Search found 104 matches
- Sat Mar 14, 2020 10:27 pm
- Forum: Balancing Redox Reactions
- Topic: oxidation numbers
- Replies: 4
- Views: 493
oxidation numbers
How do you find the oxidation numbers of elements to balance redox reactions?
- Sat Mar 14, 2020 10:26 pm
- Forum: Balancing Redox Reactions
- Topic: cathode vs anode
- Replies: 11
- Views: 856
cathode vs anode
When given cell notation, how can you tell which is the anode or the cathode?
- Sat Mar 14, 2020 10:25 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: isolated system Drawing
- Replies: 4
- Views: 483
isolated system Drawing
How are isolated systems exposed to constant external pressures?
- Sat Mar 14, 2020 10:24 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: closed system
- Replies: 43
- Views: 1679
closed system
Why is it that closed systems prevent volume changes?
- Sat Mar 14, 2020 10:23 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: specific vs molar
- Replies: 4
- Views: 806
specific vs molar
What is the difference between specific heat capacity and molar heat capacity?
- Sun Mar 08, 2020 11:55 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius Theory
- Replies: 3
- Views: 309
Arrhenius Theory
What is the Arrhenius Theory and how can we use it to model a reaction?
- Sun Mar 08, 2020 11:47 pm
- Forum: Zero Order Reactions
- Topic: straight line to fit data
- Replies: 5
- Views: 467
straight line to fit data
What does having a straight line when plotting data tell us?
- Sun Mar 08, 2020 11:42 pm
- Forum: General Rate Laws
- Topic: rate of reaction
- Replies: 1
- Views: 192
rate of reaction
What does it mean when we say the rate of a reaction depends on the reaction mechanism?
- Sun Mar 08, 2020 11:41 pm
- Forum: General Rate Laws
- Topic: Integrated Rate Laws
- Replies: 3
- Views: 237
Integrated Rate Laws
What kind of information do we obtain from integrated rate laws?
- Sun Mar 08, 2020 11:34 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: purpose
- Replies: 4
- Views: 372
purpose
What is the purpose of using the Arrhenius equation?
- Sun Mar 01, 2020 9:34 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: reactant vs product
- Replies: 4
- Views: 442
reactant vs product
Why do we focus on [R] when finding initial rates rather than [P] ?
- Sun Mar 01, 2020 9:08 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: determine n
- Replies: 16
- Views: 1444
Re: determine n
n represents the order of the reactant, which in turn gives insight into the mechanism of the reaction.
- Sun Mar 01, 2020 9:02 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: first order
- Replies: 8
- Views: 656
first order
What does it mean when a reaction is first order?
- Sun Mar 01, 2020 9:01 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: initial reaction rates
- Replies: 2
- Views: 198
initial reaction rates
How does comparing initial reaction rates help us with determining the forward and reverse reaction rates?
- Sun Mar 01, 2020 8:52 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: thermo or kinetics?
- Replies: 9
- Views: 783
thermo or kinetics?
What is the biggest factor that we should take into account when trying to determine whether thermodynamics or kinetics controls a certain reaction?
- Sun Feb 23, 2020 4:54 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: salt bridge
- Replies: 10
- Views: 711
Re: salt bridge
a salt bridge allows ion transfer
- Sun Feb 23, 2020 4:11 pm
- Forum: Van't Hoff Equation
- Topic: what does it do?
- Replies: 13
- Views: 1027
Re: what does it do?
It helps us calculate the K at different temperatures (if we know the standard DeltaH)
- Sun Feb 23, 2020 3:38 pm
- Forum: Balancing Redox Reactions
- Topic: spontaneous
- Replies: 15
- Views: 883
spontaneous
Is it when the standard reduction potential is a positive or negative value that a reduction is spontaneous?
- Sun Feb 23, 2020 3:22 pm
- Forum: Balancing Redox Reactions
- Topic: Half Reactions
- Replies: 12
- Views: 876
Half Reactions
What is a "half reaction"?
- Sun Feb 23, 2020 3:19 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Spontaneous
- Replies: 23
- Views: 1265
Re: Spontaneous
If DeltaG is less than 0 at a certain composition of the reaction mixture, then the forward reaction is spontaneous. If DeltaG is greater than 0 at a certain composition of the reaction mixture then the reverse reaction is spontaneous.
- Sun Feb 16, 2020 9:11 pm
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: What is residual entropy?
- Replies: 16
- Views: 4943
Re: What is residual entropy?
Is there a difference between residual and positional entropy?
- Sun Feb 16, 2020 9:07 pm
- Forum: Ideal Gases
- Topic: Equation
- Replies: 4
- Views: 442
Equation
What does each variable in this equation represent?
- Sun Feb 16, 2020 9:05 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Irreversible Expansion
- Replies: 7
- Views: 480
Re: Irreversible Expansion
A visual my TA provided regarding irreversible expansion would be if you had a piston with some external pressure acting on it and also some weight in the form of sand holding down on the piston. Irreversible expansion would be taking out the sand grain by grain until there is no more sand and thus ...
- Sun Feb 16, 2020 9:00 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Isochoric
- Replies: 8
- Views: 620
Isochoric
What does isochoric mean?
- Sun Feb 16, 2020 8:59 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Reversible vs Irreversible
- Replies: 5
- Views: 437
Re: Reversible vs Irreversible
How can you tell a process is reversible or irreversible without having a visual/picture?
- Sun Feb 09, 2020 11:43 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Q and K
- Replies: 3
- Views: 252
Q and K
Why do we need to compare the values of Q and K?
- Sun Feb 09, 2020 11:38 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: extensive vs intensive
- Replies: 4
- Views: 288
extensive vs intensive
What is the difference between an extensive property and an intensive property?
- Sun Feb 09, 2020 11:37 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs Free Energy calculation
- Replies: 3
- Views: 244
Re: Gibbs Free Energy calculation
Why do we need to use the concept of Gibbs Free Energy?
- Sun Feb 09, 2020 11:35 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Positional/Residual Entropy
- Replies: 3
- Views: 221
Positional/Residual Entropy
What makes positional/residual entropy different from entropy in general?
- Sun Feb 09, 2020 11:33 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: DeltaH
- Replies: 2
- Views: 130
DeltaH
What is DeltaH and how do we use it in relation to thermodynamics?
- Sun Feb 02, 2020 11:50 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Universe Closed System
- Replies: 3
- Views: 300
Universe Closed System
Can someone clarify how the universe can be identified as a closed system?
- Sun Feb 02, 2020 11:49 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: ∆U
- Replies: 8
- Views: 395
∆U
What does ∆U represent in an equation?
- Sun Feb 02, 2020 11:46 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Thermodynamics Laws
- Replies: 4
- Views: 162
Thermodynamics Laws
What are the differences between the first, second, and third laws with regards to using them in equations?
- Sun Feb 02, 2020 11:44 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Piston Example
- Replies: 3
- Views: 148
Piston Example
Can someone summarize the piston example that was discussed in lecture?
- Sun Feb 02, 2020 11:43 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Isolated System Drawing
- Replies: 3
- Views: 208
Isolated System Drawing
Can someone explain the isolated system drawing Dr. Lavelle drew in lecture? What does the cloud-like drawing surrounding the flask represent?
- Sun Jan 26, 2020 11:48 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Signs for enthalpy
- Replies: 8
- Views: 531
Re: Signs for enthalpy
Positive enthalpies are equivalent to endothermic reactions that take up heat. Enthalpies can be expressed as negative when a reaction is exothermic and therefore releases heat and warms the surroundings.
- Sun Jan 26, 2020 11:45 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: The 3 methods
- Replies: 4
- Views: 166
Re: The 3 methods
Why is it necessary to know all three methods?
- Sun Jan 26, 2020 11:45 pm
- Forum: Phase Changes & Related Calculations
- Topic: ∆H
- Replies: 17
- Views: 696
Re: ∆H
What does DeltaH represent?
- Sun Jan 26, 2020 11:41 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess's Law
- Replies: 9
- Views: 462
Re: Hess's Law
When do we use Hess's Law?
- Sun Jan 26, 2020 11:40 pm
- Forum: Phase Changes & Related Calculations
- Topic: State Property
- Replies: 6
- Views: 213
State Property
Can someone define state property for me please? Thank you.
- Thu Jan 23, 2020 7:41 pm
- Forum: Student Social/Study Group
- Topic: Sapling Learning
- Replies: 4
- Views: 367
Sapling Learning
To anyone who has the Sapling Learning supplement, what are your thoughts on it and how has it helped you?
- Sun Jan 19, 2020 10:09 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Acid and Base Concentration
- Replies: 3
- Views: 152
Acid and Base Concentration
Can we determine whether an acid or base is weak or strong by calculating their concentrations?
- Sun Jan 19, 2020 9:57 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Quadratic Equation
- Replies: 8
- Views: 392
Quadratic Equation
When/why do we use the quadratic equation in terms of chemical equilibrium?
- Sun Jan 19, 2020 9:46 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Test 1
- Replies: 6
- Views: 349
Re: Test 1
What would you say are the best ways to practice for the test?
- Sun Jan 19, 2020 9:40 am
- Forum: Ideal Gases
- Topic: PV=nRT
- Replies: 13
- Views: 724
PV=nRT
When would we use this equation in relation to chemical equilibrium?
- Sun Jan 19, 2020 9:38 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Acids and Bases Ice Box
- Replies: 5
- Views: 176
Re: Acids and Bases Ice Box
What is the purpose of an ICE Box?
- Sun Jan 12, 2020 10:42 pm
- Forum: Ideal Gases
- Topic: ICE Table
- Replies: 9
- Views: 528
Re: ICE Table
What is an ICE table?
- Sun Jan 12, 2020 10:25 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Concentration
- Replies: 6
- Views: 257
Concentration
Why do we not use units for concentration?
- Sun Jan 12, 2020 10:02 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Partial Pressure
- Replies: 19
- Views: 771
Re: Partial Pressure
What exactly is partial pressure and how does it relate to chemical equilibrium?
- Sun Jan 12, 2020 10:01 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Q
- Replies: 10
- Views: 405
Q
What is the purpose of finding Q? Is it just to determine the direction of the reaction?
- Sun Jan 12, 2020 9:59 pm
- Forum: Ideal Gases
- Topic: Law of Mass Action
- Replies: 3
- Views: 192
Law of Mass Action
In the textbook, it discusses the law of mass action and how it relates to equilibrium, but I can't seem to grasp the idea. Could someone clarify what the law is and how it relates to chemical equilibrium?
- Sun Dec 08, 2019 5:42 am
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 7
- Views: 629
Re: Study tips
I have also found that Khan Academy is good for review and studying.
- Sun Dec 08, 2019 5:40 am
- Forum: Student Social/Study Group
- Topic: Grades
- Replies: 14
- Views: 1028
Re: Grades
I have heard that if you receive 250 points out of the 500 you should be able to pass the class with a C-
- Sun Dec 08, 2019 5:38 am
- Forum: Student Social/Study Group
- Topic: Practice Final
- Replies: 17
- Views: 1437
Re: Practice Final
The marshmallow review session and going over old tests would be a good way to review since there was no practice final.
- Sun Dec 08, 2019 5:36 am
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 7
- Views: 629
Re: Study tips
Using the Marshmallow and Dino Nuggets review problems have also been helpful for me.
- Sun Dec 08, 2019 5:35 am
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: Strong Acids
- Replies: 2
- Views: 218
Strong Acids
How can you tell whether an acid is strong or weak? Would you consider relative acidity to do so?
- Sun Dec 01, 2019 11:56 pm
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: seesaw
- Replies: 4
- Views: 272
seesaw
What exactly is the conjugate seesaw and why is it important?
- Sun Dec 01, 2019 11:53 pm
- Forum: Polyprotic Acids & Bases
- Topic: ligands
- Replies: 4
- Views: 445
ligands
In what ways are ligands relevant to the topic of acids and bases?
- Sun Dec 01, 2019 11:52 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: Relative Acidity
- Replies: 2
- Views: 217
Relative Acidity
Why is it that the resulting anion after a strong acid easily loses an H+ must be stable?
- Sun Dec 01, 2019 11:50 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: identifying acids and bases
- Replies: 4
- Views: 366
Re: identifying acids and bases
An acid is considered a Lewis acid if an electron pair can be accepted. A Lewis base would be considered an electron pair donor.
- Sun Dec 01, 2019 11:48 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: How to tell
- Replies: 3
- Views: 315
Re: How to tell
To further elaborate, Bronsted acids are considered proton donors. It is a Lewis acid if an electron pair is accepted. A Bronsted base is considered a proton receptor. A Lewis base is considered an electron pair donor.
- Sun Dec 01, 2019 11:45 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: Neutralization
- Replies: 3
- Views: 532
Re: Neutralization
What is the purpose of neutralization?
- Sun Nov 24, 2019 11:45 pm
- Forum: Naming
- Topic: polydentate?
- Replies: 7
- Views: 483
Re: polydentate?
What exactly does the suffix "-dentate" refer to?
- Sun Nov 24, 2019 11:40 pm
- Forum: *Molecular Orbital Theory Applied To Transition Metals
- Topic: coordination compound
- Replies: 2
- Views: 1088
Re: coordination compound
What does a coordination compound refer to and why are they necessary?
- Sun Nov 24, 2019 11:37 pm
- Forum: Conjugate Acids & Bases
- Topic: Cojugate Acids and Bases
- Replies: 10
- Views: 2223
Re: Cojugate Acids and Bases
Can someone clarify what a conjugate acid or conjugate base is exactly?
- Sun Nov 24, 2019 11:35 pm
- Forum: Lewis Acids & Bases
- Topic: When does a complex become a chelate?
- Replies: 3
- Views: 258
Re: When does a complex become a chelate?
Also, to add on to the previous comment, the central atom should be a central metal atom.
- Sun Nov 24, 2019 11:31 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Ligands
- Replies: 5
- Views: 358
Re: Ligands
Can someone explain what exactly a ligand is?
- Sun Nov 17, 2019 8:30 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Same Molecular Formula, Different Shape
- Replies: 2
- Views: 253
Same Molecular Formula, Different Shape
What causes a molecule to have a different molecular shape than another molecule with the same molecular formula such as in the case of pentane and 2, 2 dimethylpropane?
- Sun Nov 17, 2019 8:01 pm
- Forum: Hybridization
- Topic: Hydrogen Bonding
- Replies: 2
- Views: 105
Hydrogen Bonding
My TA said hydrogen bonding would appear on Test 2. Could someone explain to me or give me and example of how this could appear on the test? Like what kind of problem should we expect on this topic?
- Sun Nov 17, 2019 7:58 pm
- Forum: Hybridization
- Topic: VSEPR Models
- Replies: 1
- Views: 93
VSEPR Models
What is the difference between a VSEPR Model and a Lewis Structure?
- Sun Nov 17, 2019 2:46 pm
- Forum: Hybridization
- Topic: Homework Outline for Test
- Replies: 5
- Views: 297
Homework Outline for Test
Which homework outlines should we be focusing on in preparation for Test 2?
- Sun Nov 17, 2019 2:37 pm
- Forum: Hybridization
- Topic: Test 2 Topics
- Replies: 11
- Views: 723
Test 2 Topics
Could someone please provide a list of what we should expect to be on Test 2? Thank you!
- Fri Nov 08, 2019 2:34 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Shape of Molecule
- Replies: 5
- Views: 320
Shape of Molecule
Just to clarify, differences in characteristics such as boiling point of two different molecules that have the same molecular formula can be attributed to their different shapes?
- Fri Nov 08, 2019 2:32 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: polarizability/polarizing power and periodicity
- Replies: 2
- Views: 160
Re: polarizability/polarizing power and periodicity
What is the difference between polarizability and polarizing power?
- Fri Nov 08, 2019 2:31 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Dispersion forces
- Replies: 6
- Views: 249
Re: Dispersion forces
What exactly is a dispersion force?
- Fri Nov 08, 2019 2:30 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Instantaneous dipole moment
- Replies: 5
- Views: 183
Re: Instantaneous dipole moment
Can someone clarify what "instantaneous dipole moment" means/refers to?
- Fri Nov 08, 2019 2:22 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Iterionic and Intermolecular force difference
- Replies: 1
- Views: 98
Iterionic and Intermolecular force difference
What is the difference between interionic forces and intermolecular attractive forces?
- Sun Nov 03, 2019 8:08 pm
- Forum: Sigma & Pi Bonds
- Topic: Quantum Numbers
- Replies: 9
- Views: 635
Quantum Numbers
What is the importance/significance of knowing the quantum numbers of orbitals?
- Sun Nov 03, 2019 8:05 pm
- Forum: Electronegativity
- Topic: which bond
- Replies: 4
- Views: 262
Re: which bond
If the electronegativity difference is between 1.5 and 2 then it is a mix of the two bonds.
- Sun Nov 03, 2019 8:04 pm
- Forum: Lewis Structures
- Topic: Which element at center of the structure
- Replies: 6
- Views: 536
Re: Which element at center of the structure
The element with the lowest ionization energy or the element with the least electronegativity is the central atom.
- Sun Nov 03, 2019 8:01 pm
- Forum: Resonance Structures
- Topic: Drawing Resonance Structures
- Replies: 3
- Views: 296
Re: Drawing Resonance Structures
I believe you can either draw all of the possible structures or draw the "actual structure", which is a hybrid of a molecule's resonance structures.
- Sun Nov 03, 2019 7:57 pm
- Forum: Electronegativity
- Topic: Electronegativity
- Replies: 9
- Views: 415
Re: Electronegativity
It is also helpful to keep in mind that electronegativity increases as it gets closer to Flourine on the periodic table.
- Mon Oct 28, 2019 4:36 pm
- Forum: Administrative Questions and Class Announcements
- Topic: 10/28 Updates due to Fire [ENDORSED]
- Replies: 14
- Views: 1945
Re: 10/28 Updates due to Fire [ENDORSED]
Yes, that is the session I am referring to @Rebecca! Thank you so much!
- Mon Oct 28, 2019 2:38 pm
- Forum: Administrative Questions and Class Announcements
- Topic: 10/28 Updates due to Fire [ENDORSED]
- Replies: 14
- Views: 1945
Re: 10/28 Updates due to Fire [ENDORSED]
Is the midterm review session at 6 today also cancelled? Thank you!
- Sun Oct 27, 2019 11:43 pm
- Forum: Lewis Structures
- Topic: Lone Pairs
- Replies: 12
- Views: 612
Re: Lone Pairs
Can lone pairs become bonds?
- Sun Oct 27, 2019 11:39 pm
- Forum: Ionic & Covalent Bonds
- Topic: Covalent Bonds
- Replies: 14
- Views: 1132
Re: Covalent Bonds
Covalent bonds form between nonmetals whereas ionic bonds are formed when electrons transfer from metal to nonmetal. This is because nonmetals don't form cations and therefore share electrons to form covalent bonds.
- Sun Oct 27, 2019 11:33 pm
- Forum: Resonance Structures
- Topic: Octet
- Replies: 13
- Views: 868
Re: Octet
The octet rule refers to the covalent bonds that atoms share until a noble gas configuration is reached.
- Sun Oct 27, 2019 11:31 pm
- Forum: Resonance Structures
- Topic: Resonance Structure meaning
- Replies: 6
- Views: 380
Re: Resonance Structure meaning
Resonance is a blending of structures with the same atom arrangement but different electron arrangements.
- Sun Oct 27, 2019 11:27 pm
- Forum: Lewis Structures
- Topic: Lewis symbols
- Replies: 5
- Views: 311
Re: Lewis symbols
There should be a total number of 8 valence electrons (think octet rule).
- Sun Oct 20, 2019 11:35 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger's Equation
- Replies: 2
- Views: 217
Re: Schrodinger's Equation
What does each variable in the Schrodinger equation shown above represent?
- Sun Oct 20, 2019 11:29 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Multi-electron atoms
- Replies: 7
- Views: 317
Re: Multi-electron atoms
What additional factors effect electron energy in multi-electron atoms?
- Sun Oct 20, 2019 11:28 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger equation
- Replies: 4
- Views: 193
Re: Schrodinger equation
How does the Schrodinger equation apply to orbitals?
- Sun Oct 20, 2019 11:26 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Advice for studying
- Replies: 92
- Views: 8908
Re: Advice for studying
Rewatching Dr. Lavelle's video modules, doing the homework/practice problems, and attending step-up sessions have been very helpful for me in terms of studying and trying to really understand the material!
- Sun Oct 20, 2019 11:23 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: s-, p-, d- ,f- orbitals
- Replies: 10
- Views: 505
Re: s-, p-, d- ,f- orbitals
Just to clarify, why are s, p, d, and f orbitals categorized like this? Is it because of their differences in their nodal planes, number of orbitals, energy levels, etc.? Thank you!
- Sat Oct 12, 2019 5:06 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Frequency
- Replies: 15
- Views: 755
Re: Frequency
Frequency and energy are directly proportional in that when frequency increases so does the kinetic energy. This causes electrons to be ejected.
- Sat Oct 12, 2019 4:38 pm
- Forum: Properties of Electrons
- Topic: Wave Properties of Electrons
- Replies: 4
- Views: 166
Re: Wave Properties of Electrons
Also, it was mentioned during lecture that electrons must have wavelike properties because they give rise to a diffraction pattern that result from interacting waves.
- Sat Oct 12, 2019 4:30 pm
- Forum: Properties of Electrons
- Topic: Measuring wavelike properties
- Replies: 3
- Views: 145
Re: Measuring wavelike properties
The reason the cutoff is 10^-15m is simply because that is because wavelength properties that are anything less than that are not detectable.
- Sat Oct 12, 2019 4:19 pm
- Forum: Einstein Equation
- Topic: Atomic Spectra
- Replies: 3
- Views: 261
Re: Atomic Spectra
The question may be similar to chemical yield questions asking how the theoretical yield compares to the actual yield. In this case, the question may be asking to compare spectroscopic results (similar to the theoretical yield or what the supposed results are) to what is actually calculated in the e...
- Sat Oct 12, 2019 3:45 pm
- Forum: Properties of Light
- Topic: Intensity of Light
- Replies: 4
- Views: 182
Re: Intensity of Light
Increasing the intensity of light increases the number of photons. However, to eject an electron, the frequency needs to increase to increase the kinetic energy and thus release/eject the electron. The energy per photon has to be greater or equal to the energy needed to remove an electron.
- Thu Oct 03, 2019 10:34 pm
- Forum: Limiting Reactant Calculations
- Topic: Clarification
- Replies: 4
- Views: 394
Re: Clarification
Yes the limiting reactant will get you to your theoretical/maximum yield because the limiting reactant limits the total amount of product formed.