Search found 59 matches

by megangeorge-1K
Sat Mar 16, 2019 9:44 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalysts
Replies: 2
Views: 172

Catalysts

What is the difference between a homogeneous and heterogenous catalyst that has on the reaction?
by megangeorge-1K
Sat Mar 16, 2019 9:43 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalysts
Replies: 9
Views: 272

Catalysts

How does a catlyst effect the reaction curve? I
by megangeorge-1K
Sat Mar 16, 2019 9:41 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Arrhenius Equation
Replies: 3
Views: 216

Arrhenius Equation

What do we use the Arrhenius equation for?
by megangeorge-1K
Sat Mar 16, 2019 9:25 pm
Forum: Second Order Reactions
Topic: units
Replies: 2
Views: 186

units

what is the units of k for a second order reaction
by megangeorge-1K
Sat Mar 16, 2019 9:25 pm
Forum: First Order Reactions
Topic: units
Replies: 3
Views: 182

units

what is the units of k for a first order reaction
by megangeorge-1K
Sat Mar 16, 2019 9:23 pm
Forum: Zero Order Reactions
Topic: overall rate
Replies: 4
Views: 204

overall rate

when writing the overall rate of the reaction we don't write in zero-order reactions right?
by megangeorge-1K
Sat Mar 16, 2019 9:17 pm
Forum: General Rate Laws
Topic: rate of consumption
Replies: 2
Views: 187

rate of consumption

Why does the average rate of consumption formula have a negative and the average rate of formation does not?
by megangeorge-1K
Sat Mar 16, 2019 8:02 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: standard cell potentials
Replies: 5
Views: 84

Re: standard cell potentials

So when the cell potential has a negative value then does that mean the reaction is not spontaneous?
by megangeorge-1K
Sat Mar 16, 2019 8:01 pm
Forum: Balancing Redox Reactions
Topic: cell diagram
Replies: 3
Views: 220

Re: cell diagram

Thank you that was very helpful! Which instances would you apply Pt(s) on both sides of the diagram?
by megangeorge-1K
Sat Mar 16, 2019 7:57 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Cell potential and Gibbs Free energy
Replies: 2
Views: 169

Cell potential and Gibbs Free energy

in the equation
deltaG= -nFE
what does n stand for? is it number of moles?
by megangeorge-1K
Sat Mar 16, 2019 3:34 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: standard cell potentials
Replies: 5
Views: 84

standard cell potentials

Why do standard cell potentials have to be positive?
by megangeorge-1K
Sat Mar 16, 2019 3:33 pm
Forum: Balancing Redox Reactions
Topic: cell diagram
Replies: 3
Views: 220

cell diagram

I am sure this question has been asked a million times already I am just still very confused on writing the cell diagram for a redox reaction.
When do we add Pt(s) and what does that mean?
by megangeorge-1K
Sat Mar 16, 2019 3:31 pm
Forum: General Rate Laws
Topic: unique rate [ENDORSED]
Replies: 3
Views: 243

Re: unique rate [ENDORSED]

these were very helpful thank you so much
by megangeorge-1K
Mon Mar 11, 2019 9:39 pm
Forum: General Rate Laws
Topic: unique rate [ENDORSED]
Replies: 3
Views: 243

unique rate [ENDORSED]

what is the difference between a unique rate vs. an instantaneous rate?
by megangeorge-1K
Wed Feb 27, 2019 1:02 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: test 2
Replies: 6
Views: 133

Re: test 2

for outline 4 I believe it will be any material we learned during week 6
by megangeorge-1K
Wed Feb 20, 2019 4:23 pm
Forum: General Science Questions
Topic: Midterm
Replies: 5
Views: 284

Midterm

I have a question about Question 3D
What is Ka2?
by megangeorge-1K
Wed Feb 13, 2019 2:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equilibrium constant
Replies: 3
Views: 63

Equilibrium constant

Is the equilibrium constant, K unitless?
by megangeorge-1K
Wed Feb 13, 2019 1:12 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: state function
Replies: 4
Views: 72

Re: state function

why is Internal energy a state function if it is comprised of heat and work which are both not state functions?
by megangeorge-1K
Wed Feb 13, 2019 12:30 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: state function
Replies: 4
Views: 72

state function

Is work a state function?
by megangeorge-1K
Tue Feb 12, 2019 11:23 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: work
Replies: 5
Views: 89

work

If we are calculating work on a system and W is a positive number, does that mean work is done by the system or work is done on the system? What is the difference between these two?
by megangeorge-1K
Sun Feb 10, 2019 5:47 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: midterm
Replies: 5
Views: 97

Re: midterm

thank you so much
by megangeorge-1K
Sun Feb 10, 2019 3:58 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: midterm
Replies: 5
Views: 97

midterm

does the midterm cover outlines 1-4?
by megangeorge-1K
Mon Jan 28, 2019 2:52 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: lecture notes
Replies: 1
Views: 86

lecture notes

does anyone have the lecture notes for (1/28)?
by megangeorge-1K
Fri Jan 25, 2019 12:09 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: determining x for weak acids and bases
Replies: 6
Views: 273

Re: determining x for weak acids and bases

This is a side note what is a conjugate base/acid?
by megangeorge-1K
Thu Jan 17, 2019 10:30 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q<K
Replies: 4
Views: 123

Q<K

when Q<K, will more products form because the forward reaction is favored?
by megangeorge-1K
Thu Jan 17, 2019 11:16 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Acid and Base Equilibria
Replies: 7
Views: 117

Re: Acid and Base Equilibria

For this week should we be submitting homework from chapter 12?
by megangeorge-1K
Sun Jan 13, 2019 8:17 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equilibrium 1A module
Replies: 2
Views: 48

Equilibrium 1A module

While I was taking the module one question asked about when a reaction "lies to the right" and a follow up question asked when the "equilibrium shifted to the right" would both of these wordings produce the same K-value? I feel like I worded this question very weirdly sorry.
by megangeorge-1K
Sun Jan 13, 2019 8:13 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: equilibrium
Replies: 4
Views: 60

equilibrium

What does it mean if the "equilibrium sits to the lift" or the "equilibrium sits to the right"?
by megangeorge-1K
Sun Jan 13, 2019 8:12 pm
Forum: Ideal Gases
Topic: K value
Replies: 8
Views: 170

K value

why is K= 1 rare?
by megangeorge-1K
Thu Jun 14, 2018 1:56 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH formula
Replies: 5
Views: 269

Re: pH formula

alright thank you!
by megangeorge-1K
Thu Jun 14, 2018 11:41 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: 4.7 and 4.9
Replies: 1
Views: 146

4.7 and 4.9

In 4.7 the shape of SOCl2 is trigonal pyramidal
in 4.9 the shape of ICl3 is T-shaped.
How do we determine the difference between the two shapes?
by megangeorge-1K
Thu Jun 14, 2018 10:56 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH formula
Replies: 5
Views: 269

pH formula

will we be provided the equation for calculating pH on the final?
by megangeorge-1K
Wed Jun 13, 2018 11:37 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: strong acids
Replies: 4
Views: 332

strong acids

In lecture we learned that strong acids are almost completely ionized in a solution. What does that mean?
by megangeorge-1K
Wed Jun 13, 2018 11:22 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VESPER Theory and Bond types
Replies: 3
Views: 218

Re: VESPER Theory and Bond types

I don't believe that you can determine which bond is actually the sigma or the pi bond. I think we just have to focus on what determines making a sigma bond or a pi bond
by megangeorge-1K
Wed Jun 13, 2018 11:11 pm
Forum: Ionic & Covalent Bonds
Topic: ionic character
Replies: 11
Views: 1052

Re: ionic character

what is the difference between something being ionic or dipole?
by megangeorge-1K
Wed Jun 13, 2018 9:43 pm
Forum: Lewis Structures
Topic: lewis structure
Replies: 10
Views: 288

Re: lewis structure

oh ok thank you!
by megangeorge-1K
Wed Jun 13, 2018 8:58 pm
Forum: Lewis Structures
Topic: lewis structure
Replies: 10
Views: 288

lewis structure

I'm drawing a blank, when drawing a lewis structure what determines which element goes in the middle?
by megangeorge-1K
Tue Jun 12, 2018 11:33 am
Forum: Dipole Moments
Topic: Dipole Moment understanding
Replies: 5
Views: 340

Re: Dipole Moment understanding

the reponses are really helpful regarding dipole movement. So for clarification dipole movement results in the molecule being polar?
by megangeorge-1K
Tue Jun 12, 2018 11:17 am
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: lecture 6/6 [ENDORSED]
Replies: 3
Views: 353

Re: lecture 6/6 [ENDORSED]

thank you so much!
Very helpful!
by megangeorge-1K
Sat Jun 09, 2018 6:45 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: lecture 6/6 [ENDORSED]
Replies: 3
Views: 353

lecture 6/6 [ENDORSED]

Hello
I was not able to attend lecture on Wednesday, 6/6. Does anyone possibly have the notes from that lecture?

Thank you!
by megangeorge-1K
Tue May 22, 2018 9:09 pm
Forum: Ionic & Covalent Bonds
Topic: 3.27 part C
Replies: 1
Views: 67

3.27 part C

hello the question asks to give the chemical formula for the following compounds and I understand how to do parts A and B but part C has be confused. The compound is manganese(IV) oxide. The answer is MnO2 but I'm not entirely sure how to get it. I think its the element Mn that is confusing me If an...
by megangeorge-1K
Wed May 09, 2018 8:33 am
Forum: Trends in The Periodic Table
Topic: Ionization exceptions [ENDORSED]
Replies: 8
Views: 764

Re: Ionization exceptions [ENDORSED]

what are the ionization exceptions again? and for clarification there are exceptions because these ions are more stable in the exceptions form?
by megangeorge-1K
Mon May 07, 2018 10:32 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: homework week 6
Replies: 3
Views: 174

homework week 6

for section this week are able to turn in problems from chapter 2 or chapter 3?
by megangeorge-1K
Wed May 02, 2018 11:21 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Electron configuration
Replies: 8
Views: 192

Re: Electron configuration

This clears up a lot! Thank you! Another quick question though for clarification. I know that paired electrons have opposite spins but why do they have opposite spins? Is it due to their charge or is it because no two electrons can have the same four quantum numbers or because of something else? I'...
by megangeorge-1K
Wed May 02, 2018 11:17 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: nodal plane
Replies: 1
Views: 58

nodal plane

hello,
In lecture Dr. Lavelle explained that the p-, d-, and f- orbitals have a nodal plane while the s- orbital does not... how do these orbitals have nodal planes?
thank you
by megangeorge-1K
Mon Apr 30, 2018 4:28 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: 3d and 4s orbitals
Replies: 3
Views: 149

Re: 3d and 4s orbitals

so the 3d orbital is lower in energy than the 4s orbital?
by megangeorge-1K
Sun Apr 29, 2018 8:41 pm
Forum: DeBroglie Equation
Topic: homework problems [ENDORSED]
Replies: 5
Views: 233

Re: homework problems [ENDORSED]

alright thank you!
by megangeorge-1K
Sun Apr 29, 2018 5:29 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Electron configuration
Replies: 8
Views: 192

Re: Electron configuration

in class we had an example of writing the electron configuration of Calcium and we were able to write it as: [Ar]4s^2... why are we able to use Argon to write the electron configuration?
by megangeorge-1K
Sun Apr 29, 2018 5:20 pm
Forum: DeBroglie Equation
Topic: homework problems [ENDORSED]
Replies: 5
Views: 233

Re: homework problems [ENDORSED]

what problem is that in the textbook?
by megangeorge-1K
Sun Apr 29, 2018 2:34 pm
Forum: DeBroglie Equation
Topic: homework problems [ENDORSED]
Replies: 5
Views: 233

homework problems [ENDORSED]

hello,
what problems are we able to turn in for homework this week?
by megangeorge-1K
Fri Apr 20, 2018 9:27 pm
Forum: Properties of Light
Topic: amplitude and intensity
Replies: 11
Views: 337

Re: amplitude and intensity

thank you so much!
by megangeorge-1K
Fri Apr 20, 2018 9:02 pm
Forum: Properties of Light
Topic: amplitude and intensity
Replies: 11
Views: 337

amplitude and intensity

Does anyone know if we will be tested on amplitude and intensity on Test 2? Its in section 1.2

thank you :)
by megangeorge-1K
Tue Apr 17, 2018 10:32 pm
Forum: Properties of Light
Topic: units for frequency and wavelength [ENDORSED]
Replies: 9
Views: 259

units for frequency and wavelength [ENDORSED]

what are the proper units for frequency and wavelength?

Thank You!
by megangeorge-1K
Fri Apr 13, 2018 7:54 pm
Forum: Properties of Light
Topic: avogadro's number
Replies: 5
Views: 198

avogadro's number

in lecture today, Dr. Lavelle mentioned something about having to divide by avogadro's number when regarding the energy it takes to remove an electron. I'm not quite sure why it is we have to divide by avogradro's number or when we would have to. I'm also not sure if this question makes any sense lo...
by megangeorge-1K
Mon Apr 09, 2018 7:52 pm
Forum: SI Units, Unit Conversions
Topic: E. 15 help
Replies: 2
Views: 134

Re: E. 15 help

that makes sense now thank you for explaining!
by megangeorge-1K
Fri Apr 06, 2018 12:24 pm
Forum: SI Units, Unit Conversions
Topic: E. 15 help
Replies: 2
Views: 134

E. 15 help

I saw a previous post regarding E. 15 that was very helpful but I am still wondering how do we know we are supposed the 34.02g in order to get the 40.08g which is the molar mass of Ca?
Thank you!
by megangeorge-1K
Fri Apr 06, 2018 10:23 am
Forum: Molarity, Solutions, Dilutions
Topic: G. 9 [ENDORSED]
Replies: 2
Views: 135

G. 9 [ENDORSED]

hello everyone! I was hoping that someone could possibly explain to me question G. 9 A chemist studying the properties of photographic emulsions needed to prepare 500.0 mL of 0179 m AgNO3 (aq). What mass of silver nitrate must be placed into a 500.0 mL volumetric flask, dissolved, and diluted to the...

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