Search found 128 matches

by Mitchell Koss 4G
Fri Mar 13, 2020 12:03 pm
Forum: Administrative Questions and Class Announcements
Topic: Earthquake FINAL REVIEW SESSION
Replies: 11
Views: 393

Re: Earthquake FINAL REVIEW SESSION

I invited the UAs to attend so it is possible that at least 1 of them will show up and go over the worksheets. I also feel like the UAs will still post the answers but if not and we work through the worksheets we will be sure to share the solutions.
by Mitchell Koss 4G
Fri Mar 13, 2020 4:59 am
Forum: Administrative Questions and Class Announcements
Topic: Earthquake FINAL REVIEW SESSION
Replies: 11
Views: 393

Re: Earthquake FINAL REVIEW SESSION

Review happening today in delta terrace house 6 lounge 6-9pm!!
by Mitchell Koss 4G
Thu Mar 12, 2020 6:38 am
Forum: Administrative Questions and Class Announcements
Topic: Earthquake FINAL REVIEW SESSION
Replies: 11
Views: 393

Re: Earthquake FINAL REVIEW SESSION

Of course! And to answer the previous question about food: I personally will not be bringing any or eating during the session but if anyone wants to than that’s fine with me!
by Mitchell Koss 4G
Wed Mar 11, 2020 1:49 pm
Forum: Administrative Questions and Class Announcements
Topic: Earthquake FINAL REVIEW SESSION
Replies: 11
Views: 393

Re: Earthquake FINAL REVIEW SESSION

Please also comment if you think you will attend! Thanks!
by Mitchell Koss 4G
Wed Mar 11, 2020 12:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Earthquake FINAL REVIEW SESSION
Replies: 11
Views: 393

Earthquake FINAL REVIEW SESSION

“Earthquake” - FINAL REVIEW SESSION Search “Earthquake” to find this post. Hello, I am organizing a review session on Friday March 13 from 6:00-9:00 pm in the Sunset Village Delta Terrace House 6 Lounge. We will meet in the lounge and go over problems on the whiteboard from the ENDGAME worksheet, a...
by Mitchell Koss 4G
Wed Mar 11, 2020 7:23 am
Forum: Administrative Questions and Class Announcements
Topic: UA Help
Replies: 1
Views: 95

UA Help

Hello UAs. Would it be possible to still send out the worksheet for the since canceled Thursday review? And the answers or worked out solutions too? Also, for the ENDGAME review session can we still get answers or worked out solutions? I know the final will be take home and “straightforward” but I r...
by Mitchell Koss 4G
Tue Mar 10, 2020 4:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Coronavirus Concern
Replies: 6
Views: 204

Re: Coronavirus Concern

We will probably get updates soon but is the in person final still going to take place? What about review sessions and class tomorrow? This class doesn’t have ccle so if there is a video of lecture where will it get posted?
by Mitchell Koss 4G
Tue Mar 10, 2020 12:28 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: different units
Replies: 4
Views: 54

Re: different units

k=rate/[A]

rate=M/s
[A]=M
by Mitchell Koss 4G
Tue Mar 10, 2020 12:27 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: kinetically stable?
Replies: 10
Views: 97

Re: kinetically stable?

High Ea means that it takes a great deal of energy to start rxn so it is stable at standard conditions
by Mitchell Koss 4G
Tue Mar 10, 2020 12:25 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: derivations
Replies: 9
Views: 92

Re: derivations

I don't think you need to know how to derive any. He has said "know how to derive" on every outline but has never asked for just a derivation on a test.
by Mitchell Koss 4G
Tue Mar 10, 2020 12:24 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Problems
Replies: 6
Views: 46

Re: Problems

Probably. He may ask if reaction is expected to be slow or fast and if it is endothermic or exothermic, etc.
by Mitchell Koss 4G
Tue Mar 10, 2020 12:23 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Checking Answers
Replies: 3
Views: 64

Re: Checking Answers

You can also check units
by Mitchell Koss 4G
Tue Mar 10, 2020 12:22 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: thermo or kinetics?
Replies: 9
Views: 83

Re: thermo or kinetics?

they don't control a reaction; instead, they are 2 different ways to think about what a reaction produces, uses, and how it proceeds.
by Mitchell Koss 4G
Mon Mar 02, 2020 8:14 pm
Forum: General Rate Laws
Topic: Deriving the laws
Replies: 5
Views: 50

Re: Deriving the laws

lavelle said derivation just for "increased understanding"
by Mitchell Koss 4G
Mon Mar 02, 2020 8:12 pm
Forum: Van't Hoff Equation
Topic: Derive [ENDORSED]
Replies: 4
Views: 121

Re: Derive [ENDORSED]

In theory we should know how to derive it but no test/exam question has ever had us derive an equ before.
by Mitchell Koss 4G
Mon Mar 02, 2020 8:10 pm
Forum: Van't Hoff Equation
Topic: what does it do?
Replies: 13
Views: 212

Re: what does it do?

The equ can also be used/written in several forms
by Mitchell Koss 4G
Mon Mar 02, 2020 8:08 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Electrode
Replies: 2
Views: 22

Electrode

In a galvanic cell when the anode deteriorates and the cathode gains metal, where does the metal being added to the cathode come from? Ex: if the anode is silver and the cathode is gold, does silver form on the outside of the gold cathode or does more gold form on the outside of the gold cathode?
by Mitchell Koss 4G
Mon Mar 02, 2020 8:05 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic cells
Replies: 6
Views: 38

Re: Galvanic cells

If you think about it, for a battery to work, the chemical rxn needs to be spontaneous.
by Mitchell Koss 4G
Mon Feb 24, 2020 4:18 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Conditions of Eo
Replies: 3
Views: 43

Re: Conditions of Eo

Cause different temp or pressure can change the reaction which would change electricity
by Mitchell Koss 4G
Mon Feb 24, 2020 4:18 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: n
Replies: 13
Views: 131

Re: n

Moles is always in moles but R is in different units depending on what units are given
by Mitchell Koss 4G
Mon Feb 24, 2020 4:16 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Difference
Replies: 5
Views: 48

Re: Difference

Gibbs also involves K which was not seen in the main section of thermo
by Mitchell Koss 4G
Mon Feb 24, 2020 4:16 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Vant Hoff Equation
Replies: 8
Views: 72

Re: Vant Hoff Equation

This equ can also be used a variety of ways. There are multiple variations of the equ that all lead to the right answer.
by Mitchell Koss 4G
Mon Feb 24, 2020 4:14 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: test 2 material clarification
Replies: 10
Views: 110

Re: test 2 material clarification

Gibbs with K will be on the test but not regular Gibbs stuff
by Mitchell Koss 4G
Mon Feb 17, 2020 2:21 pm
Forum: Balancing Redox Reactions
Topic: Helpful Videos
Replies: 2
Views: 39

Re: Helpful Videos

Organic chem tutor has good videos too!
by Mitchell Koss 4G
Mon Feb 17, 2020 2:21 pm
Forum: Balancing Redox Reactions
Topic: Why do we split equations?
Replies: 12
Views: 78

Re: Why do we split equations?

Its to show more detail and so you see where the e- come from
by Mitchell Koss 4G
Mon Feb 17, 2020 2:19 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Wmax
Replies: 4
Views: 56

Re: Wmax

Its not electrochem. Its just a wrap up of thermo and we began a new unit.
by Mitchell Koss 4G
Mon Feb 17, 2020 2:18 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Buffer Solution
Replies: 4
Views: 78

Re: Buffer Solution

Buffers allow for small changes. If only strong acids or bases were used, then small changes wouldn't really be possible.
by Mitchell Koss 4G
Mon Feb 17, 2020 2:16 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Cell Potential
Replies: 4
Views: 49

Re: Cell Potential

And the potential will depend on the reaction, just as kinetic potential depends on size and distance.
by Mitchell Koss 4G
Mon Feb 17, 2020 2:14 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Electrochemical cell
Replies: 4
Views: 55

Re: Electrochemical cell

There is not really a shift but more of a connection that allows e- to flow
by Mitchell Koss 4G
Sun Feb 16, 2020 9:01 pm
Forum: Balancing Redox Reactions
Topic: Electrochemisty
Replies: 10
Views: 93

Re: Electrochemisty

All about electron transfer and a major application is batteries
by Mitchell Koss 4G
Sun Feb 16, 2020 9:00 pm
Forum: Balancing Redox Reactions
Topic: Oxygen
Replies: 9
Views: 54

Re: Oxygen

The same elements usually have the same oxidation numbers. The periodic table also has trends.
by Mitchell Koss 4G
Sun Feb 16, 2020 8:59 pm
Forum: Balancing Redox Reactions
Topic: Seperating Redoz RXNS
Replies: 7
Views: 38

Re: Seperating Redoz RXNS

2 half reactions added together equal the main reaction. It is just a way to show in detail where the e- go
by Mitchell Koss 4G
Sun Feb 16, 2020 8:58 pm
Forum: Balancing Redox Reactions
Topic: In Class Example
Replies: 4
Views: 33

Re: In Class Example

Basically the single reaction can be written as 2 half reactions
by Mitchell Koss 4G
Sun Feb 16, 2020 8:58 pm
Forum: Balancing Redox Reactions
Topic: Memorizing charges
Replies: 11
Views: 90

Re: Memorizing charges

just know the examples used in class and you should be fine
by Mitchell Koss 4G
Sun Feb 16, 2020 8:57 pm
Forum: Balancing Redox Reactions
Topic: Redox Reactions
Replies: 12
Views: 70

Re: Redox Reactions

Oxidation is e- loss, reduction is e- gain (OIL RIG)
by Mitchell Koss 4G
Mon Feb 03, 2020 8:32 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Isolated systems
Replies: 4
Views: 36

Re: Isolated systems

Closed is like a test tube with a cap on it, so solution can be heated or lose heat.
Isolated is behind thick walls like a bomb calorimeter or thermos so no outside interaction can occur.
by Mitchell Koss 4G
Mon Feb 03, 2020 8:30 pm
Forum: Calculating Work of Expansion
Topic: temperature
Replies: 7
Views: 54

Re: temperature

Although K is really 273.15 you could also just use 273 so it is easier to remember.
by Mitchell Koss 4G
Mon Feb 03, 2020 8:29 pm
Forum: Calculating Work of Expansion
Topic: Derivative
Replies: 3
Views: 44

Re: Derivative

I think you should just make sure you know what he covers in class.
by Mitchell Koss 4G
Mon Feb 03, 2020 8:28 pm
Forum: Calculating Work of Expansion
Topic: 4B.9
Replies: 3
Views: 32

Re: 4B.9

...also know that diathermic means heat can transfer!
by Mitchell Koss 4G
Mon Feb 03, 2020 8:26 pm
Forum: Calculating Work of Expansion
Topic: Calculus on The Midterm
Replies: 8
Views: 67

Re: Calculus on The Midterm

I do believe calc is a pre/co req but I don't think we will need to do a lot of it. Especially on the midterm where other content will be covered like acids and bases and equilibrium
by Mitchell Koss 4G
Mon Feb 03, 2020 8:24 pm
Forum: Calculating Work of Expansion
Topic: Intergral
Replies: 6
Views: 57

Re: Intergral

I haven't done all the HW problems but I don't think he would point us to the antiderivative course page if we didn't need to do some kind of calc.
by Mitchell Koss 4G
Mon Jan 27, 2020 10:14 pm
Forum: Phase Changes & Related Calculations
Topic: ∆H
Replies: 17
Views: 123

Re: ∆H

You can also see if heat is used as a product or reactant for determining exo/endo thermic
by Mitchell Koss 4G
Mon Jan 27, 2020 10:13 pm
Forum: Phase Changes & Related Calculations
Topic: Steam Burns
Replies: 9
Views: 78

Re: Steam Burns

The second flat line is longer than the first meaning more energy is involved for making steam from boiling water
by Mitchell Koss 4G
Mon Jan 27, 2020 10:12 pm
Forum: Phase Changes & Related Calculations
Topic: Steam?
Replies: 8
Views: 86

Re: Steam?

It takes longer to break the final bonds so steam burns more
by Mitchell Koss 4G
Mon Jan 27, 2020 10:10 pm
Forum: Phase Changes & Related Calculations
Topic: Why does steam cause burns?
Replies: 29
Views: 232

Re: Why does steam cause burns?

It takes longer for the bonds to break.
by Mitchell Koss 4G
Mon Jan 27, 2020 10:09 pm
Forum: Phase Changes & Related Calculations
Topic: sig figs
Replies: 6
Views: 45

Re: sig figs

The only deviation for standard sig fig rules is pH and logs.
by Mitchell Koss 4G
Mon Jan 27, 2020 10:08 pm
Forum: Phase Changes & Related Calculations
Topic: Chem 14A Final Pickup
Replies: 8
Views: 73

Re: Chem 14A Final Pickup

I got mine at the front desk and you can go anytime they are there.
by Mitchell Koss 4G
Mon Jan 20, 2020 8:06 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: pKa and pKb
Replies: 17
Views: 153

Re: pKa and pKb

always go back to pH= -log[H30+] and pOH= -log[OH-]. From this you can get the other relationships
by Mitchell Koss 4G
Mon Jan 20, 2020 8:04 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: X was ignored
Replies: 27
Views: 173

Re: X was ignored

x is very small so it is basically zero for the denominator (0.0000000000000000001), but we leave x alone in the numerator cause having 0 up top would make the whole thing=0.
by Mitchell Koss 4G
Mon Jan 20, 2020 8:02 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: lewis structure
Replies: 11
Views: 75

Re: lewis structure

No chem 14A material will not be on our tests. It can be helpful for deeper understanding but I feel like it is not necessary.
by Mitchell Koss 4G
Mon Jan 20, 2020 8:01 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H20 in the ICE table
Replies: 26
Views: 203

Re: H20 in the ICE table

Leave H2O out only if it is a liquid. It must be included if it is a gas.
by Mitchell Koss 4G
Mon Jan 20, 2020 7:59 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: ice table
Replies: 5
Views: 40

Re: ice table

ICE tables are all about equilibrium so there is no need to include solids or liquids.
by Mitchell Koss 4G
Mon Jan 20, 2020 7:58 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Identifying endothermic vs exothermic
Replies: 7
Views: 52

Re: Identifying endothermic vs exothermic

They will need to give you a delta H, so it it is positive, reaction is endothermic, but if it is negative, it is exothermic.
by Mitchell Koss 4G
Mon Jan 20, 2020 7:56 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: q vs k
Replies: 9
Views: 47

Re: q vs k

Yes if a reaction reaches equilibrium, it will have Q=K
by Mitchell Koss 4G
Mon Jan 13, 2020 11:37 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Hw for next week
Replies: 19
Views: 148

Re: Hw for next week

Yes, as long as we talk about chem eq which we will.
by Mitchell Koss 4G
Mon Jan 13, 2020 11:36 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solids and liquids
Replies: 6
Views: 45

Re: solids and liquids

you can't have the concentration of a solid object
by Mitchell Koss 4G
Mon Jan 13, 2020 11:35 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K and Q
Replies: 6
Views: 40

Re: K and Q

K is definite eq constant but Q is just the value at some time.
by Mitchell Koss 4G
Mon Jan 13, 2020 11:34 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Units for K
Replies: 21
Views: 175

Re: Units for K

K has no units but units you plug in matter, so use mol/L not mL or mol.
by Mitchell Koss 4G
Mon Jan 13, 2020 11:33 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Autoprotolysis of water endo or exo?
Replies: 4
Views: 25

Re: Autoprotolysis of water endo or exo?

The autoionization of water is an endothermic reaction.
by Mitchell Koss 4G
Tue Jan 07, 2020 11:45 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equilibrium Constant for Solids/Gases
Replies: 5
Views: 57

Re: Equilibrium Constant for Solids/Gases

Equilibrium constants are ratios and you cannot just delete the numerator, it needs a place holder.
by Mitchell Koss 4G
Tue Jan 07, 2020 11:44 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE Table Variables
Replies: 2
Views: 23

ICE Table Variables

In module 2, Dr. Lavelle did not use the variable x for the change concentration, but did so in module 3. Should we just stick with always using variables for change concentration to be safe? Are there any cases in which we could not use variables?
by Mitchell Koss 4G
Tue Jan 07, 2020 11:42 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Very Large K
Replies: 12
Views: 139

Re: Very Large K

Conversely, a very very small K means the left side of the reaction is favored.
by Mitchell Koss 4G
Tue Jan 07, 2020 11:41 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Units in Bars
Replies: 4
Views: 53

Re: Units in Bars

I believe it is safe to say that 1 bar is equal to 1 atm
by Mitchell Koss 4G
Tue Jan 07, 2020 11:40 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Heterogenous vs. Homogenous equations
Replies: 6
Views: 63

Re: Heterogenous vs. Homogenous equations

And remember that terms in reactions that are solids or pure liquids are left out of the equilibrium constant.
by Mitchell Koss 4G
Mon Jan 06, 2020 4:31 pm
Forum: Ideal Gases
Topic: ICE Table Variables
Replies: 6
Views: 87

ICE Table Variables

In online module #2, Dr. Lavelle represents the ICE box change without x terms but just by the concentration. In module 3, he uses x as a variable for the change amount. Should we always use variables from this point on? Are there times we would not be able to use variables?
by Mitchell Koss 4G
Tue Dec 03, 2019 2:27 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Final
Replies: 2
Views: 42

Final

How much of the naming coordination compounds table are we expected to know? I understand needing to know that Cl has a -1 charge and that it becomes cholro, but do we need to know how to draw edta and write its chemical formula?
by Mitchell Koss 4G
Mon Dec 02, 2019 6:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Final [ENDORSED]
Replies: 10
Views: 629

Re: Final [ENDORSED]

2019 key word: marshmallow
by Mitchell Koss 4G
Mon Dec 02, 2019 6:37 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Location
Replies: 11
Views: 143

Re: Final Exam Location

The assignments are now available on the class website, the 2pm class is in Moore 100
by Mitchell Koss 4G
Mon Dec 02, 2019 6:35 pm
Forum: *Stereochemistry
Topic: What is the difference between cis and trans?
Replies: 2
Views: 676

Re: What is the difference between cis and trans?

Cis is same side, trans is opposite side
by Mitchell Koss 4G
Mon Dec 02, 2019 6:33 pm
Forum: Calculating the pH of Salt Solutions
Topic: PH
Replies: 5
Views: 51

Re: PH

Also remember that there is pH and pOH
by Mitchell Koss 4G
Mon Dec 02, 2019 6:33 pm
Forum: Calculating the pH of Salt Solutions
Topic: Sig Figs for logarithmic funcitons
Replies: 6
Views: 126

Re: Sig Figs for logarithmic funcitons

Sig fig rules are standard for any kind of problem
by Mitchell Koss 4G
Mon Dec 02, 2019 6:32 pm
Forum: Calculating the pH of Salt Solutions
Topic: pH formula?
Replies: 21
Views: 628

Re: pH formula?

No you do not need to understand how logarithms are derived
by Mitchell Koss 4G
Mon Nov 25, 2019 8:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Attach Pictures
Replies: 3
Views: 81

Re: Attach Pictures

You can also add things like a url or YouTube video by looking at the buttons right below the subject line when making a post
by Mitchell Koss 4G
Mon Nov 25, 2019 8:50 pm
Forum: Administrative Questions and Class Announcements
Topic: posting on chemistry community
Replies: 11
Views: 194

Re: posting on chemistry community

Dr. Lavelle said the weekend ends on Sunday 11:59 so that is when things are due
by Mitchell Koss 4G
Mon Nov 25, 2019 8:49 pm
Forum: Administrative Questions and Class Announcements
Topic: How to find my posts
Replies: 48
Views: 47803

Re: How to find my posts

Online can get complicated so I just keep a piece of paper with a tally.
by Mitchell Koss 4G
Mon Nov 25, 2019 8:47 pm
Forum: Lewis Acids & Bases
Topic: Donor and Acceptor
Replies: 6
Views: 59

Re: Donor and Acceptor

Since electrons are negative and protons are positive the relationship can become confused but drawing a diagram can help
by Mitchell Koss 4G
Mon Nov 25, 2019 8:46 pm
Forum: Lewis Acids & Bases
Topic: SO3
Replies: 2
Views: 42

Re: SO3

Dr. Lavelle also highlighted in class that when discussing clean vs dirty coal, clean coal doesn’t emit as much SO3 as dirty coal
by Mitchell Koss 4G
Mon Nov 25, 2019 8:45 pm
Forum: Lewis Acids & Bases
Topic: When is an acid considered Bronsted?
Replies: 9
Views: 108

Re: When is an acid considered Bronsted?

Bronstead vs Lewis is really the same concept, the difference is the level of detail each gives, with Lewis focusing on the electrons, and Bronstead focusing on the general shift.
by Mitchell Koss 4G
Thu Nov 21, 2019 2:11 pm
Forum: Naming
Topic: Cation/Anion
Replies: 7
Views: 311

Re: Cation/Anion

Not necessarily but it is helpful to know the common ones.
by Mitchell Koss 4G
Thu Nov 21, 2019 2:11 pm
Forum: Naming
Topic: Naming Compounds (general question)
Replies: 5
Views: 76

Re: Naming Compounds (general question)

Dr. Lavelle also just sent an email with a naming chart that is helpful
by Mitchell Koss 4G
Thu Nov 21, 2019 2:10 pm
Forum: Biological Examples
Topic: Cisplatin
Replies: 2
Views: 61

Re: Cisplatin

In simpler terms: 2 Cl on one side can form 2 bonds; 2 Cl on opposite side can only form 1 bond. 1 bond is easier to break than 2, so the cisplatin bond is harder to break.
by Mitchell Koss 4G
Thu Nov 21, 2019 2:07 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Which shape
Replies: 6
Views: 57

Re: Which shape

It is helpful to watch a YouTube video explaining the difference as many can be determined without looking at Lewis diagram
by Mitchell Koss 4G
Thu Nov 21, 2019 2:06 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Molecular Shape vs. Geometry
Replies: 5
Views: 76

Re: Molecular Shape vs. Geometry

The electron domain shape is needed for bond angles but only the molecular shape is specifically asked for on a test for example.
by Mitchell Koss 4G
Thu Nov 21, 2019 2:04 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: test 2
Replies: 3
Views: 59

Re: test 2

My TA said they will begin grading over Thanksgiving so we prop shouldn’t expect a grade back until week 10
by Mitchell Koss 4G
Tue Nov 12, 2019 10:24 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty in Speed [ENDORSED]
Replies: 18
Views: 4683

Re: Uncertainty in Speed [ENDORSED]

Also, don’t confuse frequency (v) with velocity (v)
by Mitchell Koss 4G
Tue Nov 12, 2019 10:23 am
Forum: Electronegativity
Topic: Atom size
Replies: 16
Views: 434

Re: Atom size

However, being electronegative does not make an atom small, it is being small that would impact electronegativity
by Mitchell Koss 4G
Tue Nov 12, 2019 10:22 am
Forum: Ionic & Covalent Bonds
Topic: Ionization of Nitrogen vs Oxygen
Replies: 11
Views: 150

Re: Ionization of Nitrogen vs Oxygen

Ionization energy does not follow the trend in this case, but electronegativity does.
by Mitchell Koss 4G
Tue Nov 12, 2019 10:20 am
Forum: Ionic & Covalent Bonds
Topic: Solid v. Liquid v. Gas
Replies: 8
Views: 91

Re: Solid v. Liquid v. Gas

Also guessing which state an element/compound is usually works if you are unsure.
by Mitchell Koss 4G
Tue Nov 12, 2019 10:18 am
Forum: Ionic & Covalent Bonds
Topic: Homework for week 7
Replies: 5
Views: 79

Re: Homework for week 7

Although it would be smart to do some of the later problems about Lewis structures since that ties into what we are just beginning to talk about in class regarding shape.
by Mitchell Koss 4G
Mon Nov 04, 2019 3:41 pm
Forum: General Rate Laws
Topic: Unique Reaction Rates [ENDORSED]
Replies: 33
Views: 77227

Re: Unique Reaction Rates [ENDORSED]

Combustion is also unique in that it will always have some reactants and some products that remain the same. (CO2, H2O)
by Mitchell Koss 4G
Mon Nov 04, 2019 3:40 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Rydberg equation [ENDORSED]
Replies: 73
Views: 3207

Re: Rydberg equation [ENDORSED]

Equations will be given on any test. Although the traditional Rydberg equation may not be, but Dr. Lavelle’s preferred Rydberg equ is.
by Mitchell Koss 4G
Mon Nov 04, 2019 3:39 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 118
Views: 31929

Re: Final Jitters

Most effective studying is done over many weeks, not pulling an all night session
by Mitchell Koss 4G
Mon Nov 04, 2019 3:38 pm
Forum: Administrative Questions and Class Announcements
Topic: 10/28 Updates due to Fire [ENDORSED]
Replies: 14
Views: 1011

Re: 10/28 Updates due to Fire [ENDORSED]

Dr. Lavelle is also covering midterm material in class today
by Mitchell Koss 4G
Mon Nov 04, 2019 3:37 pm
Forum: Dipole Moments
Topic: drawing dipole moments
Replies: 5
Views: 71

Re: drawing dipole moments

There is also the delta positive and delta negative symbols
by Mitchell Koss 4G
Mon Nov 04, 2019 3:36 pm
Forum: Dipole Moments
Topic: Magnetic Dipole Moment and Electric Dipole Moment
Replies: 2
Views: 38

Re: Magnetic Dipole Moment and Electric Dipole Moment

Don’t forget that not all of outline 3 material is on the midterm.
by Mitchell Koss 4G
Wed Oct 30, 2019 8:20 pm
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 63
Views: 71240

Re: Tutoring? [ENDORSED]

You can go to the AAP office and ask if any are available
by Mitchell Koss 4G
Wed Oct 30, 2019 8:19 pm
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E-textbook [ENDORSED]
Replies: 21
Views: 4805

Re: Accessing the E-textbook [ENDORSED]

The textbook store is also offering exchanges of the Sapling online pass as there are some issues with accessing the course but the last day to do so is today.

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