Search found 12 matches

by Madison_Haneke_2K
Thu Mar 10, 2016 3:14 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Strains
Replies: 5
Views: 748

Re: Strains

With ring strain, I think you're talking about bond angle strain.. that's when you have to force the carbons to connect at a smaller bond angle than it wants, so you have strain from that. I think of steric strain as atoms/ electrons getting smashed together and bumping into each other, and torsiona...
by Madison_Haneke_2K
Thu Mar 10, 2016 3:10 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Gauche Conformation
Replies: 2
Views: 463

Re: Gauche Conformation

I think so- in office hours, we talked about how it's more about what happens to the torsional and steric strain that determines the gauche confirmation. If it went -60 degrees on a butane for example, you would alleviate a lot of steric strain, but still have some torsional and steric strain: it wo...
by Madison_Haneke_2K
Thu Mar 10, 2016 3:06 pm
Forum: *Alkynes
Topic: Triple Bonds and Function Groups
Replies: 2
Views: 783

Re: Triple Bonds and Function Groups

As far as I can tell, functional groups have priority over everything. But like Bryan said, you wouldn't consider halides to be functional groups when you're numbering (if there was a double bond and a chlorine, you would favor the double bond). I think about halides as substituents for the most par...
by Madison_Haneke_2K
Thu Mar 10, 2016 2:57 pm
Forum: *Cycloalkanes
Topic: Naming cycloalkanes
Replies: 2
Views: 672

Re: Naming cycloalkanes

Your main goal with numbering Carbons is to have the lowest number.. the differences come with what you want to have a lower number (you want a double bond to have the lowest number possible if there are only substituents present, functional groups need the lowest number possible in most cases when ...
by Madison_Haneke_2K
Thu Feb 18, 2016 4:02 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-Equilibrium vs Rate-Determining Step?
Replies: 1
Views: 510

Pre-Equilibrium vs Rate-Determining Step?

Hi, So it seems to me like there are two separate methods we use to determine the rate law from looking at proposed mechanisms: the pre-equilibrium approach and the approach using a rate-determining step. I've been thinking that it has to do with which step in the mechanism is the slow one.. is that...
by Madison_Haneke_2K
Sat Feb 13, 2016 2:27 pm
Forum: Second Order Reactions
Topic: Second-Order Half-Life Calculations
Replies: 1
Views: 328

Second-Order Half-Life Calculations

In the textbook it says that the half-lives of second and zero order reactions aren't really used. Will we have to know how to do calculations for second and zero order half-lives anyway since we covered it in lecture a little bit?
by Madison_Haneke_2K
Sun Feb 07, 2016 1:34 pm
Forum: Balancing Redox Reactions
Topic: Working with Single Diatomic Molecules (14.5B)
Replies: 2
Views: 441

Working with Single Diatomic Molecules (14.5B)

Hey! So my question comes mostly from doing the homeworks and I'm wondering if there's a specific procedure we should do every time when our only reactant in a redox reaction is a single diatomic molecule like Cl2 or Br2.. do we duplicate the reaction to have two separate molecules to work with for ...
by Madison_Haneke_2K
Sat Jan 23, 2016 11:40 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Isolated vs Isothermal
Replies: 3
Views: 1111

Isolated vs Isothermal

I've been confused about the similarities and differences in properties of isolated systems and isothermal systems. What is the difference, and are they usually related? (ie. I think most isolated systems are also isothermal?). Additionally, how do their properties differ and therefore make our calc...
by Madison_Haneke_2K
Mon Jan 18, 2016 12:29 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Isothermal Reactions
Replies: 4
Views: 565

Re: Isothermal Reactions

In an isothermal reaction, the reaction is completed but it neither releases nor absorbs heat, so the ∆T is 0 :)
by Madison_Haneke_2K
Mon Nov 30, 2015 11:49 pm
Forum: Naming
Topic: CoordinationCompoundNamingPracticeVideo- Steverlynck&Haneke
Replies: 1
Views: 2509

CoordinationCompoundNamingPracticeVideo- Steverlynck&Haneke

This is my post for our video that we posted yesterday, I wanted to post it quickly since we didn't realize I had to post the video as well, so it isn't flipped right side up again. Sorry about that!!!

Madison Haneke- 904562474- Discussion 4K- TA Erick Harr
made with Pascale Steverlynck
by Madison_Haneke_2K
Mon Oct 26, 2015 10:20 pm
Forum: Empirical & Molecular Formulas
Topic: Radical Molecule
Replies: 2
Views: 566

Radical Molecule

When you have a molecule with unpaired electrons, how do you determine which atom has the spare, unpaired electron?
by Madison_Haneke_2K
Sun Oct 04, 2015 9:14 pm
Forum: DeBroglie Equation
Topic: DeBroglie Equation
Replies: 1
Views: 308

Re: DeBroglie Equation

The way I think about it, an electron or baseball or whatever moves in something like a sine or cosine curve-- when it's in motion, it goes up and down by some amplitude and if its a small enough particle, the wavelength can be determined. If it's at rest, it isn't moving in the sine curve, so DeBro...

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