Search found 76 matches
- Sun Mar 17, 2019 11:26 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius equation
- Replies: 2
- Views: 581
Re: Arrhenius equation
Thanks, that makes sense
- Sun Mar 17, 2019 11:22 am
- Forum: Second Order Reactions
- Topic: Termolecular
- Replies: 43
- Views: 2457
Termolecular
What is termolecular?
- Sun Mar 17, 2019 11:00 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius equation
- Replies: 2
- Views: 581
Arrhenius equation
How would we know when exactly to use the Arrhenius equation?
- Sun Mar 17, 2019 10:20 am
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: What are the steps in the process of of rusting?
- Replies: 1
- Views: 578
Re: What are the steps in the process of of rusting?
Rust is when iron is exposed to water, causing Fe to oxidize into Fe2+. Water acts as the oxidizing agent for Fe so the dissolved ions present in water are what get reduced. The more dissolved ions in water, the faster rust happens.
- Sun Mar 17, 2019 10:18 am
- Forum: Calculating Work of Expansion
- Topic: Reversible vs irreversible
- Replies: 2
- Views: 572
Re: Reversible vs irreversible
It is more a question of whether the process itself is reversible. The problem will usually tell u if it is reversible or irreversible. If it is reversible, deltaS of the system will equal the negative of deltaS of surroundings. Work itself is based on if the rxn is isothermal, in which deltaU is 0 ...
- Sun Mar 17, 2019 9:35 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: pKa and pKb
- Replies: 4
- Views: 732
pKa and pKb
If we are given the acid and it’s pKa, but we want to solve for the pH of its base, do we need to convert pKa to pKb?
- Sat Mar 16, 2019 7:35 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Relation between Q and Gibbs Free Energy
- Replies: 4
- Views: 772
Re: Relation between Q and Gibbs Free Energy
To clarify if Q>K the reaction would want to shift in the reverse way to make more reactants in order to reach K. Since this will make the reverse rxn more favorable than the forward rxn, the forward rxn will not be spontaneous, and thus, delta G is 0.
- Sat Mar 16, 2019 7:33 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Relation between Q and Gibbs Free Energy
- Replies: 4
- Views: 772
Re: Relation between Q and Gibbs Free Energy
Greater than 0 because it will be non spontaneous
- Sat Mar 16, 2019 5:20 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Inclusion of ions in the cell diagram
- Replies: 1
- Views: 258
Inclusion of ions in the cell diagram
How do we know when to include the ions playing a part in the reaction, but that don’t get oxidized or reduced, such as H+, OH-, or any other ion into the cell diagram?
- Sat Mar 16, 2019 5:10 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 6L7 c 7th edition
- Replies: 1
- Views: 259
6L7 c 7th edition
Why does the solutions manual throw in KOH into the anode portion of the cell diagram when K plays no part of the reaction??
- Sat Mar 16, 2019 5:09 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 6L7 b 7th edition
- Replies: 1
- Views: 239
6L7 b 7th edition
Ok so I have no idea what is going on with this redox reaction. It doesn’t look like any species is oxidized or reduced, and I’m having trouble following the solutions manual when it balances the half reactions. Can someone please explain this one?
- Sun Mar 10, 2019 11:04 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: Units of k
- Replies: 7
- Views: 1066
Units of k
Why are the units of k different between different reaction orders ?
- Wed Mar 06, 2019 4:28 pm
- Forum: Zero Order Reactions
- Topic: Example of a zero order rxn
- Replies: 4
- Views: 573
Example of a zero order rxn
What would be an example of a zero order reaction? I’m having some trouble understanding what it means conceptually.
- Sun Mar 03, 2019 1:55 pm
- Forum: General Rate Laws
- Topic: unique rate
- Replies: 2
- Views: 291
unique rate
What is meant by the "unique" rate of a reaction?
- Sun Mar 03, 2019 1:50 pm
- Forum: General Rate Laws
- Topic: Initial reaction rates
- Replies: 2
- Views: 329
Initial reaction rates
Why do we mostly just focus on the initial reaction rates as opposed to the rate later in the reaction?
- Sat Mar 02, 2019 10:51 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: E vs E naught
- Replies: 5
- Views: 715
E vs E naught
What is the difference between E and E naught?
- Sat Mar 02, 2019 10:50 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: Reaction order
- Replies: 3
- Views: 452
Reaction order
What exactly does the reaction order mean?
- Tue Feb 12, 2019 10:25 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Delta U
- Replies: 2
- Views: 344
Delta U
How do we know when delta U is zero given the context of a problem?
- Tue Feb 12, 2019 9:28 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Calculating entropy for a has given a temperature change
- Replies: 1
- Views: 239
Calculating entropy for a has given a temperature change
How do you know when to use deltaS=nRln(T2/T1) versus deltaS=nCln(T2/T1) whenever a gas goes through a temperature change?
- Tue Feb 12, 2019 5:35 pm
- Forum: Phase Changes & Related Calculations
- Topic: Slope of heating curve
- Replies: 8
- Views: 3367
Slope of heating curve
Why does a higher heat capacity mean a less steep slope?
- Thu Feb 07, 2019 11:46 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Reversible vs irreversible
- Replies: 3
- Views: 561
Reversible vs irreversible
What exactly is meant by a “reversible” process or an “irreversible” process in the context of thermodynamics?
- Wed Feb 06, 2019 3:24 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: 3R/2 vs 5R/2
- Replies: 1
- Views: 479
3R/2 vs 5R/2
When calculating q for an ideal monatomic gas with the equation q=nCdeltaT, how do we know when to use 5R/2 versus 3R/2 for C?
- Wed Feb 06, 2019 2:58 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: nR vs kb in entropy equations (lecture 2/6)
- Replies: 1
- Views: 233
Re: nR vs kb in entropy equations (lecture 2/6)
kb (the Boltzmann constant) is equal to R (the gas constant) divided by Avogadro’s number. Basically, this relates the energy level for each particle.
- Wed Feb 06, 2019 2:44 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: Isothermal reaction
- Replies: 3
- Views: 636
Isothermal reaction
What exactly is the difference between an isothermal reaction and a non isothermal reaction?
- Mon Feb 04, 2019 11:18 am
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Friday 02/01/2019 lecture
- Replies: 2
- Views: 346
- Sun Feb 03, 2019 9:27 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Friday 02/01/2019 lecture
- Replies: 2
- Views: 346
Friday 02/01/2019 lecture
Hello, I was absent for the Friday 02/01/2019 lecture and was wondering if anyone could share the notes of what we learned in lecture that day. Thanks!
- Sun Jan 27, 2019 10:17 pm
- Forum: Phase Changes & Related Calculations
- Topic: State properties
- Replies: 3
- Views: 303
State properties
I am kind of confused as to what constitutes a state property. Can someone give an example explaining what does and doesn't constitute a state property? Thanks!
- Sun Jan 27, 2019 10:14 pm
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy H(r)
- Replies: 1
- Views: 262
Re: Enthalpy H(r)
Although a phase change does not change in temperature, energy is still inputted into the system in order to break the inter-molecular forces between molecules. There is much more energy required for a phase change from a liquid to gas than there is for a phase change from solid to liquid, so when y...
- Wed Jan 23, 2019 9:51 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: ACIDS AND BASES: What to do with very dilute acid
- Replies: 2
- Views: 189
Re: ACIDS AND BASES: What to do with very dilute acid
I believe if we come out with any concentration for H3O+ that is smaller than 10^-7 we should still consider it as slightly acidic but very close to neutral since we know that autoprotolysis generates 10^-7 mol/L of H3O+, so it wouldnt make sense of our H3O+ concentration was less than that. If we d...
- Mon Jan 21, 2019 10:02 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Chemical Equilibrium part 4 post module assessment question #12
- Replies: 2
- Views: 263
Chemical Equilibrium part 4 post module assessment question #12
For #12, why does an increase in pressure on the system not cause a shift in neither the reactants nor products side?
- Thu Jan 17, 2019 8:17 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 11.21 7th edition
- Replies: 1
- Views: 178
Re: 11.21 7th edition
U can solve for pH given the pOH given the following equation:
pH+pOH=14.
pH=14-pOH
When u solve for pH then u can find the molarity of the substance using this equation:
-log[concentration of substance]=pH
concentration of substance=10^(-pH)
pH+pOH=14.
pH=14-pOH
When u solve for pH then u can find the molarity of the substance using this equation:
-log[concentration of substance]=pH
concentration of substance=10^(-pH)
- Mon Jan 14, 2019 8:26 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Temperature and the equilibrium constant
- Replies: 2
- Views: 303
Temperature and the equilibrium constant
Why does a change in temperature result in a change in the equilibrium constant for a reaction? Is temperature the only thing that can alter the equilibrium constant or are there other variables that can affect it as well?
- Thu Jan 10, 2019 2:19 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Explaining Q<K and Q>K [ENDORSED]
- Replies: 7
- Views: 2327
Re: Explaining Q<K and Q>K [ENDORSED]
First, remember that Q=[products]/[reactants] at an instantaneous given time not at equilibrium. So when Q<K, it indicates that there is a higher concentration of reactants in the denominator than for the ratio for K, thus resulting in a smaller number for Q. Since we want the reaction to proceed to...
- Thu Jan 10, 2019 2:10 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 7th Edition 5.H.3
- Replies: 1
- Views: 159
7th Edition 5.H.3
Can someone explain why we have to multiply the 2 K values together when combining the 2 separate reactions together as opposed to adding them?
- Mon Jan 07, 2019 9:38 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Heterogeneous equilibrium
- Replies: 3
- Views: 281
Heterogeneous equilibrium
Lets say we have a chemical reaction at equilibrium where one of products/reactants is a gas and another one of the products/reactants is aqueous. When calculating the equilibrium constant for a specific case like this, would we just use the concentration of the aqueous reactant/product and the part...
- Sun Dec 09, 2018 12:33 am
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: Strong/weak acids and bases
- Replies: 2
- Views: 333
Strong/weak acids and bases
How would we be able to tell if a given acid/base is strong or weak?
- Sat Dec 08, 2018 10:41 am
- Forum: Amphoteric Compounds
- Topic: HW problem 6.21 (7th edition)
- Replies: 1
- Views: 459
HW problem 6.21 (7th edition)
In this question why can the nitrogens accept protons, but not the oxygens? In general, how can we tell if an atom/molecule can accept a proton or not?
- Fri Dec 07, 2018 9:11 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Polydentate
- Replies: 11
- Views: 1189
Polydentate
How can we tell if a ligand is polydentate so that we know whether to use bis-, tris-, tetrakis-, etc?
- Fri Dec 07, 2018 4:45 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Polyprotic acids
- Replies: 1
- Views: 271
Polyprotic acids
Why is Ka1>Ka2>Ka3?
- Fri Dec 07, 2018 1:09 pm
- Forum: Bond Lengths & Energies
- Topic: Bond strength & resonance structures
- Replies: 2
- Views: 685
Re: Bond strength & resonance structures
Oh I almost forgot. Since the resonance bonds are longer than a double bond but shorter than a single bond, they will be stronger than a single bond, but weaker than a double bond, since bond length is inversely proportional to bond strength.
- Fri Dec 07, 2018 1:07 pm
- Forum: Bond Lengths & Energies
- Topic: Bond strength & resonance structures
- Replies: 2
- Views: 685
Re: Bond strength & resonance structures
Say you have a resonance molecule that has 3 bonding pairs and 2 are single bonds and one is a double bond. However, we can move around that double bond to the other bonding pair positions to form 3 resonance structures. In the real world, the bonds of resonance structures are the average of the res...
- Tue Dec 04, 2018 5:14 pm
- Forum: Naming
- Topic: Which nonmetal do we name first if the ligand has 2 of them?
- Replies: 1
- Views: 92
Which nonmetal do we name first if the ligand has 2 of them?
If a conplex ion has 2 nobmetals in it, how do we know which one we name first? For example in [Co(NH3)5(SO4)]+, which nonmetal will we name first?
- Mon Dec 03, 2018 1:04 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Oxoacids
- Replies: 1
- Views: 198
Oxoacids
What causes oxoacids to be stronger acids if the atom that O is bonded to is more electronegative?
- Sun Dec 02, 2018 11:32 pm
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: “Soapy” feel of bases
- Replies: 5
- Views: 2557
“Soapy” feel of bases
Dr. Lavelle refers to bases as having a “soapy” feel. Why is it exactly that causes bases to feel this way and what is its significance?
- Sun Dec 02, 2018 11:30 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Calculating
- Replies: 2
- Views: 323
Calculating
Are we supposed to know how to calculate pH for acids and bases? If so, how is it calculated?
- Sun Dec 02, 2018 11:26 pm
- Forum: Naming
- Topic: Metal Suffix
- Replies: 2
- Views: 489
Re: Metal Suffix
-ate is added as a suffix to the transition metal if the whole ligand itself has an overall negative charge.
- Sun Dec 02, 2018 11:24 pm
- Forum: Naming
- Topic: Transition Metal in naming
- Replies: 2
- Views: 360
Re: Transition Metal in naming
I think that’s just how it is because it makes turning the compound into a single, long word easier that way than having the metal name come first.
- Wed Nov 28, 2018 10:11 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polarity
- Replies: 5
- Views: 643
Re: Polarity
The NO2 Lewis structure has a central N atom that is double bonded to one oxygen and single bonded to another oxygen. Since this molecule has an odd number of valence electrons (17), it is a free radical, in which N will have a lone, unpaired electron. This unpaired electron acts as a lone pair, pus...
- Wed Nov 28, 2018 10:06 pm
- Forum: Hybridization
- Topic: Sulfur Trioxide Hybridization
- Replies: 4
- Views: 5224
Re: Sulfur Trioxide Hybridization
If you look at the Lewis structure of this molecule, a central S atom is bonded to 3 O atoms. Each S-O bond is a double bond, and S has no lone pairs. Thus, S has 3 regions of electron density (a double bond counts as a single region of electron density, and there are 3 of them, hence 3 regions of e...
- Wed Nov 28, 2018 9:56 pm
- Forum: Biological Examples
- Topic: acids
- Replies: 5
- Views: 428
acids
Why is it that we can ingest vinegar, but if it is poured into a cut, it hurts?
- Mon Nov 26, 2018 8:52 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: Ionic bonds and polarizing power
- Replies: 1
- Views: 228
Ionic bonds and polarizing power
Can someone please review how ionic bonds can have covalent character and how certain cations can form ionic bonds with more polarizing power and thus more covalent character?
- Mon Nov 26, 2018 12:55 pm
- Forum: Biological Examples
- Topic: Chelating compounds
- Replies: 2
- Views: 155
Chelating compounds
Can someone please explain why chelating compounds can form multiple bonds with the same metal, and why just any other coordination compound cannot do the same?
- Tue Nov 20, 2018 5:51 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Homework
- Replies: 2
- Views: 409
Homework
Can someone please explain 2F5 letters b and c (7th edition) in the homework? I am having a hard time understanding the whole hybridization concept, so I’d be quite grateful if someone could summarize it for me. Thanks!
- Tue Nov 13, 2018 2:43 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Last Friday 11/09/18 lecture
- Replies: 2
- Views: 300
- Mon Nov 12, 2018 9:56 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Last Friday 11/09/18 lecture
- Replies: 2
- Views: 300
Last Friday 11/09/18 lecture
Does anyone have the notes for last Friday’s lecture? Thanks.
- Wed Nov 07, 2018 8:14 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Wednesday 11/07/2018 lecture notes
- Replies: 1
- Views: 216
Wednesday 11/07/2018 lecture notes
Hello, I missed the lecture today due to traveling for athletics and I was wondering if someone could provide me with the notes. I would also appreciate if someone can send me a link to the bruincast video for this lecture (if it exists). Thanks!
- Mon Nov 05, 2018 6:56 am
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: PROBLEM 1A.15 (7th edition)
- Replies: 2
- Views: 592
Re: PROBLEM 1A.15 (7th edition)
Great thanks!
- Mon Nov 05, 2018 6:56 am
- Forum: Ionic & Covalent Bonds
- Topic: Ionic character [ENDORSED]
- Replies: 5
- Views: 636
Re: Ionic character [ENDORSED]
I think for a question like this he would have to give you the electronegativity values just because it is hard to decipher the electronegativity comparisons just by looking at the periodic trends.
- Sat Nov 03, 2018 9:18 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionic character [ENDORSED]
- Replies: 5
- Views: 636
Ionic character [ENDORSED]
Why is CF4 more ionic than CH4? To me it seems that the electronegativity difference is more between C and H than between C and F just because H is farther from C than F is. Is there something else that I didn’t put into account?
- Sat Nov 03, 2018 4:44 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: PROBLEM 1A.15 (7th edition)
- Replies: 2
- Views: 592
PROBLEM 1A.15 (7th edition)
In this question it says that the emission of energy leads to the spectral line at 102.6 nm for the wavelength. If there is an emission of energy, then doesn’t that mean that the energy goes from a higher energy level to an lower energy level? If that is the case, then why does the answer say that t...
- Fri Nov 02, 2018 1:17 pm
- Forum: Ionic & Covalent Bonds
- Topic: electronegativity troughout a covalent bond
- Replies: 3
- Views: 465
electronegativity troughout a covalent bond
So remember how in covalent bonds the electrons aren't shared perfectly equally so one atom is slightly positive and the other is slightly negative? Is the atom that is slightly more negative the one that is more electronegative?
- Fri Nov 02, 2018 1:09 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Tungsten
- Replies: 2
- Views: 281
Re: Tungsten
I don't have that answer to that, but id like to know why as well
- Wed Oct 31, 2018 1:01 pm
- Forum: Resonance Structures
- Topic: General guideline for drawing structures
- Replies: 4
- Views: 423
Re: General guideline for drawing structures
For the easy structures u will not have to do much work since there are no exceptions. However for resonance, u can tell because the molecule will be the same just with the double bond occurring in either side. Calculate the formal charge just to make sure it is resonance. For the free radical eleme...
- Tue Oct 30, 2018 8:29 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Cu2+ configuration
- Replies: 2
- Views: 296
Cu2+ configuration
Can someone please explain why the electron configuration for Cu2+ is [Ar]3d^9 and not [Ar]3d^8 4s^1? Thanks!
- Sun Oct 28, 2018 3:18 pm
- Forum: Ionic & Covalent Bonds
- Topic: Friday 10/26/18 lecture
- Replies: 4
- Views: 559
Friday 10/26/18 lecture
Hello, I was absent for Friday’s lecture and I was wondering if anyone could give me a thorough recap of what Dr. Lavelle talked about. Thanks!
- Wed Oct 24, 2018 11:53 am
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Pauli Exclusion Principle vs. Hund's Rule
- Replies: 2
- Views: 2474
Re: Pauli Exclusion Principle vs. Hund's Rule
The Pauli Exclusion Principle states that there can be no more than 2 electrons per orbital. For an orbital that has the full amount of 2 electrons, they must be spin paired, meaning one spins up while the other spins down. Hunds rules states that electrons in the same sub shell occupy different orb...
- Wed Oct 24, 2018 11:32 am
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: wavelength/frequency impact on determinacy?
- Replies: 2
- Views: 339
Re: wavelength/frequency impact on determinacy?
I also forgot that u asked about frequency. If frequency increases then wavelength decreases since wavelength*frequency=the speed of light, where the speed of light is a constant. Thus, if frequency decreases the wavelength increases. Now that you know what happened to wavelength, then you can use t...
- Wed Oct 24, 2018 11:30 am
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: wavelength/frequency impact on determinacy?
- Replies: 2
- Views: 339
Re: wavelength/frequency impact on determinacy?
If the indeterminacy in wavelength increases, then the indeterminacy in momentum will decrease since by the de Broglie relationship (wavelength=h/p) wavelength and momentum are inversely proportional to each other. Thus, if the indeterminacy in momentum decreases, then the indeterminacy in position ...
- Wed Oct 24, 2018 11:05 am
- Forum: Trends in The Periodic Table
- Topic: Electronegativaty
- Replies: 2
- Views: 215
Re: Electronegativaty
*To clarify I meant why does chromium like it’s 3d orbitals half full while copper likes it to be completely full?
- Wed Oct 24, 2018 11:03 am
- Forum: Trends in The Periodic Table
- Topic: Electronegativaty
- Replies: 2
- Views: 215
Electronegativaty
Why is it that the exception elements Chromium and Copper take an electron from the 4s orbital and toss it into the 3d orbital? I know it is because they don’t want to have the 5th 3d orbital to be empty, since they like all of them to be half full, but I guess the extent of my question goes to why ...
- Mon Oct 22, 2018 1:13 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: s, p, d, f subshells in multi-electron atoms
- Replies: 6
- Views: 595
Re: s, p, d, f subshells in multi-electron atoms
@ bonnie_schmitz_3K
Actually, 3d comes before 4s, given that 4s is fully occupied, because 3d has a lower energy state than 4s.
Actually, 3d comes before 4s, given that 4s is fully occupied, because 3d has a lower energy state than 4s.
- Fri Oct 19, 2018 1:09 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: s, p, d, f subshells in multi-electron atoms
- Replies: 6
- Views: 595
s, p, d, f subshells in multi-electron atoms
What exactly is it that causes an s-electron to have lower energy than a p-electron in the same shell?
- Thu Oct 18, 2018 10:26 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Rydberg equation
- Replies: 2
- Views: 320
Rydberg equation
If an electron jumping to higher energy levels indicates that there is more positive energy, then why is the value for E sub n in the Rydberg equation still a negative value?
- Thu Oct 18, 2018 7:18 pm
- Forum: Student Social/Study Group
- Topic: Need notes for 10/17
- Replies: 2
- Views: 321
Re: Need notes for 10/17
We learned about the Schrodinger wave function. We can use a wave function Ψ (psi) to describe an electron with wavelike properties and indeterminacy in position and momentum. Ψ represents the height of the wave @ position x, y, z. Ψ^2 represents the probability of finding an electron. the wave func...
- Wed Oct 17, 2018 5:06 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger's Equation Confused
- Replies: 1
- Views: 442
Re: Schrodinger's Equation Confused
I'd say you are right on. Perhaps to add a little more, the Schrodinger equation we are learning about, H(psi)=E(psi), is time independent. The time-independent equation considers the electron's quantum state to not be changing, and thus considers the electron to be a standing wave. Also, to be put ...
- Tue Oct 16, 2018 11:10 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: subshells & orbitals
- Replies: 1
- Views: 217
subshells & orbitals
Can someone please explain how we write the subshell notation and the number of orbitals, given the quantum numbers n, l, and/or m?