Search found 30 matches

by Madeline Lequang 1G
Wed Dec 05, 2018 9:13 pm
Forum: Naming
Topic: Oxidation number
Replies: 2
Views: 66

Re: Oxidation number

You said to draw out the lewis structure to help determine the charges for oxidation numbers, but I still don't understand how that helps.
by Madeline Lequang 1G
Wed Dec 05, 2018 9:08 pm
Forum: Identifying Acidic & Basic Salts
Topic: equilibrium constant
Replies: 2
Views: 65

equilibrium constant

Are we going to need to know how to calculate the equilibrium constant for the final?
by Madeline Lequang 1G
Sun Dec 02, 2018 3:02 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Oxidation State
Replies: 2
Views: 51

Oxidation State

What's are some tips for determining oxidation numbers and finding out the overall oxidation state of a compound?
by Madeline Lequang 1G
Thu Nov 29, 2018 9:49 am
Forum: Dipole Moments
Topic: intermolecular forces
Replies: 1
Views: 65

intermolecular forces

How can I determine if there is a dipole-dipole or dipole induced dipole? Do we just have to know if the compound is polar?
by Madeline Lequang 1G
Thu Nov 29, 2018 9:36 am
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: ordering
Replies: 2
Views: 161

ordering

Does anybody know a fool proof way of ordering cations and anions according to their polarizability and their polarizing power? My TA said that for cations we can determine it thoughh the atomic radii then the charges, but which one takes precedence? And for anions do we need to focus on the charges...
by Madeline Lequang 1G
Thu Nov 29, 2018 9:33 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Resonance structure
Replies: 1
Views: 63

Resonance structure

When making a VSEPR, is really that important that we get the corrext resonance? I know that it shows it as the most stable structure, but aren't double and triple bonds just treated as one region of electron denisty?
by Madeline Lequang 1G
Sat Nov 24, 2018 1:27 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: polarity
Replies: 3
Views: 82

polarity

If a structure is symmetric is it possible for it to be polar? or will they always be nonpolar?
by Madeline Lequang 1G
Wed Nov 21, 2018 10:44 am
Forum: Hybridization
Topic: Sp3
Replies: 2
Views: 63

Sp3

why do we only use up to sp3 when there are 6 p orbitals?
by Madeline Lequang 1G
Tue Nov 20, 2018 5:52 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Test 3
Replies: 10
Views: 214

Test 3

For test 3 will we only be tested on stuff from outline 4? or outline 3 as well?
by Madeline Lequang 1G
Thu Nov 15, 2018 9:12 am
Forum: Determining Molecular Shape (VSEPR)
Topic: The difference between placing lone pairs in certain positions?
Replies: 3
Views: 70

Re: The difference between placing lone pairs in certain positions?

My TA went over this today and basically he said that a safe rule is for the 5th domain (like see-saw and t-shaped) you place lone pairs in the equatorial, and for the 6th domain (square pyramidal and square planar) you place them in the axial.
by Madeline Lequang 1G
Wed Nov 14, 2018 1:15 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm
Replies: 4
Views: 198

Re: Midterm

Dr. Lavelle said he posted the solutions to the midterm, but I can't seem to find it. Could somebody please link it
by Madeline Lequang 1G
Wed Nov 14, 2018 1:09 pm
Forum: Student Social/Study Group
Topic: curve?
Replies: 20
Views: 834

Re: curve?

so if like we get a 65% what grade would that be since a 50% is a C for the final grade?
by Madeline Lequang 1G
Fri Nov 09, 2018 10:22 am
Forum: SI Units, Unit Conversions
Topic: Angstrom
Replies: 5
Views: 296

Angstrom

Is angstrom an si unit? Dr. Lavelle uses it often
by Madeline Lequang 1G
Fri Nov 09, 2018 10:13 am
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Boiling point
Replies: 12
Views: 238

Boiling point

What did he mean in lecture today by a rod shaped boiling point and a spherical boiling point in his example today?
by Madeline Lequang 1G
Mon Nov 05, 2018 10:30 pm
Forum: Resonance Structures
Topic: Bond Lengths
Replies: 7
Views: 176

Re: Bond Lengths

What does it mean for the bong length to be 120 pm and 140pm, or 124 pm like you said? I really had trouble with that question.
by Madeline Lequang 1G
Fri Nov 02, 2018 4:53 pm
Forum: Photoelectric Effect
Topic: Kinetic energy
Replies: 11
Views: 2149

Kinetic energy

Does the formula (1/2)mv^2 only apply to kinetic energy? or can it be used for other types of energy?
by Madeline Lequang 1G
Wed Oct 31, 2018 2:44 pm
Forum: Octet Exceptions
Topic: Radical Compounds
Replies: 1
Views: 85

Radical Compounds

Can somebody please explain in what context there would be a radical compound? Dr. Lavelle gave the examples of DNA and food supplements, but I still don't understand how it relates to them.
by Madeline Lequang 1G
Tue Oct 30, 2018 6:40 pm
Forum: Trends in The Periodic Table
Topic: Diagonal Orbitals
Replies: 1
Views: 74

Diagonal Orbitals

Today at the first review session, Gail kind of made this chart where she put the energy levels, put the corresponding orbitals next to it in a row, and then proceeded to draw diagonal arrows. I don't really understand what that meant, so could somebody explain it again please?
by Madeline Lequang 1G
Tue Oct 23, 2018 1:44 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: differences in equation
Replies: 2
Views: 71

Re: differences in equation

wow I didn't even notice that! it makes such a difference thank you
by Madeline Lequang 1G
Tue Oct 23, 2018 12:42 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: differences in equation
Replies: 2
Views: 71

differences in equation

Why does the equation in the textbook say delta(p)delta(x)=h/2, but in the lecture notes, Dr. Lavelle uses h/4pi? Is there a difference? Which should I use?
by Madeline Lequang 1G
Tue Oct 23, 2018 9:54 am
Forum: Administrative Questions and Class Announcements
Topic: test 2
Replies: 5
Views: 238

test 2

Will test 2 also include stuff that we were tested on in test 1?
by Madeline Lequang 1G
Fri Oct 19, 2018 2:47 pm
Forum: DeBroglie Equation
Topic: Wavelength unit conversion
Replies: 4
Views: 83

Re: Wavelength unit conversion

What's the ratio of kg in a joule for the conversion?
by Madeline Lequang 1G
Tue Oct 16, 2018 5:19 pm
Forum: Properties of Light
Topic: Week 3 HW
Replies: 5
Views: 140

Re: Week 3 HW

I kind of forgot which problems that I turned in last week and don't want to risk turning in some of the same ones.
by Madeline Lequang 1G
Tue Oct 16, 2018 10:28 am
Forum: Properties of Light
Topic: Week 3 HW
Replies: 5
Views: 140

Week 3 HW

So for this week do we just turn in another 7 problems from the quantum world section? And we can pick from either chapter 1 or 2?
by Madeline Lequang 1G
Sat Oct 13, 2018 11:38 am
Forum: Properties of Light
Topic: Grades
Replies: 2
Views: 71

Grades

Where will we be able to view our grades? I know that usually we would look on ccle, but since it links to his website there isn't really an option to view grades. Does that mean we won't know our final grade until the end of the quarter?
by Madeline Lequang 1G
Sat Oct 13, 2018 11:37 am
Forum: Limiting Reactant Calculations
Topic: Test 1
Replies: 5
Views: 293

Test 1

Does anyone know when we'll be getting the test back? Will it be in the next time we meet for discussion?
by Madeline Lequang 1G
Wed Oct 10, 2018 1:38 pm
Forum: Limiting Reactant Calculations
Topic: Test 1
Replies: 3
Views: 182

Test 1

Did anyone end up running out of time while taking the test? I feel like I'll be able to do the problems, but I tend to take a bit more time than I've seen other people complete them. I'm really worried about taking too long on each.
by Madeline Lequang 1G
Thu Oct 04, 2018 9:52 am
Forum: Empirical & Molecular Formulas
Topic: Empirical Formula
Replies: 6
Views: 102

Empirical Formula

I'm going over the notes from Monday's lecture, and I noticed that in the vitamin c example he did, when trying to find the mass of the elements after finding the mass percentage of each, he used 100g as the sample mass. Will we always do this with these problems, unless we're told otherwise?
by Madeline Lequang 1G
Wed Oct 03, 2018 11:47 pm
Forum: SI Units, Unit Conversions
Topic: formula units [ENDORSED]
Replies: 68
Views: 21937

Re: formula units [ENDORSED]

Does anybody know what unit "pm" is? I'm doing the homework right now and I'm not sure what it stands for.
by Madeline Lequang 1G
Wed Oct 03, 2018 11:10 pm
Forum: SI Units, Unit Conversions
Topic: Homework Grading Clarification [ENDORSED]
Replies: 7
Views: 226

Re: Homework Grading Clarification [ENDORSED]

So say we complete every part of the question correctly, but right at the end we mess up on our sig figs, we'll still get no credit for any of our previous work?

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