Search found 131 matches
- Sun Mar 15, 2020 6:51 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Pre-Equilibrium Approach
- Replies: 2
- Views: 303
Re: Pre-Equilibrium Approach
It gives the rate law and is the simpler way of finding the rate law over the steady-state approach which is a method we don't need to know
- Sun Mar 15, 2020 6:44 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: are there standard rates of formation?
- Replies: 4
- Views: 370
Re: are there standard rates of formation?
They will be given because the person he had take the test to test it out took it closed book.
- Sun Mar 15, 2020 6:43 am
- Forum: General Rate Laws
- Topic: Kr Units for Different Order Reactions
- Replies: 3
- Views: 566
Re: Kr Units for Different Order Reactions
will we have to know third order reactions?
- Sun Mar 15, 2020 6:39 am
- Forum: General Rate Laws
- Topic: Initial Rate
- Replies: 5
- Views: 435
Re: Initial Rate
Where did you come across this problem? perhaps there was something else given that you looked over
- Sun Mar 15, 2020 6:37 am
- Forum: General Rate Laws
- Topic: Rate-determining step
- Replies: 7
- Views: 564
Re: Rate-determining step
Isn't there a way to tell which is the rate determining step by looking at phases or am I just mistaken?
- Sun Mar 15, 2020 6:36 am
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: What was your favorite chem topic?
- Replies: 137
- Views: 10077
Re: What was your favorite chem topic?
I would have to chemical equilibrium or electrochemistry. I feel like I didn't learn these well in high school and 14 B really helped me understand them better
- Sun Mar 08, 2020 11:26 pm
- Forum: Zero Order Reactions
- Topic: Calculus
- Replies: 10
- Views: 709
Re: Calculus
Very basic if any. Just know basic derivatives and integration rules and it will help with understanding the formulas and ways to solve.
- Sun Mar 08, 2020 11:22 pm
- Forum: Zero Order Reactions
- Topic: Order of Reaction
- Replies: 3
- Views: 323
Re: Order of Reaction
The way to tell if a reaction is a zero order reaction is when the rate is unaffected by the concentration of the reactants. First order reactions rate changes linearly based on 1 reactant concentration.
- Sun Mar 08, 2020 11:19 pm
- Forum: Second Order Reactions
- Topic: Second Order Reactions
- Replies: 5
- Views: 412
Re: Second Order Reactions
Where in the book can we find examples of first and second order reactions?
- Sun Mar 08, 2020 11:18 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Termolecular Molecularity
- Replies: 5
- Views: 464
Re: Termolecular Molecularity
Since gas molecules move randomly, the chances of 3 colliding simultaneously is very very low.
- Sun Mar 08, 2020 11:16 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Change in Internal Energy
- Replies: 3
- Views: 367
Re: Change in Internal Energy
The first equation of U=q + W should be used whenever pressure is changing, but if it is not changing then use the other equation.
- Sun Mar 08, 2020 10:27 pm
- Forum: Zero Order Reactions
- Topic: Zero Order Reaction Example
- Replies: 6
- Views: 1327
Re: Zero Order Reaction Example
What page can you find the example of a zero order reaction in the book?
- Sun Mar 08, 2020 10:21 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Study Advice
- Replies: 73
- Views: 6843
Re: Study Advice
I really like Bozeman science videos or khan academy as well as doing every practice problem and reading through the examples in the book.
- Sun Mar 08, 2020 10:20 pm
- Forum: General Rate Laws
- Topic: Rate limiting step
- Replies: 12
- Views: 810
Re: Rate limiting step
It is the slowest step in the mechanism
- Sun Mar 08, 2020 10:12 pm
- Forum: General Rate Laws
- Topic: units
- Replies: 12
- Views: 603
Re: units
for 0 order reactions the units are M/s (or any unit for time)
- Wed Feb 26, 2020 12:37 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Galvanic vs. Concentration Cells
- Replies: 6
- Views: 451
Re: Galvanic vs. Concentration Cells
The difference is that galvanic cells are separated using a salt bridge which also means they will be shown as 2 lines (ll) when written out and Concentration cells are written out using 1 line (l). Both are very important esp in electro chemistry. Galvanic bridges also contain salt bridges in order...
- Wed Feb 26, 2020 12:24 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: G(not) and G
- Replies: 15
- Views: 717
Re: G(not) and G
Naught always means 1M of solution or 1 atm at 298K (same as 25 Celsius)
- Wed Feb 26, 2020 12:23 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: nernst 2
- Replies: 3
- Views: 280
Re: nernst 2
Volts which are 1 joules of work per coulomb of charge transferred. 1 Coulomb is the amount of electrical charge in 6.24 x 10^18 electrons.
- Wed Feb 26, 2020 12:16 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: K and Cell potential
- Replies: 3
- Views: 289
Re: K and Cell potential
If K is less than 1 then cell potential will make the natural log of k negative and if K is greater than 1 than the natural log of K will be positive. Since delta(change of) G is equal to -RT ln(K), that means that delta(change of) G will be negative when K is greater than 1 and positive when K is l...
- Wed Feb 26, 2020 12:07 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Porous Disk and Salt Bridge
- Replies: 13
- Views: 1182
Re: Porous Disk and Salt Bridge
Don't the do the same thing, but in different situations so how could you compare their efficiency. Porous disks are for 2 of the same solutions that are different molarity or am I misunderstanding what they are?
- Fri Feb 21, 2020 12:54 am
- Forum: Balancing Redox Reactions
- Topic: Oxidizing/reducing agent
- Replies: 7
- Views: 503
Re: Oxidizing/reducing agent
The oxidizing agent is in reactants for the reduction reaction. It's the one whose charge is decreasing.
The reducing agent is in the reactants for the oxidation reaction. It's the one whose charge is increasing.
The reducing agent is in the reactants for the oxidation reaction. It's the one whose charge is increasing.
- Fri Feb 21, 2020 12:49 am
- Forum: Balancing Redox Reactions
- Topic: Balancing Redox Reactions in Basic Solution
- Replies: 4
- Views: 320
Re: Balancing Redox Reactions in Basic Solution
In basic reactions my TA just used OH- in both the Reduction and Oxidation just on different sides. Where does it say to use H+ in a basic solution?
- Fri Feb 21, 2020 12:46 am
- Forum: Balancing Redox Reactions
- Topic: Test 2 [ENDORSED]
- Replies: 12
- Views: 712
Re: Test 2 [ENDORSED]
It should cover chapters 5G, 5J, 6K,6L, 6M, 6N, and 6O, meaning free energy (it's relation with work, pressure and equilibrium constant) and Van't Hoff's equation and their involvement and importance in organic reactions, and all of electrochemistry.
- Fri Feb 21, 2020 12:39 am
- Forum: Balancing Redox Reactions
- Topic: Balancing Redox Reaction in Acidic vs. Alkaline Condition
- Replies: 3
- Views: 277
Re: Balancing Redox Reaction in Acidic vs. Alkaline Condition
When oxygen is the one being oxidized in an acidic solution it will react with water to form H+ and the oxidized oxygen molecule. In its reduction reaction the element being reduced will react with H+ to form H2O. In a basic solution, when oxygen is the one being oxidized it will react with OH- to f...
- Fri Feb 21, 2020 12:13 am
- Forum: Balancing Redox Reactions
- Topic: oxidation numbers
- Replies: 5
- Views: 314
Re: oxidation numbers
You just have to find the oxidation numbers for the elements that are changing(being oxidized or reduced). If you do not know which elements are being oxidized or reduced then you should calculate all of the oxidation numbers to find out.
- Sun Feb 16, 2020 10:07 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Wmax
- Replies: 4
- Views: 270
Re: Wmax
Why is Wmax under electrochemistry and how do we solve for it? sorry I missed Fridays lecture
- Sun Feb 16, 2020 10:06 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Delta E
- Replies: 11
- Views: 779
Re: Delta E
Does delta E always represent the change in internal energy? doesn't e just represent energy?
- Sun Feb 16, 2020 10:01 pm
- Forum: Phase Changes & Related Calculations
- Topic: rate of reactions
- Replies: 3
- Views: 322
Re: rate of reactions
What is the standard unit of time?
- Sun Feb 16, 2020 9:59 pm
- Forum: Balancing Redox Reactions
- Topic: Electrochemisty
- Replies: 10
- Views: 634
Re: Electrochemisty
The answer to this might be obvious but how does this connect to batteries?
- Sun Feb 16, 2020 9:53 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Constant Pressure and Volume
- Replies: 6
- Views: 431
Re: Constant Pressure and Volume
Why is the calculation for monatomic atoms lower than that of diatomic atoms.
- Sun Feb 16, 2020 9:47 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: S = 0
- Replies: 21
- Views: 1150
Re: S = 0
An example would be a perfect crystal like diamond at absolute zero. However absolute zero is impossible to reach at the moment and can only be reached theoretically.
- Sun Feb 16, 2020 9:35 pm
- Forum: Balancing Redox Reactions
- Topic: Determining charge
- Replies: 5
- Views: 303
Re: Determining charge
The overall charge of each side should be equal since no electrons are lost or gained in the reaction, just transferred from one molecule to another. I find it best to memorize the common charges for common elements so you know how the charge will change. I do believe for metals there is a correlati...
- Mon Feb 10, 2020 12:00 am
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: Standard reaction entropy
- Replies: 3
- Views: 108
Re: Standard reaction entropy
The products and reactants entropy shouldn't be changing when we are calculating standard reaction entropy. The change is how entropy changed when going from reactants to products.
- Sun Feb 09, 2020 11:56 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: spontaneity
- Replies: 18
- Views: 695
Re: spontaneity
If entropy is positive, then the reaction is spontaneous. Since "(-deltaG / T) =delta S (of the universe)", if deltaS(of the universe) is positive, then deltaG is negative.
- Sun Feb 09, 2020 11:50 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs Free Energy
- Replies: 1
- Views: 112
Re: Gibbs Free Energy
I believe the main one is deltaG=deltaH-T delatS, Gibbs should be under constant T and P. Also deltaG=sum of deltaG(formation) (of the products) - sum of deltaG(formation)(of the reactants)
- Sun Feb 09, 2020 11:42 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: Degeneracy
- Replies: 5
- Views: 236
Re: Degeneracy
You don't have to calculate the number of microstates , it will be given.
- Sun Feb 09, 2020 11:37 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: ICE BOX
- Replies: 27
- Views: 786
Re: ICE BOX
You also should check again at the end with the 5% dissociation rule. Divide your x by the initial and if it is greater than 5%, then you can't assume it's negligible.
- Sun Feb 09, 2020 11:32 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: graphs
- Replies: 3
- Views: 147
Re: graphs
In the pressure and volume graph, irreversible have no slope because it is isobaric, meaning there is not change in pressure. For a reversible reaction an increase in volume should decrease pressure, making the slope decreasing.
- Sun Feb 09, 2020 11:16 pm
- Forum: Phase Changes & Related Calculations
- Topic: heat added/released
- Replies: 6
- Views: 310
Re: heat added/released
It can also be seen if there is a phase change. If the reaction is say changing from solid to liquid or gas, then heat will be required to break the bonds so it is endothermic. If it was gas to liquid or solid, then it would be exothermic.
- Sun Feb 09, 2020 11:11 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Heat capacity
- Replies: 3
- Views: 167
Re: Heat capacity
Sorry but intensive properties are independent of the size of the sample. So heat capacity is extensive, which depends on the size, because the amount of substance you have will heat up slower if there is more. However specific heat capacity won't change based off the amount of substance you have be...
- Sun Feb 09, 2020 10:59 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Enthalpies of Formation
- Replies: 2
- Views: 86
Re: Enthalpies of Formation
Standard enthalpies of physical change are on the to of page 268 and standard enthalpies of formation at 25 degrees C is on the bottom of page 282.
- Sun Feb 09, 2020 10:54 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: q=H
- Replies: 4
- Views: 304
Re: q=H
I believe you have it switched. deltaH is always q, while q is = to deltaH at constant pressure
- Sun Feb 02, 2020 10:01 pm
- Forum: Entropy Changes Due to Changes in Volume and Temperature
- Topic: delta s
- Replies: 3
- Views: 624
Re: delta s
What are, if there are any, some examples where delta s is positive and bonds are being formed?
- Sun Feb 02, 2020 9:58 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess’ Law
- Replies: 10
- Views: 605
Re: Hess’ Law
It's a way to find the total change in enthalpy when multiple subreactions are occurring.
- Sun Feb 02, 2020 9:47 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Useful Summary of Thermodynamic Definitions
- Replies: 55
- Views: 18438
Re: Useful Summary of Thermodynamic Definitions
Will we have to know these terms for the test?
- Sun Feb 02, 2020 9:46 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Internal Energy of isolated system
- Replies: 2
- Views: 64
Re: Internal Energy of isolated system
Because the system can't interact and be affected by or affect its surroundings.
- Sun Feb 02, 2020 9:39 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: Microstates
- Replies: 16
- Views: 1044
Re: Microstates
They are not the same thing, just related
W=X^n
Where W= Degeneracy, X=the number if possible microstates, n=number of available particles
W=X^n
Where W= Degeneracy, X=the number if possible microstates, n=number of available particles
- Sun Feb 02, 2020 9:33 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Value of q
- Replies: 11
- Views: 548
Re: Value of q
q of the system is equal to the negative q of the surroundings.
- Sun Feb 02, 2020 9:31 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Temperature
- Replies: 14
- Views: 548
Re: Temperature
Delta H being negative means that the reaction is giving off energy and is therefor exothermic.
- Sun Feb 02, 2020 9:29 pm
- Forum: Ideal Gases
- Topic: Temperature
- Replies: 17
- Views: 763
Re: Temperature
For PV=nRT you must convert temperature to kelvin, so to be safe, unless the equation you're using involves celsius, convert to kelvin.
- Sun Feb 02, 2020 9:24 pm
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: higher entropies
- Replies: 6
- Views: 799
Re: higher entropies
High Entropy means high disorder and low energy.
- Sun Feb 02, 2020 8:27 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Pressure in an open beaker
- Replies: 12
- Views: 767
Re: Pressure in an open beaker
Actual pressure should be given. If it is not given it will cancel out and not be necessary for calculations
- Fri Jan 17, 2020 4:03 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: ICE tables
- Replies: 5
- Views: 195
Re: ICE tables
You use ice tables when the reactants don't dissociate completely. When there is not a strong acid or base involved, use ice tables.
- Fri Jan 17, 2020 3:57 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Endothermic and exothermic reactions
- Replies: 11
- Views: 1075
Re: Endothermic and exothermic reactions
Yes, some chemical equations will include delta H, or heat in the reaction to show if heat is absorbed or released in the reaction.
- Fri Jan 17, 2020 3:54 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Kw
- Replies: 16
- Views: 421
Re: Kw
Kw is the equilibrium constant for water and at 25 C is 10^(-14), but if the equation doesn't specify the temperature, can we assume that the reaction is taking place at 25 C?
- Fri Jan 17, 2020 3:52 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: ICE table
- Replies: 11
- Views: 352
Re: ICE table
I believe there are 6 strong acids and 6 strong bases. Memorize those and any other acid or base won't dissociate completely
- Fri Jan 17, 2020 3:44 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Inert Gas does not change pressure?
- Replies: 7
- Views: 256
Re: Inert Gas does not change pressure?
In order to change the equilibrium constant you must change the partial pressure of either the products or reactants, such as adding more of the reactants. Adding an inert gas would not change the partial pressure of the reactants or products.
- Sun Jan 12, 2020 10:42 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Pure Substances
- Replies: 3
- Views: 154
Re: Pure Substances
Are solids and liquids the only things we have to remember to exclude from equilibrium reaction calculations?
- Sun Jan 12, 2020 10:35 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Ice tables for partial pressures
- Replies: 4
- Views: 178
Re: Ice tables for partial pressures
Yes ice pressures are for all equilibrium reactions
- Sun Jan 12, 2020 10:29 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Homogenous Equilibrium
- Replies: 13
- Views: 365
Re: Homogenous Equilibrium
He never went over how homogeneous and heterogeneous reactions affect the speed of a reaction
- Sun Jan 12, 2020 10:26 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Q
- Replies: 10
- Views: 358
Re: Q
If we are at the reaction equilibrium but we aren't sure would we use Q?
- Sun Jan 12, 2020 10:19 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: What is this?
- Replies: 23
- Views: 1434
Re: What is this?
Those are all of the factors that can be applied
- Sun Jan 12, 2020 10:17 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Partial Pressure
- Replies: 19
- Views: 715
Re: Partial Pressure
Will the partial pressure of the gases always add to the same thing on both sides of the reaction?
- Sun Jan 12, 2020 10:16 pm
- Forum: Ideal Gases
- Topic: Kc and Kp
- Replies: 8
- Views: 268
Re: Kc and Kp
When solving for Kp do we have to represent the products and reactants as partial pressures?
- Sun Dec 08, 2019 9:38 am
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 341655
Re: Final Jitters
Just believe in yourself. Remember you earned your way into this school, have been in this course all year, and can do this!!! Good luck everyone
- Sat Dec 07, 2019 2:00 pm
- Forum: Biological Examples
- Topic: Vitamin b12
- Replies: 1
- Views: 116
Re: Vitamin b12
It's an important biological catalyst. It's because of how easy the bond is broken (metal-carbon bond) and the ability for the ion to change from one oxidation state to another.
- Sat Dec 07, 2019 1:55 pm
- Forum: Naming
- Topic: Naming quizlet
- Replies: 41
- Views: 1722
Naming quizlet
here's a quizlet of the names of ligands and some names for metals are included as well
https://quizlet.com/_7niofk?x=1jqt&i=dsn2r
https://quizlet.com/_7niofk?x=1jqt&i=dsn2r
Re: Metals
Correction sorry, only some metals come from latin, so only the ones that do can be changed to their latin meaning when the complex has an overall negative charge.
Re: Metals
Read page 723 it'll explain when you use these names. You don't have to use them always, in fact you shouldn't. It explains it well.(it's basically when the complex has a negative charge you use the Latin name with a suffix depending on the metal's charge)
Metals
I know we need to know the Latin name for metals when naming coordination compounds, but which metals do we have to know the Latin names for?
- Sat Dec 07, 2019 12:38 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: HClO3
- Replies: 2
- Views: 276
HClO3
In class Dr. Lavelle drew HClO3 with the Hydrogen attached to the oxygen and I was wondering why it is attached to the oxygen and not the chlorine?
- Sun Dec 01, 2019 11:34 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Amphoteric compounds
- Replies: 4
- Views: 157
Re: Amphoteric compounds
What is another example of an amphoteric compound
- Sun Dec 01, 2019 11:05 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Textbook
- Replies: 5
- Views: 2102
Re: Textbook
What chapters will the final consist of? so what reading should I do
- Sun Dec 01, 2019 10:46 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Neutralization
- Replies: 7
- Views: 442
Re: Neutralization
It ends with a neutral pH after creating salt and water
- Sun Dec 01, 2019 10:39 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Final Study Methods
- Replies: 11
- Views: 662
Re: Final Study Methods
I'd agree, the best way to review would be to read the book and I would also recommend getting his tests from last year and going through all the questions, as well as redoing this years.
- Sun Dec 01, 2019 10:36 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Notes of November 25
- Replies: 4
- Views: 319
Re: Notes of November 25
I was as well could you possibly email them to me? I'd be forever grateful. My email is zevrothschild2001@gmail.com
- Sun Dec 01, 2019 10:32 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Why sulfuric acid is stronger than phosphoric acid
- Replies: 4
- Views: 3725
Re: Why sulfuric acid is stronger than phosphoric acid
How did you post the images there? I've tried to do the same to post replies but don't know how.
- Sun Nov 24, 2019 3:18 pm
- Forum: Biological Examples
- Topic: Cisplatin
- Replies: 15
- Views: 645
Re: Cisplatin
Where can I find this in the book so I can read more on it?
- Sun Nov 24, 2019 3:17 pm
- Forum: Biological Examples
- Topic: Heme complex
- Replies: 8
- Views: 658
Re: Heme complex
How would something like this appear on a test? would we define it or say why it's needed or what?
- Sun Nov 24, 2019 3:11 pm
- Forum: Naming
- Topic: Homework problems Week 9
- Replies: 4
- Views: 259
Re: Homework problems Week 9
Do we have discussions the day before thanksgiving(Wednesday)?
- Sun Nov 24, 2019 3:06 pm
- Forum: Naming
- Topic: [Co(NH3)5Cl]Cl H2O
- Replies: 4
- Views: 323
Re: [Co(NH3)5Cl]Cl H2O
We are supposed to recognize and memorize the table, there are also many quizlets that I found that are very helpful for memorizing them.
- Sun Nov 24, 2019 3:02 pm
- Forum: Naming
- Topic: Final Format
- Replies: 6
- Views: 359
Re: Final Format
Will it be composed of questions equally spread out from the year or will a majority come from the end of the year because we didn't have any midterms test us on end concepts?
Re: Naming
I believe I heard that we should know the "name" column
- Sun Nov 24, 2019 2:56 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: dipole-dipole in a solid phase vs gas phase
- Replies: 15
- Views: 1157
Re: dipole-dipole in a solid phase vs gas phase
So is solid stronger or are they both the same? or does it depend on the molecule, not the state
- Sun Nov 17, 2019 11:23 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Polarizable vs polarizing power
- Replies: 6
- Views: 449
Re: Polarizable vs polarizing power
So what would be the most polarizable element?
- Sun Nov 17, 2019 11:22 pm
- Forum: Dipole Moments
- Topic: Cancelling dipole moments
- Replies: 11
- Views: 4662
Re: Cancelling dipole moments
Can someone give another example of a canceling dipole moment?
- Sun Nov 17, 2019 11:22 pm
- Forum: Bond Lengths & Energies
- Topic: Lone pairs
- Replies: 7
- Views: 627
Re: Lone pairs
If a lone pair is a radical would it have a weaker repulsion than a complete lone pair?
- Sun Nov 17, 2019 11:20 pm
- Forum: Bond Lengths & Energies
- Topic: Test 2 Topics
- Replies: 40
- Views: 2097
Re: Test 2 Topics
I believe it's bonds, which bond has a greater angle between them, vsper, bond strengths, and shapes and structures
- Sun Nov 17, 2019 11:15 pm
- Forum: Dipole Moments
- Topic: Hydrogen bonds
- Replies: 17
- Views: 748
Re: Hydrogen bonds
What is the strongest and least strongest of the hydrogen bonds?
- Sun Nov 17, 2019 11:03 pm
- Forum: Bond Lengths & Energies
- Topic: Strongest Bonds
- Replies: 11
- Views: 891
Re: Strongest Bonds
Should we know about how much energy it takes to break each bond?
- Sun Nov 17, 2019 11:00 pm
- Forum: Administrative Questions and Class Announcements
- Topic: test 2
- Replies: 7
- Views: 370
Re: test 2
Does anyone know what page in the book has all of the shapes?
- Sun Nov 10, 2019 11:47 pm
- Forum: Sigma & Pi Bonds
- Topic: Quantum Numbers
- Replies: 9
- Views: 579
Re: Quantum Numbers
How do you tell ML again and can someone explain what it is?
- Sun Nov 10, 2019 11:45 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal charge
- Replies: 16
- Views: 892
Re: Formal charge
Get as many as you can to 0, and ensure that the center has a formal charge of 0.
- Sun Nov 10, 2019 11:35 pm
- Forum: Lewis Structures
- Topic: Electronegative
- Replies: 14
- Views: 810
Re: Electronegative
Why is Nitrogen more electronegative than Oxygen but has a lower first ionization energy.
- Sun Nov 10, 2019 11:25 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Polar vs covalent
- Replies: 7
- Views: 398
Re: Polar vs covalent
Ionic bonds involve the transfer of electrons from one element to another while covalent results from the sharing.
- Sun Nov 10, 2019 11:22 pm
- Forum: Resonance Structures
- Topic: Resonance Structures
- Replies: 18
- Views: 1073
Re: Resonance Structures
Say one way to draw the lewis structure CO2 was written as, 0-C=O(with sets electrons above the carbon and Oxygen), then the example of its resonance structure would be O=C-O. It is the rearranging or redrawing of bonds that does not change the structure itself. Please note this is not the correct l...
- Sun Nov 10, 2019 11:13 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge and Resonance
- Replies: 5
- Views: 390
Re: Formal Charge and Resonance
Formal charges will give you the most stable structure, meaning you then should be able to tell based off the most stable structure if the molecule has resonance structures.
- Sun Nov 10, 2019 11:09 pm
- Forum: Octet Exceptions
- Topic: Octet Rule exceptions
- Replies: 14
- Views: 841
Re: Octet Rule exceptions
Can someone explain why these elements are exceptions?
- Sun Nov 03, 2019 10:24 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Ms and ML
- Replies: 6
- Views: 2004
Re: Ms and ML
I understand that ms is 1/2 or -1/2 but why is this? I understand what each value means but is there a specific reason it is always these values?
- Sun Nov 03, 2019 10:20 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Degenerate orbitals
- Replies: 4
- Views: 263
Re: Degenerate orbitals
Could you give another example of a degenerate orbital or is hydrogen the only one?