Search found 107 matches
- Sun Mar 15, 2020 1:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Athena
- Replies: 34
- Views: 3186
Re: Athena
Thank you Dr. Lavelle
- Thu Mar 12, 2020 4:18 pm
- Forum: Balancing Redox Reactions
- Topic: Half Reactions
- Replies: 15
- Views: 830
Re: Half Reactions
It's based off of whether it's acidic or basic. The problem will tell you.
- Wed Mar 11, 2020 8:19 pm
- Forum: General Rate Laws
- Topic: intermediates
- Replies: 12
- Views: 744
Re: intermediates
you are correct!
- Wed Mar 11, 2020 8:14 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Mechanisms
- Replies: 7
- Views: 664
Mechanisms
What exactly are reaction mechanisms?
- Wed Mar 11, 2020 8:13 pm
- Forum: Zero Order Reactions
- Topic: Orders
- Replies: 8
- Views: 500
Orders
How do we know which order the reaction is?
- Wed Mar 11, 2020 7:43 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Format because I posted in 14A by accident
- Replies: 8
- Views: 620
Format because I posted in 14A by accident
As the title mentions, what will the final's format be?
- Wed Mar 11, 2020 7:43 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Format?
- Replies: 11
- Views: 867
Format?
What will the format of the final be?
- Sun Mar 08, 2020 8:34 pm
- Forum: Biological Examples
- Topic: iN relation to ATP
- Replies: 3
- Views: 898
iN relation to ATP
HOw does kinetics affect ATP production?
- Sun Mar 08, 2020 8:33 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: how?
- Replies: 3
- Views: 328
how?
what methods are used to determine n and k?
- Sun Mar 08, 2020 8:32 pm
- Forum: Second Order Reactions
- Topic: Final Exam Equations
- Replies: 10
- Views: 788
Re: Final Exam Equations
I think its still a good idea to know how to derive them conceptually tho.
- Sun Mar 08, 2020 8:31 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Energy Barrier
- Replies: 4
- Views: 310
Re: Energy Barrier
IT's the activation energy, so I dont think it necessarily is the "slow step"
- Sun Mar 08, 2020 8:30 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Problems
- Replies: 6
- Views: 492
Problems
Will there be problems where we have to consider both and compare them?
- Mon Mar 02, 2020 10:58 am
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Kinetics in Test 2?
- Replies: 13
- Views: 826
Re: Kinetics in Test 2?
There will be none.
- Mon Mar 02, 2020 10:58 am
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Metal in a Solution
- Replies: 3
- Views: 289
Re: Metal in a Solution
It depends on how soluble it is.
- Mon Mar 02, 2020 10:57 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Ways to calculate Gibbs free energy
- Replies: 5
- Views: 383
Re: Ways to calculate Gibbs free energy
It depends on what the problem is asking for.
- Mon Mar 02, 2020 10:56 am
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: deriving nernst equation
- Replies: 4
- Views: 288
Re: deriving nernst equation
Just do what the other people said and you will get it :).
- Mon Mar 02, 2020 10:56 am
- Forum: Balancing Redox Reactions
- Topic: Anode and Xathod
- Replies: 9
- Views: 552
Re: Anode and Xathod
anode is oxidation and cathode is reduction.
- Sun Feb 23, 2020 7:59 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: cell diagram
- Replies: 2
- Views: 190
cell diagram
how exactly do we draw a cell diagram?
- Sun Feb 23, 2020 7:57 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Le Chatelier’s Principle
- Replies: 11
- Views: 716
Re: Le Chatelier’s Principle
As mentioned before, the reaction changes in accordance to the ratio of products and reactants.
- Sun Feb 23, 2020 7:55 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Difference
- Replies: 5
- Views: 350
Difference
What's the difference between finding deltaG here vs other problems like in thermodynamics?
- Sun Feb 23, 2020 7:53 pm
- Forum: Balancing Redox Reactions
- Topic: Steps
- Replies: 7
- Views: 430
Steps
how exactly do we balance the reactions? Is it the same as balancing regular reactions?
- Sun Feb 23, 2020 7:52 pm
- Forum: Balancing Redox Reactions
- Topic: Half Reactions
- Replies: 12
- Views: 856
Re: Half Reactions
A half reaction is just one part of the redox reaction, it could be the reduction OR the oxidation of the species
- Thu Feb 13, 2020 9:04 pm
- Forum: Phase Changes & Related Calculations
- Topic: Relation to entropy?
- Replies: 4
- Views: 359
Relation to entropy?
How do phase changes relate to entropy?
- Thu Feb 13, 2020 9:03 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: How do I do? [ENDORSED]
- Replies: 2
- Views: 208
How do I do? [ENDORSED]
What are the different ways I can find out Gibb's free energy? I know theres G = H -ST, but what else is there?
- Thu Feb 13, 2020 9:01 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: Units in Entropy Equation for Volume
- Replies: 5
- Views: 349
Re: Units in Entropy Equation for Volume
I think entropy in general has the same unit: J/K
- Thu Feb 13, 2020 9:00 pm
- Forum: Ideal Gases
- Topic: initial values
- Replies: 6
- Views: 515
Re: initial values
Yes use the initial.
- Thu Feb 13, 2020 8:59 pm
- Forum: Van't Hoff Equation
- Topic: What is this? [ENDORSED]
- Replies: 7
- Views: 501
What is this? [ENDORSED]
What does this equation do for us?
- Sun Feb 09, 2020 11:05 pm
- Forum: Calculating Work of Expansion
- Topic: integration
- Replies: 2
- Views: 102
Re: integration
We can just use the equation thats the result of the integration.
- Sun Feb 09, 2020 11:03 pm
- Forum: Ideal Gases
- Topic: Gas constant
- Replies: 10
- Views: 561
Re: Gas constant
Look at the other units and use the one that matches.
- Sun Feb 09, 2020 11:03 pm
- Forum: Ideal Gases
- Topic: Gas constant
- Replies: 10
- Views: 561
Re: Gas constant
Look at the other units and use the one that matches.
- Sun Feb 09, 2020 11:02 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: reversible reactions
- Replies: 4
- Views: 152
Re: reversible reactions
It will be said if it is reversible.
- Sun Feb 09, 2020 11:01 pm
- Forum: Phase Changes & Related Calculations
- Topic: Phase Change Calculations
- Replies: 5
- Views: 188
Re: Phase Change Calculations
It will be given.
- Sun Feb 09, 2020 11:01 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Kelvin or Celsius?
- Replies: 86
- Views: 5724
Re: Kelvin or Celsius?
Use Kelvin
- Sun Feb 02, 2020 4:03 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: free work
- Replies: 2
- Views: 625
Re: free work
-G means that work is being done by itself, so it is spontaneous, and +G means that work is needed, so it is not spontaneous
- Sun Feb 02, 2020 4:02 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Closed Systems
- Replies: 14
- Views: 941
Re: Closed Systems
In a closed system, pressure can be applied.
- Sun Feb 02, 2020 3:52 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Systems
- Replies: 4
- Views: 202
Re: Systems
Open systems, the gas can move out of the space. Closed systems, something is pushing against the gas so it is somewhat contained. Meanwhile, in an isolated system, energy cannot go in or get out of the system.
- Sun Feb 02, 2020 3:51 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Closed system
- Replies: 5
- Views: 232
Re: Closed system
It can change because something might be pushing against it but the pressure of the gas could push back.
- Sun Feb 02, 2020 3:50 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Standard Enthalpy of Formation
- Replies: 4
- Views: 241
Re: Standard Enthalpy of Formation
The question should give it to you.
- Sat Jan 25, 2020 11:35 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess's Law
- Replies: 7
- Views: 334
Hess's Law
What is this and what can you do with this?
- Sat Jan 25, 2020 11:34 pm
- Forum: Ideal Gases
- Topic: PV=NRT
- Replies: 7
- Views: 304
Re: PV=NRT
we do not need to know that
- Sat Jan 25, 2020 11:31 pm
- Forum: Phase Changes & Related Calculations
- Topic: Entropy vs Enthalpy
- Replies: 9
- Views: 190
Re: Entropy vs Enthalpy
Gibbs free energy = Enthalpy - Temperature * Entropy.
- Sat Jan 25, 2020 11:08 pm
- Forum: Phase Changes & Related Calculations
- Topic: Phase changes
- Replies: 7
- Views: 227
Re: Phase changes
Temp remains constant because the energy is being used for the object to turn into the next phase.
- Sat Jan 25, 2020 11:06 pm
- Forum: Phase Changes & Related Calculations
- Topic: Steam vs Water
- Replies: 6
- Views: 229
Re: Steam vs Water
Steam creates more severe burns because of the energy it has :).
- Sun Jan 19, 2020 4:17 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: lewis structure
- Replies: 11
- Views: 467
Re: lewis structure
We dont need to draw them, but its easier to understand with them.
- Sun Jan 19, 2020 4:16 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Kb vs Ka
- Replies: 5
- Views: 166
Re: Kb vs Ka
as said before, Kb = weak base, Ka = weak acid. Ka * Kb = Kw
- Sun Jan 19, 2020 4:13 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Why is K unitless?
- Replies: 10
- Views: 636
Re: Why is K unitless?
K is simply a ratio between molarities, so that's why it has no units.
- Sun Jan 19, 2020 4:13 pm
- Forum: Ideal Gases
- Topic: Ideal Gas meaning
- Replies: 7
- Views: 417
Re: Ideal Gas meaning
basically, when a gas is ideal, use PV = NRT, but in reality, things are slightly different due to the many different factors that are present.
- Sun Jan 19, 2020 4:12 pm
- Forum: Ideal Gases
- Topic: ICE Table
- Replies: 11
- Views: 842
Re: ICE Table
You have the initial, which is I, then the change in molarity, which is C, then the final equilibrium, which is E
- Sun Jan 12, 2020 3:45 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: What is this?
- Replies: 23
- Views: 1480
What is this?
As title implies, what is Le Chatelier's principle, and how do we apply it?
- Sun Jan 12, 2020 3:44 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Q
- Replies: 6
- Views: 331
Re: Q
If Q < K, then there are not enough product, so reaction goes forward.
If Q>K, then there are not enough reactants, to reaction goes backward.
If Q>K, then there are not enough reactants, to reaction goes backward.
- Sun Jan 12, 2020 3:42 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: When to use Kc vs Kp
- Replies: 7
- Views: 230
When to use Kc vs Kp
As title implies, when do we use each one? Do we use (aq) in Kp? Do we use (g) in Kc?
- Sun Jan 12, 2020 3:40 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Rounding in K problems
- Replies: 4
- Views: 249
Re: Rounding in K problems
I think only the final answer is rounded.
- Sun Jan 12, 2020 3:36 pm
- Forum: Ideal Gases
- Topic: Units of Pressure
- Replies: 8
- Views: 297
Re: Units of Pressure
Usually, he'll give us something we can use to do that so I would not worry about it.
- Sat Dec 07, 2019 10:31 pm
- Forum: Properties of Light
- Topic: relationship between frequency and intensity?
- Replies: 3
- Views: 255
Re: relationship between frequency and intensity?
Intensity is not related to frequency.
- Sat Dec 07, 2019 9:54 pm
- Forum: Amphoteric Compounds
- Topic: acid, base, or amphoteric
- Replies: 4
- Views: 356
Re: acid, base, or amphoteric
you can also look at the conjugate to see if it's stable.
- Sat Dec 07, 2019 9:53 pm
- Forum: Polyprotic Acids & Bases
- Topic: amphiprotic vs amphoteric
- Replies: 2
- Views: 252
Re: amphiprotic vs amphoteric
AMphiprotic means it can accept or give protons, while amphoteric means it can be acid or base. ALl amphiprotic molecules are also amphoteric.
- Sat Dec 07, 2019 9:52 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Strong Acids
- Replies: 3
- Views: 295
Re: Strong Acids
005321227 wrote:are these memorized or should we be able to explain these?
They should be memorized.
- Sat Dec 07, 2019 9:52 pm
- Forum: Lewis Acids & Bases
- Topic: Water
- Replies: 63
- Views: 2960
Re: Water
Water is amphoteric / amphiprotic so it can be both :)
- Sat Nov 30, 2019 8:44 pm
- Forum: Lewis Structures
- Topic: Octet Rule
- Replies: 7
- Views: 658
Re: Octet Rule
Formal charges are better at determining the lewis structure than octet rule I think, especially because at a certain point the octet rule is commonly broken.
- Sat Nov 30, 2019 8:42 pm
- Forum: Biological Examples
- Topic: How many do we need to know?
- Replies: 1
- Views: 144
How many do we need to know?
As the title implies, how many of these do we have to know? What is essential?
- Sat Nov 30, 2019 8:41 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: What is this?
- Replies: 5
- Views: 366
What is this?
What exactly do we have to know regarding ligands, coordination numbers, etc?
- Sat Nov 30, 2019 8:40 pm
- Forum: Lewis Acids & Bases
- Topic: Proton acceptor and proton donor?
- Replies: 33
- Views: 2165
Re: Proton acceptor and proton donor?
Acids are the ones who give the proton, aka H+, while bases are the ones who receive it.
- Sat Nov 30, 2019 8:39 pm
- Forum: Lewis Acids & Bases
- Topic: Nitrate
- Replies: 4
- Views: 258
Re: Nitrate
Nitrate is NO3-, that's it. Its a polyatomic anion i think we're supposed to memorize.
- Sun Nov 24, 2019 5:48 pm
- Forum: Sigma & Pi Bonds
- Topic: Visualizing this
- Replies: 4
- Views: 420
Visualizing this
How exactly should we visualize sigma and pi bonds in a molecule?
- Sun Nov 24, 2019 5:46 pm
- Forum: Hybridization
- Topic: dsp3 vs sp3d
- Replies: 4
- Views: 324
Re: dsp3 vs sp3d
According to Lavelle, it doesn't really matter IIRC.
- Sun Nov 24, 2019 5:45 pm
- Forum: Biological Examples
- Topic: Examples
- Replies: 1
- Views: 189
Examples
What are some examples of biological coordination compounds?
- Sun Nov 24, 2019 5:43 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Definitions
- Replies: 1
- Views: 84
Definitions
What are the important definitions of words in this topic? Such as ligand, coordination number, coordination compound, etc?
Testing
What kind of problems will Lavelle probably give us for this type of topic?
- Sun Nov 17, 2019 9:23 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: single vs. double/triple bonds
- Replies: 4
- Views: 238
Re: single vs. double/triple bonds
Like the above reply, the bonded electrons stay together. At the same time, they're delocalized.
- Sun Nov 17, 2019 9:06 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Radicals
- Replies: 2
- Views: 163
Re: Radicals
I think so, but they DO repel.
- Sun Nov 17, 2019 9:05 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar and Nonpolar
- Replies: 6
- Views: 639
Re: Polar and Nonpolar
Its also important to keep in mind whether there is cis (atoms on one side of the molecule) or trans (atoms on opposite sides of the molecule) because those could affect the polarity of the molecule.
- Sun Nov 17, 2019 9:04 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Sigma vs pi bonds
- Replies: 2
- Views: 214
Sigma vs pi bonds
How do these affect VSEPR?
- Sun Nov 17, 2019 9:02 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Lone Pairs
- Replies: 10
- Views: 562
Re: Lone Pairs
Lone pairs affect molecular geometry because they cause repelling forces against the other atoms in the molecule
- Fri Nov 08, 2019 12:26 pm
- Forum: Dipole Moments
- Topic: How do i know if a molecule has a dipole moment?
- Replies: 7
- Views: 393
Re: How do i know if a molecule has a dipole moment?
If a molecule is not symmetrical, it is probably going to have a dipole moment.
- Fri Nov 08, 2019 12:21 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: Interaction energy
- Replies: 3
- Views: 235
Interaction energy
What exactly is Interaction potential energy?
- Fri Nov 08, 2019 12:16 pm
- Forum: Electronegativity
- Topic: Ionization energy and electronegativity
- Replies: 8
- Views: 803
Re: Ionization energy and electronegativity
electronegativity is usually a combination of ionization energy and electron affinity. That's why they usually have the same periodic trends.
- Fri Nov 08, 2019 12:13 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Polarizing Strength of Cations
- Replies: 8
- Views: 349
Re: Polarizing Strength of Cations
When cations are smaller, that means the Effective nuclear charge is high, meaning it has a larger polarizing power.
- Fri Nov 08, 2019 12:11 pm
- Forum: Ionic & Covalent Bonds
- Topic: Strength of ionic and covalent bonds
- Replies: 5
- Views: 315
Re: Strength of ionic and covalent bonds
Covalent bonds are the strongest. Ionic bonds such as NaCl can get dissociated.
- Fri Nov 08, 2019 12:08 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: Electron Distortion
- Replies: 2
- Views: 200
Re: Electron Distortion
Well atoms are the ones that are polarizable, not electrons when we're talking about electron distortion. Basically, if an atom is more polarizable, it will be more likely to have its electron cloud be distorted because it has a weaker hold over the electrons!
- Sun Nov 03, 2019 2:59 pm
- Forum: *Shrodinger Equation
- Topic: Review
- Replies: 4
- Views: 437
Re: Review
For the review session I went to, the UA went over some concepts and also provided a worksheet and answers.
- Sun Nov 03, 2019 2:57 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Atomic Orbitals in Terms of Probability
- Replies: 6
- Views: 424
Re: Atomic Orbitals in Terms of Probability
Basically the orbitals just represent that if you are within the orbitals, there is a possibility that you'll find the electron there.
- Sun Nov 03, 2019 2:56 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: using indeterminancy
- Replies: 3
- Views: 202
Re: using indeterminancy
Yes multiply 3 by 2 because the full range of the numbers is 6. Also remember to turn delta(p) into mass * delta(v)
- Sun Nov 03, 2019 2:51 pm
- Forum: DeBroglie Equation
- Topic: Determining Wave-like Properties
- Replies: 4
- Views: 160
Re: Determining Wave-like Properties
I'm still confused as to what the relationship between the deBroglie wavelength and the mass is? If an atom has a longer wavelength does that mean it has a lighter mass or? Generally, yes. Atoms with lighter mass tend to have a longer wavelength but be mindful of the velocity thats also involved in...
- Sun Nov 03, 2019 2:46 pm
- Forum: SI Units, Unit Conversions
- Topic: Calculate using kg or g?
- Replies: 13
- Views: 896
Re: Calculate using kg or g?
I think both are fine. Just do what the question is asking, and pay attention to the different units when doing dimensional analysis. For example, remember to convert to kg if you're going to use a formula involving Joules, because Joules is kg * m^2 * s^-2
- Sun Oct 27, 2019 3:11 pm
- Forum: Resonance Structures
- Topic: 'delocalized'
- Replies: 4
- Views: 157
Re: 'delocalized'
Since we don't know where electrons are exactly due to the Heisenberg uncertainty principle, when electrons are "delocalized" they are spread out across the entire molecule.
- Sun Oct 27, 2019 3:09 pm
- Forum: Lewis Structures
- Topic: Bond lengths
- Replies: 3
- Views: 183
Re: Bond lengths
I don't think that's something we'll have to do, because the bond lengths he talked about in class were experimentally observed.
- Sun Oct 27, 2019 3:05 pm
- Forum: Electronegativity
- Topic: Difference between electronegativity, ionization energy, and electron affinity
- Replies: 5
- Views: 4662
Difference between electronegativity, ionization energy, and electron affinity
Hey can someone tell me the differences between these? They get used often but I get confused on which is which sometimes.
- Sun Oct 27, 2019 3:04 pm
- Forum: Resonance Structures
- Topic: Resonance
- Replies: 8
- Views: 212
Re: Resonance
Like others said, the purpose is to show another possible combination of bonds. However, the true bond is somewhere in between due to electrons' wavelike properties.
- Sun Oct 27, 2019 3:03 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Length
- Replies: 4
- Views: 266
Re: Bond Length
To add on, double bonds involve more electrons so the attraction forces are stronger, which causes double bonds to be shorter.
- Sun Oct 20, 2019 8:16 pm
- Forum: *Shrodinger Equation
- Topic: Wave functions
- Replies: 9
- Views: 362
Re: Wave functions
Alexandra Bartolome 4D wrote:Wave functions represent the probability of finding the position of an electron in an atom. They are used to describe an electron, which has wavelike properties and indeterminate momentum/position, in an atom.
Ah ok. What happens if they're negative, though?
- Sat Oct 19, 2019 9:50 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Unit for Avogadro's Number
- Replies: 10
- Views: 2218
Re: Unit for Avogadro's Number
Avogrado's number can be used to describe any unit. It's just that any 1 mole of something = 6.02 x 10^23
- Sat Oct 19, 2019 9:49 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Question regarding definition of molecules
- Replies: 5
- Views: 552
Re: Question regarding definition of molecules
A mole (6.02 x 10^23) can be a mole of anything, even money or people.
- Sat Oct 19, 2019 9:28 pm
- Forum: Photoelectric Effect
- Topic: E = pc vs E= mv^2/2
- Replies: 2
- Views: 94
E = pc vs E= mv^2/2
Hey just asking when do we use one or the other?
- Sat Oct 19, 2019 9:26 pm
- Forum: *Shrodinger Equation
- Topic: Wave functions
- Replies: 9
- Views: 362
Wave functions
Hey just asking what the wave functions represent exactly, and will we have to know actual numeric values for the functions?
- Sat Oct 19, 2019 9:21 pm
- Forum: *Black Body Radiation
- Topic: General Question about this
- Replies: 2
- Views: 244
General Question about this
Hey did we go over this at all in class? If so, what is it??
- Sun Oct 13, 2019 9:05 pm
- Forum: DeBroglie Equation
- Topic: Concept of a wave
- Replies: 7
- Views: 543
Re: Concept of a wave
Also I believe wavelike properties are only demonstrated by objects that are extremely small. While light does exhibit wavelike properties, the equation cannot be applied towards it. So... does this mean objects with wavelike properties move in a wave? or what? That's the part I'm having trouble wi...
- Sat Oct 12, 2019 11:44 pm
- Forum: DeBroglie Equation
- Topic: Concept of a wave
- Replies: 7
- Views: 543
Re: Concept of a wave
Also I believe wavelike properties are only demonstrated by objects that are extremely small. While light does exhibit wavelike properties, the equation cannot be applied towards it. So... does this mean objects with wavelike properties move in a wave? or what? That's the part I'm having trouble wi...
- Sat Oct 12, 2019 11:39 pm
- Forum: Photoelectric Effect
- Topic: Differences between Particle and Wave
- Replies: 5
- Views: 217
Re: Differences between Particle and Wave
There are two models: In the wave model the intensity of radiation is proportional to the square of the amplitude of the wave and in the particle model intensity is proportional to the number of photons. Electrons and all matters have both particle and wavelike properties. This would be known as th...
- Sat Oct 12, 2019 11:35 pm
- Forum: Photoelectric Effect
- Topic: Question from module
- Replies: 5
- Views: 206
Re: Question from module
You could just use the mass of the electron, since it's going to be one of those numbers that are given on exams.
- Sat Oct 12, 2019 7:52 pm
- Forum: Photoelectric Effect
- Topic: Differences between Particle and Wave
- Replies: 5
- Views: 217
Differences between Particle and Wave
Hey can someone please help explain the differences exactly? I'm a bit confused.