shouldnt the answet to #1 on pg 10 of workbook supposed to be B?
by 204635822
Thu Jan 28, 2016 11:40 am
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Useful Summary of Thermodynamic Definitions
Replies: 23
Views: 13456

Re: Useful Summary of Thermodynamic Definitions

chrispolo15 wrote:can someone elaborate on state functions? i'm still kind of confused. are they dependent or dependent?


For a state property, you only need to know initial and final values. The pathway is not important.
by 204635822
Mon Jan 25, 2016 1:18 pm
Forum: Phase Changes & Related Calculations
Topic: Boltzmann Equation
Replies: 1
Views: 231

Boltzmann Equation

Can someone please explain the Boltzmann equation for me. Where do we get those values for W Kb and S?
by 204635822
Sun Jan 17, 2016 12:37 pm
Forum: Phase Changes & Related Calculations
Topic: Temperature as a state property?
Replies: 2
Views: 354

Temperature as a state property?

In lecture Dr. Lavelle said that temperature can be a state property because you can calculate the change in temperature without knowing how the heat changes. Then he said that heat is not always a state property. So is temperature a state property or not?
by 204635822
Sun Jan 10, 2016 7:00 pm
Forum: Phase Changes & Related Calculations
Topic: Steam
Replies: 2
Views: 225

Steam

How can you use the diagram to prove that steam causes severe burns?

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