Search found 101 matches

by Phil Timoteo 1K
Sun Mar 17, 2019 3:53 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Increasing volume
Replies: 3
Views: 182

Re: Increasing volume

Yes it will
by Phil Timoteo 1K
Sun Mar 17, 2019 3:48 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: equilibirum expression
Replies: 3
Views: 225

Re: equilibirum expression

Do not include solids or liquids
by Phil Timoteo 1K
Sun Mar 17, 2019 3:47 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalysts
Replies: 9
Views: 275

Re: Catalysts

Catalysts lower activation energy which speeds up rxn.
by Phil Timoteo 1K
Sun Mar 17, 2019 3:44 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Equation
Replies: 8
Views: 301

Re: Equation

Correct, unless started otherwise A=1.
by Phil Timoteo 1K
Tue Mar 05, 2019 10:55 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Study Advice
Replies: 31
Views: 522

Re: Study Advice

Lyndon and Karen's workshops are great!
by Phil Timoteo 1K
Tue Feb 26, 2019 12:36 am
Forum: Balancing Redox Reactions
Topic: about redox reaction
Replies: 5
Views: 100

Re: about redox reaction

Redox reaction are just rxns were one molecule is reduced and the other is oxidized, but it does not necessarily have to include oxygen.
by Phil Timoteo 1K
Tue Feb 26, 2019 12:34 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Redox Reactions
Replies: 4
Views: 99

Re: Redox Reactions

oxidizing agent is the molecule that wants to gain an electron
by Phil Timoteo 1K
Mon Feb 25, 2019 12:05 am
Forum: Balancing Redox Reactions
Topic: Test #2
Replies: 9
Views: 192

Re: Test #2

Yes i believe
by Phil Timoteo 1K
Mon Feb 25, 2019 12:05 am
Forum: Student Social/Study Group
Topic: Test
Replies: 17
Views: 415

Re: Test

Gibbs free and electrochemistry
by Phil Timoteo 1K
Mon Feb 25, 2019 12:03 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Test 3
Replies: 14
Views: 271

Re: Test 3

I would say so
by Phil Timoteo 1K
Mon Feb 25, 2019 12:03 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic Cells
Replies: 2
Views: 60

Re: Galvanic Cells

Yes and also which molecule is being oxidized and reduced
by Phil Timoteo 1K
Mon Feb 25, 2019 12:01 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Test 2
Replies: 9
Views: 192

Re: Test 2

We should know all variations of Gibbs equations
by Phil Timoteo 1K
Sun Feb 24, 2019 11:59 pm
Forum: Van't Hoff Equation
Topic: Test 2
Replies: 3
Views: 255

Re: Test 2

Yes but i still believe we need to know formulas on entropy and enthalpy
by Phil Timoteo 1K
Sun Feb 24, 2019 11:58 pm
Forum: Student Social/Study Group
Topic: Test 2
Replies: 3
Views: 77

Re: Test 2

I believe it's only electrochemistry and gibbs
by Phil Timoteo 1K
Mon Feb 11, 2019 5:28 pm
Forum: Student Social/Study Group
Topic: Too cute
Replies: 5
Views: 588

Re: Too cute

Haha nice
by Phil Timoteo 1K
Mon Feb 11, 2019 5:25 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Study Guides
Replies: 15
Views: 353

Re: Study Guides

UA Lyndon made one, just type "hotdog" in the search bar and you should be able to find it.
by Phil Timoteo 1K
Mon Feb 11, 2019 5:21 pm
Forum: Administrative Questions and Class Announcements
Topic: How to find my posts
Replies: 45
Views: 36913

Re: How to find my posts

Just click on quick links, and there should be a column there that says "your posts"
by Phil Timoteo 1K
Mon Feb 04, 2019 2:20 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Work Formula
Replies: 5
Views: 107

Re: Work Formula

Because AxD=V
by Phil Timoteo 1K
Mon Feb 04, 2019 2:12 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Isolated System (Water bottle)
Replies: 6
Views: 140

Re: Isolated System (Water bottle)

Isolated basically means energy and temperature remain constant?
eden tefera 2B wrote:an insulated water bottle would keep temperature (energy) constant and if it is closed then no water will leave. this means that no matter or energy is exchanged, the qualifications for an isolated system
by Phil Timoteo 1K
Mon Feb 04, 2019 2:08 am
Forum: Phase Changes & Related Calculations
Topic: Heat and Condensation
Replies: 9
Views: 136

Re: Heat and Condensation

Condensation releases heat and energy to turn from gas to liquid.
by Phil Timoteo 1K
Mon Feb 04, 2019 1:52 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018464

Re: Post All Chemistry Jokes Here

Photons don't ever need help with their luggage, they're traveling light. LOL
by Phil Timoteo 1K
Mon Feb 04, 2019 1:47 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Midterm [ENDORSED]
Replies: 49
Views: 1374

Re: Midterm [ENDORSED]

Completing homework problems and attending office hours if needed.
by Phil Timoteo 1K
Mon Feb 04, 2019 1:44 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Cup of Tea
Replies: 17
Views: 449

Re: Cup of Tea

Because it is susceptible to change.
by Phil Timoteo 1K
Mon Feb 04, 2019 1:38 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Work
Replies: 6
Views: 116

Re: Work

So does that mean work can't be negative?
by Phil Timoteo 1K
Mon Feb 04, 2019 1:36 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Internal energy
Replies: 5
Views: 120

Re: Internal energy

Internal energy is the energy within a system. It is calculated by adding q+w
by Phil Timoteo 1K
Sun Jan 13, 2019 4:13 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equations
Replies: 6
Views: 113

Re: Equations

Kc uses concentration and Kp uses partial pressure
by Phil Timoteo 1K
Sun Jan 13, 2019 4:10 pm
Forum: Student Social/Study Group
Topic: New to Lavelle
Replies: 32
Views: 3562

Re: New to Lavelle

Doing homework and going to STEP UP sessions
by Phil Timoteo 1K
Thu Dec 06, 2018 11:25 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent vs angular?
Replies: 15
Views: 244

Re: Bent vs angular?

They are the same thing.
by Phil Timoteo 1K
Thu Dec 06, 2018 11:23 am
Forum: Hybridization
Topic: Double and Triple Bonds
Replies: 17
Views: 270

Re: Double and Triple Bonds

No you can count them as 1 region of density for each double/triple bond.
by Phil Timoteo 1K
Thu Dec 06, 2018 11:22 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent Structures
Replies: 12
Views: 197

Re: Bent Structures

Yes because all bent molecules are polar.
by Phil Timoteo 1K
Sun Dec 02, 2018 8:00 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: AXE formula
Replies: 25
Views: 1277

Re: AXE formula

Yes with the AXE formula you can determine the shape of the molecule
by Phil Timoteo 1K
Sun Dec 02, 2018 7:31 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 12
Views: 281

Re: Bond Angles

I believe we should know and depending on different shapes determine there bond angles
by Phil Timoteo 1K
Wed Nov 14, 2018 3:17 am
Forum: Lewis Structures
Topic: Expanded Octets
Replies: 9
Views: 227

Re: Expanded Octets

Elements in and after period three because of the d-orbital.
by Phil Timoteo 1K
Wed Nov 14, 2018 3:13 am
Forum: Administrative Questions and Class Announcements
Topic: Test 3 dates?
Replies: 11
Views: 364

Re: Test 3 dates?

Test 3 will be held in week 9 discussion sections.
by Phil Timoteo 1K
Wed Nov 14, 2018 3:11 am
Forum: SI Units, Unit Conversions
Topic: Molar Mass to Kg
Replies: 6
Views: 347

Re: Molar Mass to Kg

Divide by Avogrado's number and then multiply g to get kg
by Phil Timoteo 1K
Wed Nov 14, 2018 3:09 am
Forum: Limiting Reactant Calculations
Topic: Actual Yield
Replies: 7
Views: 438

Re: Actual Yield

Actual yield in this class should be given.
by Phil Timoteo 1K
Sun Nov 11, 2018 5:31 pm
Forum: Administrative Questions and Class Announcements
Topic: Homework Due Week 7
Replies: 10
Views: 327

Re: Homework Due Week 7

Yes I believe it's okay
by Phil Timoteo 1K
Sun Nov 11, 2018 5:30 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 12
Views: 281

Re: Bond Angles

I think we will, and there are also patterns to certain shapes that correlate with certain bond angles
by Phil Timoteo 1K
Sun Nov 11, 2018 5:28 pm
Forum: Dipole Moments
Topic: VSPER
Replies: 8
Views: 161

Re: VSPER

VSPER explains how to draw the 3D shape of a molecule
by Phil Timoteo 1K
Mon Nov 05, 2018 12:42 am
Forum: Bond Lengths & Energies
Topic: Bond Lengths
Replies: 3
Views: 98

Re: Bond Lengths

I think if he asks questions about bond lengths it'll be more conceptual than calculation and getting an actual answer.
by Phil Timoteo 1K
Mon Nov 05, 2018 12:39 am
Forum: DeBroglie Equation
Topic: DeBroglie Equation Units
Replies: 4
Views: 285

Re: DeBroglie Equation Units

Because the SI unit for distance is metres
by Phil Timoteo 1K
Mon Nov 05, 2018 12:34 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Heisenberg and Wavelength
Replies: 11
Views: 533

Re: Heisenberg and Wavelength

It does because wavelength is equal to h/momentum. So they are inversely related the higher the momentum the smaller the wavelength and vice versa.
by Phil Timoteo 1K
Sat Nov 03, 2018 4:06 pm
Forum: Lewis Structures
Topic: Lewis Base & Acid
Replies: 2
Views: 84

Re: Lewis Base & Acid

this is correct!
Samantha Ito 4B wrote:Lewis bases donate pairs of electrons (not protons) and Lewis acids accept pairs of electrons.
by Phil Timoteo 1K
Sat Nov 03, 2018 4:04 pm
Forum: Bond Lengths & Energies
Topic: Lengths of Bonds
Replies: 9
Views: 186

Re: Lengths of Bonds

Because they have a stronger bond which pulls the atoms closer together.
by Phil Timoteo 1K
Sat Nov 03, 2018 4:01 pm
Forum: *Particle in a Box
Topic: Midterm
Replies: 17
Views: 1132

Re: Midterm

Check the class website
by Phil Timoteo 1K
Fri Oct 26, 2018 10:48 pm
Forum: General Science Questions
Topic: Midterm studying
Replies: 10
Views: 399

Re: Midterm studying

There are a ton of peer learning sessions and office hours, not to mention all the other tools Professor Lavelle has given us on our class website.
by Phil Timoteo 1K
Fri Oct 26, 2018 10:46 pm
Forum: Lewis Structures
Topic: octets
Replies: 13
Views: 267

Re: octets

A certain elements octet depend on how many electrons they have. You can find the number of electrons they have based on their periodic table.
by Phil Timoteo 1K
Fri Oct 26, 2018 10:03 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration Help
Replies: 3
Views: 88

Re: Electron Configuration Help

There are a lot of videos that make these concepts simple on YouTube.
by Phil Timoteo 1K
Wed Oct 17, 2018 1:43 am
Forum: Properties of Light
Topic: Expected to know?
Replies: 6
Views: 161

Re: Expected to know?

I think it is helpful that we know
by Phil Timoteo 1K
Wed Oct 17, 2018 1:42 am
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Wavelengths
Replies: 5
Views: 132

Re: Wavelengths

Wavelengths are always a positive number
by Phil Timoteo 1K
Wed Oct 17, 2018 1:40 am
Forum: General Science Questions
Topic: Midterm
Replies: 6
Views: 257

Re: Midterm

He'll post the dates and times of midterms, and it won't be during our lecture or discussion hours.
by Phil Timoteo 1K
Wed Oct 17, 2018 1:37 am
Forum: Student Social/Study Group
Topic: Test Grades
Replies: 4
Views: 202

Re: Test Grades

You usually get your test results the following week after having taking the test in your discussion.
by Phil Timoteo 1K
Wed Oct 17, 2018 1:36 am
Forum: Administrative Questions and Class Announcements
Topic: Points
Replies: 4
Views: 116

Re: Points

If you post 3 in a day you'll get full credit for the week. However, you cannot make up points for a week you miss.
by Phil Timoteo 1K
Sun Oct 14, 2018 1:47 am
Forum: Balancing Chemical Reactions
Topic: Test 1 and Future Tests
Replies: 5
Views: 322

Re: Test 1 and Future Tests

I would say to just show as much work as you can
by Phil Timoteo 1K
Sun Oct 14, 2018 1:44 am
Forum: Properties of Light
Topic: Test #1
Replies: 1
Views: 49

Re: Test #1

I believe in our discussion next week.
by Phil Timoteo 1K
Thu Oct 11, 2018 1:49 am
Forum: Significant Figures
Topic: Calculators
Replies: 20
Views: 625

Re: Calculators

You need to buy your own calculator.
by Phil Timoteo 1K
Thu Oct 11, 2018 1:44 am
Forum: Einstein Equation
Topic: Work Function
Replies: 4
Views: 95

Re: Work Function

The work function is the minimum energy required to remove an electron.
by Phil Timoteo 1K
Thu Oct 11, 2018 1:40 am
Forum: Photoelectric Effect
Topic: Work function
Replies: 7
Views: 147

Re: Work function

In class Professor Lavelle referred to work function as the threshold energy, or the energy required to emit an electron.
by Phil Timoteo 1K
Fri Oct 05, 2018 12:53 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Avogadro's Number
Replies: 9
Views: 247

Re: Avogadro's Number

Yes you would use Avogrado's constant.
by Phil Timoteo 1K
Mon Oct 01, 2018 8:54 am
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 143
Views: 84029

Re: Advice from a Medical Student [ENDORSED]

Thank you for this advice (:
by Phil Timoteo 1K
Mon Oct 01, 2018 8:45 am
Forum: SI Units, Unit Conversions
Topic: Homework Grading Clarification [ENDORSED]
Replies: 8
Views: 301

Re: Homework Grading Clarification [ENDORSED]

We're only required to turn in 7 problems(must be from the syllabus). If we want to do more, I believe that's fine. However, our TAs will only grade 7.
by Phil Timoteo 1K
Mon Jun 11, 2018 10:02 am
Forum: Administrative Questions and Class Announcements
Topic: Grading question
Replies: 11
Views: 683

Re: Grading question

Based off the syllabus I believe 250 points is required to get a C-.
by Phil Timoteo 1K
Mon Jun 11, 2018 10:00 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Final [ENDORSED]
Replies: 5
Views: 262

Re: Final [ENDORSED]

SammiOrsini_1B wrote:There were a lot of shapes given in the book. Are we responsible to know every shape, or only the ones regarded in class? Just curious as in what I should put specific interest in while studying for the final
I think it'll be best to study the shapes based off the readings that were given.
by Phil Timoteo 1K
Mon Jun 11, 2018 9:57 am
Forum: DeBroglie Equation
Topic: DeBroglie
Replies: 5
Views: 294

Re: DeBroglie

704992521 wrote:So would this mean that mass is always inversely related to wavelength for those particles with wave like properties?
I believe that's correct.
by Phil Timoteo 1K
Mon Jun 04, 2018 12:07 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: F orbital
Replies: 6
Views: 314

Re: F orbital

The F section has 7 orbitals so it can fill up to a total of 14 electrons.
by Phil Timoteo 1K
Sun Jun 03, 2018 7:00 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 7
Views: 256

Re: Bond Angles

For the final we should know the main bond angles for their structures.
by Phil Timoteo 1K
Sun Jun 03, 2018 6:52 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Naming Structures
Replies: 8
Views: 255

Re: Naming Structures

I don't think we have to know this for the final. But the best way for the VESPR formulas and their shapes.
by Phil Timoteo 1K
Sun Jun 03, 2018 6:51 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Naming Structures
Replies: 8
Views: 255

Re: Naming Structures

I don't think we have to know this for the final. But the best way for the VESPR formulas and their shapes.
by Phil Timoteo 1K
Sun May 27, 2018 4:43 pm
Forum: Bond Lengths & Energies
Topic: Bond Strength
Replies: 5
Views: 287

Re: Bond Strength

Yes but I don't know exactly to what extent.
by Phil Timoteo 1K
Sun May 27, 2018 4:41 pm
Forum: Resonance Structures
Topic: Kekulé Structures??
Replies: 6
Views: 323

Re: Kekulé Structures??

I don't think the were any on the test.
by Phil Timoteo 1K
Wed May 23, 2018 1:04 pm
Forum: Resonance Structures
Topic: Radicals
Replies: 2
Views: 165

Re: Radicals

Yes they always have an odd number of electrons.
by Phil Timoteo 1K
Sun May 20, 2018 10:49 pm
Forum: Ionic & Covalent Bonds
Topic: Test 3 [ENDORSED]
Replies: 7
Views: 263

Re: Test 3 [ENDORSED]

No I don't believe we'll be required to.
by Phil Timoteo 1K
Sat May 19, 2018 8:31 pm
Forum: Lewis Structures
Topic: Test #3
Replies: 11
Views: 380

Re: Test #3

All Chapter 3 and it would benefit to do all the homework problems.
by Phil Timoteo 1K
Sat May 19, 2018 8:30 pm
Forum: Ionic & Covalent Bonds
Topic: radicals [ENDORSED]
Replies: 9
Views: 288

Re: radicals [ENDORSED]

If one of the electrons is unpaired it's considered a radical.
by Phil Timoteo 1K
Sun May 06, 2018 7:47 pm
Forum: Ionic & Covalent Bonds
Topic: Midterm Topics [ENDORSED]
Replies: 33
Views: 1913

Re: Midterm Topics [ENDORSED]

I believe the midterm will cover material from chapter 1&2
by Phil Timoteo 1K
Sun May 06, 2018 7:44 pm
Forum: Properties of Light
Topic: Wavelength/frequency
Replies: 11
Views: 403

Re: Wavelength/frequency

Because E=hv and if the wavelength increases that means the frequency would decrease.
by Phil Timoteo 1K
Sun May 06, 2018 2:34 pm
Forum: Photoelectric Effect
Topic: Test 2 final question [ENDORSED]
Replies: 15
Views: 559

Re: Test 2 final question [ENDORSED]

For every photon there is an electron. Which is why there would be 1000.
by Phil Timoteo 1K
Sun Apr 29, 2018 1:54 pm
Forum: Photoelectric Effect
Topic: What is work function? [ENDORSED]
Replies: 15
Views: 1605

Re: What is work function? [ENDORSED]

FizaBaloch1J wrote:It is the minimum threshold needed to eject an electron from the metal.
by Phil Timoteo 1K
Mon Apr 23, 2018 8:16 pm
Forum: DeBroglie Equation
Topic: Wavelength= (h/p) [ENDORSED]
Replies: 7
Views: 358

Re: Wavelength= (h/p) [ENDORSED]

I believe you're correct it's because photons do not have a mass.
by Phil Timoteo 1K
Mon Apr 23, 2018 7:47 pm
Forum: Properties of Light
Topic: Test 2 Material
Replies: 12
Views: 419

Re: Test 2 Material

Just chapter 1 to 1.5.
by Phil Timoteo 1K
Sat Apr 21, 2018 8:34 pm
Forum: General Science Questions
Topic: Workshops/step ups [ENDORSED]
Replies: 2
Views: 324

Re: Workshops/step ups [ENDORSED]

Hmm I would recommend going to add many as you can.
by Phil Timoteo 1K
Sat Apr 21, 2018 8:33 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Heisenberg Uncertainty Question [ENDORSED]
Replies: 2
Views: 116

Re: Heisenberg Uncertainty Question [ENDORSED]

KateCaldwell 1A wrote:The numerical cutoff for delta p is h/4pi.delta x. The numerical cutoff for delta v is delta p/mass.

Yes that's correct
by Phil Timoteo 1K
Sat Apr 21, 2018 8:32 pm
Forum: Student Social/Study Group
Topic: Study Group
Replies: 10
Views: 643

Re: Study Group

Hey can someone add me to the group.
by Phil Timoteo 1K
Sun Apr 15, 2018 10:57 pm
Forum: Empirical & Molecular Formulas
Topic: Practice Problem
Replies: 2
Views: 198

Re: Practice Problem

Find the empiracle formula and then the molecular formula
by Phil Timoteo 1K
Sun Apr 15, 2018 10:54 pm
Forum: SI Units, Unit Conversions
Topic: What is the notation for molar mass?
Replies: 15
Views: 621

Re: What is the notation for molar mass?

Molar Mass is expressed as "M"
by Phil Timoteo 1K
Sun Apr 15, 2018 4:59 pm
Forum: *Black Body Radiation
Topic: What is a black body? [ENDORSED]
Replies: 7
Views: 755

Re: What is a black body? [ENDORSED]

I think one of the video modules we watched. Professor Lavelle said we wouldn't be dealing with black bodies in 14A
by Phil Timoteo 1K
Sun Apr 15, 2018 4:58 pm
Forum: *Black Body Radiation
Topic: What is a black body? [ENDORSED]
Replies: 7
Views: 755

Re: What is a black body? [ENDORSED]

is a theoretically ideal radiator and absorber of energy at all electromagnetic wavelength s
by Phil Timoteo 1K
Sun Apr 15, 2018 4:56 pm
Forum: Photoelectric Effect
Topic: Intensity VS Energy Models? [ENDORSED]
Replies: 4
Views: 158

Re: Intensity VS Energy Models? [ENDORSED]

Harmonie Ahuna-1C wrote:To add on to this, does light intensity matter for the photoelectric effect?

Yes it does matter in terms of electrons.
by Phil Timoteo 1K
Sun Apr 15, 2018 4:52 pm
Forum: Administrative Questions and Class Announcements
Topic: Switching discussion [ENDORSED]
Replies: 6
Views: 252

Re: Switching discussion [ENDORSED]

If you wanna switch me that would be cool. I'm in 1h

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