Search found 100 matches
- Sun Mar 15, 2020 9:46 pm
- Forum: Zero Order Reactions
- Topic: Units
- Replies: 9
- Views: 827
Re: Units
Units for K in a zero order reaction is m/s
- Sun Mar 15, 2020 9:42 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Deriving the equation
- Replies: 4
- Views: 421
Re: Deriving the equation
You set the two equations for delta G equal to each other since they both give delta G
- Sun Mar 15, 2020 9:41 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Activation Energy and Energy of a Reaction
- Replies: 10
- Views: 626
Activation Energy and Energy of a Reaction
I wasn't sure where to categorize this post but how does changing temperature change the rate of reaction?
- Sun Mar 15, 2020 9:39 pm
- Forum: General Rate Laws
- Topic: Overall Order
- Replies: 6
- Views: 424
Re: Overall Order
Overall order of the reaction is derived by adding the exponents of the elements in the rate of reaction. It is the addition of all the order of each of the elements in the reaction.
- Sun Mar 15, 2020 9:38 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Affecting E cell
- Replies: 4
- Views: 412
Re: Affecting E cell
Changing the concentrations of the Ecell will change it from Ecell Standard to Ecell
- Sun Mar 08, 2020 11:56 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: E cell
- Replies: 9
- Views: 635
Re: E cell
Ecell is the cell potential for the half reaciton and Estandard cell is the overall cell potential
- Sun Mar 08, 2020 11:55 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: E potential
- Replies: 8
- Views: 564
Re: E potential
Yes if it is a galvanic cell
- Sun Mar 08, 2020 11:47 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: G=-nFe
- Replies: 7
- Views: 838
Re: G=-nFe
n should be the same for redox reactions
- Sun Mar 08, 2020 11:46 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell diagram
- Replies: 7
- Views: 433
Re: Cell diagram
You use commas to separate them rather than I
- Sun Mar 08, 2020 11:45 pm
- Forum: Second Order Reactions
- Topic: [A] v. Time
- Replies: 27
- Views: 1232
Re: [A] v. Time
The second order is linear
- Sun Mar 01, 2020 11:59 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Nernst Equation Use
- Replies: 3
- Views: 330
Nernst Equation Use
When do we use the Nernst equation?
- Sun Mar 01, 2020 11:59 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Nernst
- Replies: 10
- Views: 647
Nernst
What is nernst equation?
- Sun Mar 01, 2020 11:58 pm
- Forum: Balancing Redox Reactions
- Topic: E cell and Standard
- Replies: 2
- Views: 216
E cell and Standard
What is the difference between E cell and standard E cell
- Sun Mar 01, 2020 11:58 pm
- Forum: Balancing Redox Reactions
- Topic: Left and Right
- Replies: 4
- Views: 369
Left and Right
Why do we need to do the left and right side reactions separately
- Sun Mar 01, 2020 11:57 pm
- Forum: Balancing Redox Reactions
- Topic: Anode and Xathod
- Replies: 9
- Views: 555
Anode and Xathod
What is the difference between an anode and cathode?
- Sun Mar 01, 2020 11:57 pm
- Forum: Balancing Redox Reactions
- Topic: Determining direction of flow
- Replies: 15
- Views: 812
Re: Determining direction of flow
The direction of flow is left to right
- Sun Mar 01, 2020 11:23 pm
- Forum: Administrative Questions and Class Announcements
- Topic: what to know for test 2
- Replies: 10
- Views: 621
Re: what to know for test 2
Test 2 covers the second page of Thermodynamics and all of electrochemistry
- Sun Feb 23, 2020 11:16 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Reverse Reaction
- Replies: 1
- Views: 189
Reverse Reaction
Is a reaction within a galvanic cell, will it ever reach equilibrium and will we need to find the constants?
- Sun Feb 23, 2020 11:12 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Balancing Equations
- Replies: 5
- Views: 391
Balancing Equations
How do you determine what is being oxidized or reduced? By looking at the oxidation number?
- Sun Feb 23, 2020 11:10 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: State
- Replies: 5
- Views: 404
State
How do you figure out the physical states?
- Sun Feb 23, 2020 11:08 pm
- Forum: Balancing Redox Reactions
- Topic: Oxidation Number
- Replies: 3
- Views: 440
Oxidation Number
How do you get an oxidation number?
- Sun Feb 23, 2020 11:05 pm
- Forum: Balancing Redox Reactions
- Topic: Acidic and Basic
- Replies: 3
- Views: 244
Acidic and Basic
How do you know if a solution is acidic or basic?
- Sun Feb 09, 2020 10:21 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Midterm Material
- Replies: 10
- Views: 551
Re: Midterm Material
The first page of outline 4 will be on the midterm
- Sun Feb 09, 2020 10:15 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Ideal Gasses
- Replies: 2
- Views: 178
Ideal Gasses
Do we always assume that reactions have ideal gasses?
- Sun Feb 09, 2020 10:14 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: qp=deltaH
- Replies: 6
- Views: 374
Re: qp=deltaH
qp I think is the heat in a reaction under constant pressure and delta H is the change in enthalpy. Therefore, in a system, given ideal gasses, the heat is equal to a change in enthalpy.
- Sun Feb 09, 2020 10:11 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: 4A3.c
- Replies: 1
- Views: 111
Re: 4A3.c
For this problem, q=0 therefore the 28J of work is the change in heat
- Sun Feb 09, 2020 10:09 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Cv and Cp
- Replies: 3
- Views: 104
Re: Cv and Cp
I think what Renee tried to say was that constant pressure is when the system is explicitly at constant pressure
- Wed Feb 05, 2020 1:03 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Reversible vs Irreversible
- Replies: 4
- Views: 261
Reversible vs Irreversible
How do you know if a reaction is reversible?
- Sun Feb 02, 2020 11:45 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bond Enthalpies
- Replies: 2
- Views: 103
Bond Enthalpies
How do you calculate bond enthalpies
?
?
- Sun Feb 02, 2020 11:44 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess's Law
- Replies: 7
- Views: 542
Hess's Law
Can someone explain Hess's Law because I have tried to look it up and still do not understand
- Sun Feb 02, 2020 11:36 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Car Engine
- Replies: 4
- Views: 230
Car Engine
How is a car engine an open system?
- Sun Feb 02, 2020 11:33 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Delta H and U
- Replies: 3
- Views: 120
Delta H and U
What is the difference between H and U?
- Sun Feb 02, 2020 11:32 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Open/Closed/Isolated System
- Replies: 3
- Views: 113
Open/Closed/Isolated System
Closed systems are when mass is conserved but energy can be interchangeable. Can it go the other way as well?
- Sun Jan 26, 2020 8:53 pm
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy Calculations
- Replies: 5
- Views: 147
Enthalpy Calculations
Will we need to memorize the enthalpy formulas for phase changes such as liquid to vapor?
- Sun Jan 26, 2020 8:50 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Standard Enthalpies of Formation
- Replies: 4
- Views: 110
Standard Enthalpies of Formation
Is the standard enthalpies... a constant or something that we will calculate?
- Sun Jan 26, 2020 8:49 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bond Enthalpies
- Replies: 2
- Views: 144
Bond Enthalpies
Will we ever have to calculate bond enthalpies for solids or liquids or did I miss something in class?
- Sun Jan 26, 2020 8:47 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bond Enthalpies
- Replies: 3
- Views: 149
Bond Enthalpies
How are the H-values of the bonds found? Are they supposed to be given or?
- Sun Jan 26, 2020 8:47 pm
- Forum: Calculating Work of Expansion
- Topic: Work Units
- Replies: 3
- Views: 131
Work Units
What is work supposed to be measured in?
- Sun Jan 26, 2020 3:39 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess's Law
- Replies: 2
- Views: 141
Hess's Law
How did Dr. Lavelle add the reactions used in lecture on Wednesday? There were two reactions N2+O2 -> 2NO where deltaH = 18kJ. How did he add the two reactions together?
- Sun Jan 19, 2020 10:40 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Acids and Bases
- Replies: 2
- Views: 90
Acids and Bases
Why doesn't water affect equilibrium?
- Sun Jan 19, 2020 10:33 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Acids and Bases
- Replies: 1
- Views: 78
Acids and Bases
Do we ever have to figure out how long it'll take for a reaction to reach equilibrium.
- Sun Jan 19, 2020 10:32 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: ICE Table
- Replies: 2
- Views: 113
ICE Table
Are acids and bases always in equilibrium?
- Sun Jan 19, 2020 10:31 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: ICE Table
- Replies: 4
- Views: 262
ICE Table
How do we know what to subtract X from/by in the "Change"
- Sun Jan 19, 2020 10:30 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: ICE
- Replies: 3
- Views: 114
ICE
How do we know when to use an ICE table?
- Sun Jan 12, 2020 6:24 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: memorization
- Replies: 12
- Views: 603
Re: memorization
You shouldn't need to. If you can't calculate the K value then it should be given to you
- Sun Jan 12, 2020 6:15 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Application of La Chatelier's
- Replies: 3
- Views: 144
Application of La Chatelier's
How do we know when to apply La Chatelier's?
- Sun Jan 12, 2020 6:14 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K units
- Replies: 3
- Views: 112
K units
why is there no unit for K? If there is, what is it?
- Sun Jan 12, 2020 6:13 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K and Q
- Replies: 10
- Views: 314
K and Q
What is the difference between K and Q if they are calculated the same way?
- Sun Jan 12, 2020 6:12 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Calculating K
- Replies: 9
- Views: 247
Calculating K
Why is water not accounted for in calculating for K?
- Sun Dec 08, 2019 11:45 pm
- Forum: Hybridization
- Topic: Charges
- Replies: 9
- Views: 1094
Re: Charges
If the formal charge on an atom is not zero then it is good to label it. You would then add up the formal charges in the molecule and label that outside brackets to depict the overal charge of the molecule.
- Sun Dec 08, 2019 11:44 pm
- Forum: Resonance Structures
- Topic: Delocalization
- Replies: 6
- Views: 613
Re: Delocalization
Generally when there is resonance in the Lewis Structure there is also delocalization
- Sun Dec 08, 2019 11:41 pm
- Forum: Naming
- Topic: ion at end of name
- Replies: 4
- Views: 454
Re: ion at end of name
Ion ya the end means that there is nothing to bond to the complex ion
- Sun Dec 08, 2019 11:40 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: bent v. angular
- Replies: 27
- Views: 1530
Re: bent v. angular
Bent and angular are the same!
- Sun Dec 08, 2019 11:39 pm
- Forum: General Science Questions
- Topic: Coordination Compounds
- Replies: 7
- Views: 613
Re: Coordination Compounds
Yes it helps with naming and doing oxidation
- Sun Dec 08, 2019 11:39 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty
- Replies: 7
- Views: 873
Re: Uncertainty
Yes
- Sun Dec 08, 2019 11:37 pm
- Forum: Administrative Questions and Class Announcements
- Topic: curve
- Replies: 8
- Views: 662
Re: curve
Maybe but we won’t know until grades come out!
- Sun Dec 01, 2019 11:27 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student - Part II [ENDORSED]
- Replies: 298
- Views: 278369
Re: Advice from a Medical Student - Part II [ENDORSED]
I'm worried that I won't do good in one of my classes this quarter, to the point where I might have to retake it. Will that severely hurt my chances of applying to medical school?
- Sun Dec 01, 2019 11:24 pm
- Forum: Bronsted Acids & Bases
- Topic: Final Breakdown
- Replies: 1
- Views: 164
Final Breakdown
Does anyone have any idea on what the breakdown of the final will be? Like will it have more new material or equal parts of all?
- Sun Dec 01, 2019 11:20 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Final Information
- Replies: 2
- Views: 127
Final Information
When will Dr. Lavelle release the final information?
- Sun Dec 01, 2019 11:16 pm
- Forum: Lewis Acids & Bases
- Topic: Difference between Lewis and Bronsted
- Replies: 4
- Views: 306
Difference between Lewis and Bronsted
What is the difference between Lewis and Bronsted acid/bases?
- Sun Dec 01, 2019 11:12 pm
- Forum: Amphoteric Compounds
- Topic: Determining Acidic or Basic
- Replies: 2
- Views: 238
Determining Acidic or Basic
If a compound is amphoteric, do we leave it as that or is it more acidic than basic or vice versa?
- Sun Nov 24, 2019 10:26 pm
- Forum: Hybridization
- Topic: Why does hybridization occur
- Replies: 3
- Views: 214
Why does hybridization occur
Why do molecules hybridize?
- Sun Nov 24, 2019 10:21 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Drawing molecules
- Replies: 7
- Views: 491
Drawing molecules
Will we ever have to draw molecules in such a way similar to what was on the test? Like with a hexagon and everything or is that in a future chemistry class?
- Sun Nov 24, 2019 10:18 pm
- Forum: Student Social/Study Group
- Topic: A joke to brighten your day
- Replies: 3
- Views: 193
A joke to brighten your day
Two chemists walk into a bar.
One says, “I’ll have an H2O.” The other says, “I’ll have an H2O, too.” The second chemist dies.
One says, “I’ll have an H2O.” The other says, “I’ll have an H2O, too.” The second chemist dies.
- Sun Nov 24, 2019 10:15 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Final
- Replies: 10
- Views: 582
Final
Is the final cumulative?
- Sun Nov 24, 2019 10:15 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar vs. Nonpolar
- Replies: 3
- Views: 219
Polar vs. Nonpolar
I took the test Friday and was really confused by a problem. If a molecule has 4 of the same bond atoms then it is non-polar(CH4). That is because the electronegativity values are the same. However if there are two of the same and two different shouldn't it also be non-polar? Sure the electronegativ...
- Sun Nov 24, 2019 10:10 pm
- Forum: Hybridization
- Topic: Bond Strength
- Replies: 2
- Views: 162
Bond Strength
Does hybridization affect bond strength? If so, how?
- Sun Nov 17, 2019 10:19 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: vsepr angles
- Replies: 10
- Views: 492
Re: vsepr angles
I would say so because they will most likely be on the test this week and it is helpful to know so make the process of finding the shapes easier.
- Sun Nov 17, 2019 10:16 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: AXE Formula
- Replies: 4
- Views: 287
Re: AXE Formula
As far as the lectures that have covered VSEPR so far, I do not believe so. However if you are having trouble memorizing the shapes then I highly suggest making flashcards!
- Wed Nov 13, 2019 5:13 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Memorizing and Recognizing Molecular Shapes
- Replies: 4
- Views: 245
Memorizing and Recognizing Molecular Shapes
In Topic 2E of the textbook, there are 12 molecular shapes listed. Are those all the ones we need to be able to recognize or are there more or less? Furthermore, do we need to know the bond angles that correspond with those shapes?
- Sun Nov 10, 2019 11:54 pm
- Forum: Bond Lengths & Energies
- Topic: Corny Chemistry Pick up lines
- Replies: 1
- Views: 132
Corny Chemistry Pick up lines
Are you made of copper and tellurium? Because you're CuTe!
- Sun Nov 10, 2019 11:52 pm
- Forum: Bond Lengths & Energies
- Topic: Veteran's Day Jokes
- Replies: 1
- Views: 155
Veteran's Day Jokes
Why did the noble gas cry(me)?
Because all his friends argon:(
Because all his friends argon:(
- Sun Nov 10, 2019 11:51 pm
- Forum: Bond Lengths & Energies
- Topic: Jokes
- Replies: 1
- Views: 89
Jokes
"That was sodium funny"............
"I slapped my neon that one"
"I slapped my neon that one"
- Sun Nov 10, 2019 11:49 pm
- Forum: Bond Lengths & Energies
- Topic: Chemistry Jokes
- Replies: 1
- Views: 73
Chemistry Jokes
Why shouldn't we trust atoms......................................they make up everything
- Sun Nov 10, 2019 11:33 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Lengths
- Replies: 2
- Views: 132
Bond Lengths
Why would bond lengths differ between single bonds and multiple bonds?
- Sun Nov 10, 2019 11:31 pm
- Forum: Electronegativity
- Topic: Formula for Difference
- Replies: 7
- Views: 523
Formula for Difference
Do we ever need to know or use the equation for the difference in electronegativity in two elements?
- Mon Nov 04, 2019 5:26 pm
- Forum: *Shrodinger Equation
- Topic: Shrodinger equation
- Replies: 7
- Views: 523
Re: Shrodinger equation
From all the review sessions and office hours I attended, I don't think it will be but I'd be familiar with the concept just in case.
- Sun Nov 03, 2019 8:09 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Finding electron configurations
- Replies: 4
- Views: 257
Finding electron configurations
How do you find the electron configuration using noble gases? I understand that you need to list the noble gas from the previous period but how do you count afterwards? Say for example we are trying to find the electron configuration of Gallium(Ga) as well as the electron configuration of Niobium(Nb)
- Sun Nov 03, 2019 8:04 pm
- Forum: Lewis Structures
- Topic: Resonance Structure
- Replies: 4
- Views: 284
Re: Resonance Structure
If the question explicitly asks for you to draw all the resonance structures then yes but I would just to be safe
- Sun Oct 27, 2019 8:32 pm
- Forum: Resonance Structures
- Topic: Delocalization
- Replies: 6
- Views: 417
Delocalization
What does it mean for an electron in resonance structures to be delocalized?
- Sun Oct 27, 2019 8:09 pm
- Forum: Resonance Structures
- Topic: Resonance Structures
- Replies: 3
- Views: 195
Resonance Structures
Why would you ever need to move the location of a bond in a Lewis Structure
- Sun Oct 27, 2019 8:05 pm
- Forum: Lewis Structures
- Topic: Orbitals
- Replies: 9
- Views: 497
Orbitals
If we can add an electron 4s^2 then when we need to remove do we also remove from the same orbital?
- Sun Oct 27, 2019 7:56 pm
- Forum: Resonance Structures
- Topic: Formal Charge
- Replies: 5
- Views: 264
Formal Charge
If there is a formal charge, is there such thing as an informal charge?
- Sun Oct 27, 2019 7:53 pm
- Forum: Resonance Structures
- Topic: Octet
- Replies: 13
- Views: 853
Octet
What is an octet, and are there exceptions to an atom isn't an octet?
- Sun Oct 20, 2019 9:48 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Test 1- Q5a
- Replies: 2
- Views: 218
Test 1- Q5a
Can someone please explain 5a on the first test? I used the equation M=mols/volume but got .05M.
- Sun Oct 20, 2019 9:44 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Ground State
- Replies: 5
- Views: 275
Ground State
What does it mean to be "obtain ground state electron configuration"? Is that when the electrons are balanced?
- Sun Oct 20, 2019 9:43 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Pauli Exclusion Prinicple
- Replies: 3
- Views: 201
Pauli Exclusion Prinicple
What does the Pauli Exclusion state in regard to when we are configuring electrons? Why is it that there can be no more than two electrons per orbital?
- Sun Oct 20, 2019 9:35 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Schrodinger's wave function
- Replies: 3
- Views: 155
Re: Schrodinger's wave function
Sin and cos were used to simply represent the shape of the wave function.
- Sun Oct 20, 2019 9:34 pm
- Forum: Properties of Electrons
- Topic: Photons
- Replies: 9
- Views: 344
Re: Photons
If a photon doesn't have enough energy(work function) to eject a photon then nothing will happen. The photon's energy will simply be absorbed by the electron but with no results or consequences.
- Sun Oct 13, 2019 10:33 pm
- Forum: Trends in The Periodic Table
- Topic: Element Names
- Replies: 8
- Views: 1036
Re: Element Names
I think it would be good to know all the names but I have not encountered anything that suggests otherwise.
- Sun Oct 13, 2019 10:31 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Atomic Spectroscopy
- Replies: 1
- Views: 104
Fundamental Equations
Why are the three fundamental equations De Broglie's, Heisenberg's, and Schrodinger? To confirm, we only covered the De Broglie's right
- Sun Oct 13, 2019 10:26 pm
- Forum: General Science Questions
- Topic: oxygen molar mass
- Replies: 2
- Views: 145
Re: oxygen molar mass
i would use 15.999 just to reduce the margin of error and eiminating the opportunities to get a question wrong
- Sun Oct 13, 2019 10:21 pm
- Forum: Properties of Electrons
- Topic: Photons
- Replies: 9
- Views: 344
Re: Photons
Yes, it is possible for a photon to not have enough energy. If it does not then it won't be able to eject an electron. Like in lecture on Week 2, a photon packet overall does not need to have intense energy, but each photon itself must have enough intensity.
- Sun Oct 13, 2019 10:11 pm
- Forum: *Black Body Radiation
- Topic: Black Body
- Replies: 6
- Views: 476
Re: Black Body
A black body is a body that absorbs all electromagnetic radiation such that nothing can escape it and no radiation can resist being "sucked in" per say
- Sun Oct 13, 2019 10:07 pm
- Forum: Properties of Light
- Topic: De Broglie equation
- Replies: 4
- Views: 162
Re: De Broglie equation
You use it to find the wavelength of an object(ie electron)
- Sat Oct 05, 2019 3:46 pm
- Forum: SI Units, Unit Conversions
- Topic: E.23 Part B
- Replies: 3
- Views: 207
E.23 Part B
I am confused as to how the scientific notation would affect the problem. For some reason I cannot seem to have the right scientific notation. I understand the process and work in regards to the problem, however I can't seem to be able to denote the values in correct scientific notation.
- Fri Oct 04, 2019 8:22 am
- Forum: SI Units, Unit Conversions
- Topic: Etext Access for Chem Book
- Replies: 1
- Views: 108
Re: Etext Access for Chem Book
I got my book online but I didn't have a problem. Maybe contact your book supplier/whoever you got it from?
- Fri Oct 04, 2019 8:20 am
- Forum: Significant Figures
- Topic: Lab Sig Figs
- Replies: 2
- Views: 84
Re: Lab Sig Figs
As long as there is a decimal point or is a whole value, there will be sig figs!
- Fri Oct 04, 2019 8:15 am
- Forum: Molarity, Solutions, Dilutions
- Topic: Homework Question G13
- Replies: 2
- Views: 150
Re: Homework Question G13
You multiply by .1L because we need to solve for the mols. We use the formula .05M= (x mols)/.1L
- Fri Oct 04, 2019 8:12 am
- Forum: Properties of Light
- Topic: Speed of Light
- Replies: 41
- Views: 2861
Re: Speed of Light
It does not change, so it is a constant