Search found 20 matches

by Kaylee Yan 4C
Fri Mar 11, 2016 6:22 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: cis v trans
Replies: 1
Views: 607

cis v trans

how do we determine if the molecule is cis or trans for a cyclohexane
and is there always a cis or trans conformation for a cyclohexane with substituents
by Kaylee Yan 4C
Sat Mar 05, 2016 6:44 pm
Forum: Administrative Questions and Class Announcements
Topic: Video Competition
Replies: 66
Views: 28531

Re: Video Competition

This video was made by Santhosi Samudrala, Tanera Van Diggelen, and Kaylee Yan.
by Kaylee Yan 4C
Fri Mar 04, 2016 6:10 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: cis versus trans
Replies: 2
Views: 607

cis versus trans

how can you tell if a molecule is cis or trans formation? For example if they give you a line structure.
by Kaylee Yan 4C
Fri Feb 26, 2016 6:36 pm
Forum: *Organic Reaction Mechanisms in General
Topic: determine how to draw the arrows
Replies: 1
Views: 468

determine how to draw the arrows

If you are given a reaction mechanism, how do you know how to draw the arrows showing electron movement? I understand that the electrons always move from nucleophiles to electrophiles, but I do not understand how you know which molecule or bond to draw each arrow from and to.
by Kaylee Yan 4C
Sat Feb 20, 2016 9:12 pm
Forum: *Alkanes
Topic: nucleophile v electrophile
Replies: 3
Views: 741

nucleophile v electrophile

what is the difference between nucleophiles and electrophiles and how can you tell which is which?
by Kaylee Yan 4C
Fri Feb 12, 2016 6:59 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: units of k
Replies: 1
Views: 562

units of k

the units of k change depending on the reaction rate, how do you know what the units of k will be?
by Kaylee Yan 4C
Sat Feb 06, 2016 11:24 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: anode and cathode
Replies: 1
Views: 376

anode and cathode

given the half reactions from a table of reduction potentials, how do you know which one is the cathode and which one is the anode? if you assume that the e cell will be positive and name the cathode and anode accordingly is it always the case that the e cell would be positive?
by Kaylee Yan 4C
Fri Jan 29, 2016 7:06 pm
Forum: Balancing Redox Reactions
Topic: determining half reactions
Replies: 1
Views: 517

determining half reactions

how do you know how many electrons, H+, and H20 to add to each side of the half reaction and to which side you add it to? is there a quick way of determining this?
by Kaylee Yan 4C
Fri Jan 22, 2016 11:58 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: enthalpy
Replies: 1
Views: 561

enthalpy

under what conditions does q=delta H?
and how would you use it in an equation?
by Kaylee Yan 4C
Fri Jan 15, 2016 5:34 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: degeneracy
Replies: 3
Views: 835

degeneracy

what is degeneracy and how does it impact a system?
by Kaylee Yan 4C
Sat Jan 09, 2016 6:33 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: most stable form
Replies: 1
Views: 475

most stable form

for the standard enthalpy of formation how do you know which state is the most stable form of each molecule? also what would you do if the molecules are not all in the most stable form? would the math be different in that case?
by Kaylee Yan 4C
Fri Nov 27, 2015 6:42 pm
Forum: Properties of Light
Topic: Video submission quantum world
Replies: 1
Views: 647

Video submission quantum world

chem 14a video.m4v [ 112.1 MiB | Viewed 647 times ]

by Kaylee Yan 4C
Tue Nov 24, 2015 2:19 pm
Forum: Lewis Acids & Bases
Topic: determining lewis acids and bases
Replies: 1
Views: 491

determining lewis acids and bases

in order to determine if a compound is a lewis acid or base, do you need to draw it?
by Kaylee Yan 4C
Thu Nov 12, 2015 4:24 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: chelates
Replies: 1
Views: 530

chelates

how can you tell if something is a chelate from the name or formula?
by Kaylee Yan 4C
Sat Nov 07, 2015 7:10 pm
Forum: Naming
Topic: oxidation and charge
Replies: 1
Views: 540

oxidation and charge

how do we figure out the oxidation number of specific elements and compounds in a ligand?
and how do we know the total charge if they give the name of the ligand?
by Kaylee Yan 4C
Thu Oct 29, 2015 1:05 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: diamagnetism and paramagnetism
Replies: 1
Views: 389

diamagnetism and paramagnetism

is it possible to figure out if something is dia or para magnetic without drawing the MO energy diagram?
by Kaylee Yan 4C
Fri Oct 23, 2015 12:55 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: electron repulsion
Replies: 1
Views: 448

electron repulsion

why do lone pair electrons have the most electron repulsion?
by Kaylee Yan 4C
Sun Oct 18, 2015 4:03 pm
Forum: Ionic & Covalent Bonds
Topic: polarizability
Replies: 2
Views: 715

polarizability

What is the polarizability and polarizing power trend? What impact does that have on bonding?
by Kaylee Yan 4C
Fri Oct 09, 2015 5:52 pm
Forum: Trends in The Periodic Table
Topic: shielding
Replies: 2
Views: 702

shielding

why are electrons having l=2 better at shielding that electrons having l=1?
by Kaylee Yan 4C
Fri Oct 02, 2015 1:41 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Heisenberg delta p and delta x
Replies: 3
Views: 1048

Heisenberg delta p and delta x

for the heisenberg equation do you plug in the +- number into delta x or the spread
ex. 20+-4m=16-24 range so would you put 4 or 8 into delta x

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