Search found 125 matches

by Elizabeth Harty 1A
Sun Mar 15, 2020 12:52 pm
Forum: First Order Reactions
Topic: order of a reaction
Replies: 2
Views: 70

Re: order of a reaction

you add the exponents for the overall order
by Elizabeth Harty 1A
Sun Mar 15, 2020 12:51 pm
Forum: Biological Examples (*DNA Structural Transitions, etc.)
Topic: Examples Expected to Know
Replies: 10
Views: 378

Re: Examples Expected to Know

Usually what is covered in lecture
by Elizabeth Harty 1A
Sun Mar 15, 2020 12:50 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Kelvin or Celsius?
Replies: 47
Views: 962

Re: Kelvin or Celsius?

Kelvin
by Elizabeth Harty 1A
Sun Mar 15, 2020 12:50 pm
Forum: Administrative Questions and Class Announcements
Topic: Athena
Replies: 34
Views: 1971

Re: Athena

Thank you for all your help Lavelle!
by Elizabeth Harty 1A
Sun Mar 15, 2020 12:49 pm
Forum: First Order Reactions
Topic: Kinetics Review Session
Replies: 2
Views: 292

Re: Kinetics Review Session

How do you do #5?
by Elizabeth Harty 1A
Mon Mar 09, 2020 11:28 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Reactant order
Replies: 4
Views: 54

Re: Reactant order

How do you know which reactions to compare?
by Elizabeth Harty 1A
Mon Mar 09, 2020 11:26 am
Forum: General Rate Laws
Topic: Overall rate law
Replies: 8
Views: 96

Re: Overall rate law

I think its because the entire reaction depends on the slowest step.
by Elizabeth Harty 1A
Mon Mar 09, 2020 11:25 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: reaction rate vs average reaction rate
Replies: 5
Views: 69

Re: reaction rate vs average reaction rate

How do we apply these different rates?
by Elizabeth Harty 1A
Mon Mar 09, 2020 11:24 am
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Rate laws for reaction mechanisms
Replies: 3
Views: 46

Re: Rate laws for reaction mechanisms

He said we're only doing pre-equlbrium analysis
by Elizabeth Harty 1A
Mon Mar 09, 2020 11:23 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalysts
Replies: 8
Views: 69

Re: Catalysts

providing a alternate pathway and weakening bonds
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:07 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: identifying cathode/anode
Replies: 4
Views: 92

identifying cathode/anode

How do you know which is anode/cathode if both species is decreasing in oxidation state for instance?
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:06 pm
Forum: Balancing Redox Reactions
Topic: anode/cathod reversible
Replies: 4
Views: 47

anode/cathod reversible

Can someone explain how it was known to write the equations in this way when it was written as reversible?
Thanks
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:05 pm
Forum: Balancing Redox Reactions
Topic: reversible reactions
Replies: 2
Views: 37

reversible reactions

When the reaction is reversible how do you know how to write which is the anode and which the cathode?
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:02 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: delta G = -nFE
Replies: 6
Views: 72

Re: delta G = -nFE

For these type of reactions what does it mean if the reaction is spontaneous?
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:01 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Units for delta G
Replies: 14
Views: 231

Re: Units for delta G

What is the difference between delta g naught and delta g?
by Elizabeth Harty 1A
Sun Mar 01, 2020 5:00 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Where to find Ecell values
Replies: 15
Views: 140

Re: Where to find Ecell values

Appendix 2B in textbook
by Elizabeth Harty 1A
Sun Mar 01, 2020 4:59 pm
Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
Topic: Electrochemical Series
Replies: 6
Views: 134

Re: Electrochemical Series

I don't think we really talked about it but it ranks chemical species according to their standard electrode potentials.
by Elizabeth Harty 1A
Mon Feb 24, 2020 11:23 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Negative work
Replies: 14
Views: 238

Re: Negative work

When a system does work the value is negative
by Elizabeth Harty 1A
Mon Feb 24, 2020 11:22 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Free energy difference
Replies: 2
Views: 38

Re: Free energy difference

What does max cell potential mean?
by Elizabeth Harty 1A
Mon Feb 24, 2020 11:21 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: gibbs free energy
Replies: 15
Views: 130

Re: gibbs free energy

"a thermodynamic quantity equal to the enthalpy (of a system or process) minus the product of the entropy and the absolute temperature."
by Elizabeth Harty 1A
Wed Feb 12, 2020 2:29 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: q of ice and q of water
Replies: 8
Views: 136

Re: q of ice and q of water

The heat lost by the water (indicated by the negative sign) is equal to the heat gained by the ice (the positive sign).
by Elizabeth Harty 1A
Tue Feb 11, 2020 11:05 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: S = q/T
Replies: 5
Views: 61

Re: S = q/T

What is this equation used for?
by Elizabeth Harty 1A
Tue Feb 11, 2020 11:03 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Entropy
Replies: 4
Views: 68

Re: Entropy

Increasing the Temp causes the kinetic energy of the particles to increase which makes them able to occupy more possible states at a faster rate therefore increasing entropy.
by Elizabeth Harty 1A
Tue Feb 11, 2020 10:53 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Solids and Equilibrium Constant
Replies: 2
Views: 26

Re: Solids and Equilibrium Constant

because solids aren't included in the equilbrium equation so doesn't affect kC.
by Elizabeth Harty 1A
Tue Feb 11, 2020 10:48 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Spontaneous
Replies: 23
Views: 356

Re: Spontaneous

You can look at the sign of delta g. If it is negative its spontaneous if its positive its not.
by Elizabeth Harty 1A
Tue Feb 11, 2020 10:42 pm
Forum: Calculating Work of Expansion
Topic: A system doing no work
Replies: 4
Views: 49

Re: A system doing no work

I might be wrong but I think work is only done when there is a volume change.
by Elizabeth Harty 1A
Tue Feb 11, 2020 10:24 pm
Forum: Calculating Work of Expansion
Topic: w=-nRT(ln V2/V1) Derivation
Replies: 3
Views: 44

Re: w=-nRT(ln V2/V1) Derivation

You just know when to use it.
by Elizabeth Harty 1A
Tue Feb 11, 2020 10:24 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: different formulas of w
Replies: 3
Views: 42

Re: different formulas of w

I think it depends on the information you're given in the problem and you rearrange accordingly.
by Elizabeth Harty 1A
Tue Feb 04, 2020 9:19 am
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Extensive Property
Replies: 4
Views: 35

Re: Extensive Property

"Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. "
by Elizabeth Harty 1A
Tue Feb 04, 2020 9:18 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Differences between systems
Replies: 3
Views: 37

Re: Differences between systems

In closed system energy can be transferred and matter is constant but in isolated neither matter nor energy can be transferred. An example of a closed system is a sauce pan w/ lid. An example of an isolated is thermos.
by Elizabeth Harty 1A
Tue Feb 04, 2020 9:14 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: isolated system
Replies: 8
Views: 108

Re: isolated system

In an isolated system no matter or energy is able to be transferred. I though a bomb calorimeter was a closed system not isolated?
by Elizabeth Harty 1A
Tue Feb 04, 2020 9:09 am
Forum: Administrative Questions and Class Announcements
Topic: Video Outlines
Replies: 3
Views: 130

Re: Video Outlines

No I don't think so, at least not on the class website.
by Elizabeth Harty 1A
Tue Feb 04, 2020 8:49 am
Forum: Calculating Work of Expansion
Topic: when to use...?
Replies: 4
Views: 47

Re: when to use...?

You use the ln one when the pressure is not constant.
by Elizabeth Harty 1A
Tue Feb 04, 2020 8:48 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: reaction enthalpy
Replies: 14
Views: 91

Re: reaction enthalpy

In the thermodynamics outline what does the bullet point "calculate enthalpy changes from calorimetric data" mean?
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:34 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Types of Systems
Replies: 3
Views: 34

Re: Types of Systems

Bomb calorimeters are constructed so that there is a constant volume so no gases escape during the reaction. This makes it a closed system.
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:33 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Delta T
Replies: 4
Views: 40

Re: Delta T

005391550 wrote:an exothermic reaction will release heat which will raise the temperature of the surroundings and an endothermic reaction will therefore do the opposite

if heat is released for exothermic rxns why is delta t negative?
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:32 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: reaction enthalpy
Replies: 14
Views: 91

Re: reaction enthalpy

What is the difference between enthalpy and entropy?
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:28 pm
Forum: Phase Changes & Related Calculations
Topic: Calorimeter
Replies: 5
Views: 57

Re: Calorimeter

Calorimeters measure the heat involved in a chemical rxn or physical process. When a liquid loses or gains energy, its temperature changes. The calorimeter (or the simple one you use in the lab) measures the temperature change for the liquid and the mass to determine the amount of energy lost or gai...
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:24 pm
Forum: Phase Changes & Related Calculations
Topic: steam at 100ºC burn worse
Replies: 7
Views: 377

Re: steam at 100ºC burn worse

it has more energy bc it has the energy of boiling water and the energy needs to transition from vapor to liquid (as it touches you)
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:19 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Heat Supplied to a system
Replies: 6
Views: 81

Re: Heat Supplied to a system

Why do you include the mass of the copper, I thought you only used the mass of the water?
by Elizabeth Harty 1A
Tue Jan 28, 2020 10:18 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Closed vs isolated systems
Replies: 24
Views: 198

Re: Closed vs isolated systems

With a closed system, the mater is constant but every is allowed to be transferred to the surroundings. In an isolated system neither matter nor energy transfer is allowed.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:48 pm
Forum: Phase Changes & Related Calculations
Topic: Steam vs liquid
Replies: 7
Views: 73

Re: Steam vs liquid

Water has a very high vapor energy.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:47 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Changes in Pressure
Replies: 9
Views: 89

Re: Changes in Pressure

It has to have an effect on volume to effect the direction but it doesn't effect equilibrium constant.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:45 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: suggestions
Replies: 16
Views: 152

Re: suggestions

Chemistry Libretexts is really helpful.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:43 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: equilibrium
Replies: 3
Views: 39

Re: equilibrium

Yes, every chemical reaction can theoretically be in equilibrium.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:43 pm
Forum: Phase Changes & Related Calculations
Topic: Phase Transition Temp.
Replies: 6
Views: 81

Re: Phase Transition Temp.

it has to do with the energy stored in the bonds and the lack of temperature signifies and phase transition
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:42 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Delta H
Replies: 10
Views: 360

Re: Delta H

positive delta H means endothermic, negative delta H means exothermic.
by Elizabeth Harty 1A
Fri Jan 24, 2020 1:41 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Prep for Test 1
Replies: 16
Views: 163

Re: Prep for Test 1

You don't need to memorize but should know the differences and converting.
by Elizabeth Harty 1A
Fri Jan 17, 2020 4:08 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Temperature Change
Replies: 9
Views: 181

Re: Temperature Change

Its temperature dependent
by Elizabeth Harty 1A
Fri Jan 17, 2020 4:07 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Kc & Kp
Replies: 12
Views: 108

Re: Kc & Kp

Are the calculations the same regardless of whether its concentration of partial pressure?
by Elizabeth Harty 1A
Fri Jan 17, 2020 4:05 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5 percent rule
Replies: 10
Views: 93

Re: 5 percent rule

What approximation is it talking about?
by Elizabeth Harty 1A
Fri Jan 17, 2020 3:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE tables
Replies: 5
Views: 66

ICE tables

How do we know when we need to use an ICE table vs when we can just use the equation of products over reactants?
by Elizabeth Harty 1A
Wed Jan 08, 2020 3:10 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure vs. Concentration
Replies: 4
Views: 33

Re: Partial Pressure vs. Concentration

What are the units for kC and kP?
by Elizabeth Harty 1A
Wed Jan 08, 2020 3:08 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: partial pressure
Replies: 2
Views: 38

partial pressure

When doing the equations for k why does Lavelle put a Pp in from of the reactants/products? I know it stands for partial pressure but what exactly is partial pressure?
by Elizabeth Harty 1A
Wed Jan 08, 2020 3:06 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Small K value and Large K value
Replies: 10
Views: 107

Re: Small K value and Large K value

In lecture, Lavelle said that if the value is between the two limits neither the reactant nor the product is favored and it is in a sort of intermediate state.
by Elizabeth Harty 1A
Wed Jan 08, 2020 3:05 pm
Forum: Ideal Gases
Topic: Q and K
Replies: 7
Views: 73

Re: Q and K

Although they are both calculated the same way, they are compared to determine which way the reaction will proceed.
by Elizabeth Harty 1A
Sat Dec 07, 2019 4:16 pm
Forum: Amphoteric Compounds
Topic: Amphoteric vs amphiprotic
Replies: 6
Views: 19465

Re: Amphoteric vs amphiprotic

How do you know if something is amphiprotic?
by Elizabeth Harty 1A
Sat Dec 07, 2019 11:52 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: chelating ligands [ENDORSED]
Replies: 21
Views: 6230

Re: chelating ligands [ENDORSED]

How do you know if there are sigma bonds available for rotation?
by Elizabeth Harty 1A
Sat Dec 07, 2019 11:49 am
Forum: Biological Examples
Topic: Cisplatin
Replies: 9
Views: 266

Re: Cisplatin

005162520 wrote:Does chlorine get replaced by water or nitrogen from guanine base pair?


I think the water
by Elizabeth Harty 1A
Sat Dec 07, 2019 11:49 am
Forum: Biological Examples
Topic: Cisplatin
Replies: 9
Views: 266

Re: Cisplatin

Camille 4I wrote:Why is cisplatin square planar and not tetrahedral?


its both
by Elizabeth Harty 1A
Sat Dec 07, 2019 11:45 am
Forum: Polyprotic Acids & Bases
Topic: polyprotic acids
Replies: 3
Views: 114

polyprotic acids

Why is it that the Ka is bigger for the first dissociation in comparison to the second?
by Elizabeth Harty 1A
Tue Dec 03, 2019 10:07 am
Forum: Amphoteric Compounds
Topic: Amphoteric/acidic/basic
Replies: 5
Views: 71

Amphoteric/acidic/basic

Based on problem 6A.17 from the homework, how do you determine if an oxide is acidic basic or amphoteric?
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:36 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 9
Views: 98

Re: Coordination Number



Coordination # and oxidation # aren't necessarily the same.
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:32 am
Forum: Naming
Topic: Naming Compounds with Two Ligands
Replies: 3
Views: 44

Re: Naming Compounds with Two Ligands

You order them alphabetically ignoring greek prefixes.
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:28 am
Forum: Bronsted Acids & Bases
Topic: Defining brosted and lewis
Replies: 5
Views: 72

Re: Defining brosted and lewis

I understand the definition of Bronsted and Lewis acids and bases but how do you identify if an acid or base is Lewis or Bronsted when it is in a reaction? Does this determine how you then deal with the reaction. In the reaction, the one giving off a proton is the acid and the one reacting with tha...
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:27 am
Forum: General Science Questions
Topic: 50 post grade
Replies: 25
Views: 803

Re: 50 post grade

Do they check every Sunday or at the end?
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:26 am
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Strong Acids
Replies: 4
Views: 46

Re: Strong Acids

Ashley Osorio wrote:So because they (typically) completely dissolve in water, they have no Ka value. Can only strong acids do this then? Have no Ka value?


Do you mean as opposed to bases?
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:24 am
Forum: Naming
Topic: Memorizing
Replies: 9
Views: 108

Re: Memorizing

Yes we have to memorize the table he emailed to us.
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:23 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Polydentate
Replies: 3
Views: 67

Re: Polydentate

You can look at lone pairs.
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:22 am
Forum: Lewis Acids & Bases
Topic: Memorizing Charges of Transition Metals
Replies: 9
Views: 143

Re: Memorizing Charges of Transition Metals

I think you have to memorize them.
by Elizabeth Harty 1A
Tue Dec 03, 2019 8:20 am
Forum: Conjugate Acids & Bases
Topic: 6A.1
Replies: 6
Views: 146

Re: 6A.1

When doing acids you just add a proton and increase the charge respectively.
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:06 pm
Forum: Coordinate Covalent Bonds
Topic: coordinate covalent bond
Replies: 9
Views: 242

Re: coordinate covalent bond

Coordinate covalent bonds also often happen when there are exceptions to the octet rule like for boron.
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:05 pm
Forum: Dipole Moments
Topic: define
Replies: 1
Views: 39

define

What exactly is a dipole moment?
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:04 pm
Forum: Ionic & Covalent Bonds
Topic: Lone pairs
Replies: 4
Views: 68

Lone pairs

Why are lone pairs more likely to be found in certain places?
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:02 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 2 Length
Replies: 9
Views: 103

Re: Test 2 Length

Why are lone pairs more likely to be found in certain places?
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:01 pm
Forum: Lewis Structures
Topic: double and triple bonds
Replies: 6
Views: 143

Re: double and triple bonds

The formal charges should be minimized but they also have to add up to the overall charge of the molecule.
by Elizabeth Harty 1A
Mon Nov 18, 2019 8:00 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: dipole dipole
Replies: 5
Views: 57

Re: dipole dipole

You might look at the sizes and the electronegativity differences
by Elizabeth Harty 1A
Mon Nov 18, 2019 7:59 pm
Forum: Lewis Structures
Topic: radicals
Replies: 3
Views: 64

Re: radicals

They have an odd number of electrons and are highly reactive
by Elizabeth Harty 1A
Mon Nov 11, 2019 10:59 am
Forum: General Science Questions
Topic: Test 2
Replies: 20
Views: 252

Re: Test 2

Are all tests worth the same amount? (besides midterm of course)
by Elizabeth Harty 1A
Mon Nov 11, 2019 10:57 am
Forum: Resonance Structures
Topic: how to draw
Replies: 6
Views: 81

Re: how to draw

My TA said if you do the shorthand (with the arrows) instead of actually drawing all the structures you should write an explanation to show that you know how many there are
by Elizabeth Harty 1A
Mon Nov 11, 2019 10:56 am
Forum: Lewis Structures
Topic: Lewis Dot Structures
Replies: 7
Views: 90

Re: Lewis Dot Structures

At this point in what we have learned I don't think it matters too much.
by Elizabeth Harty 1A
Wed Nov 06, 2019 5:28 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect vs. De Broglie
Replies: 8
Views: 296

Re: Photoelectric Effect vs. De Broglie

I thought that the units for joules had the second to the power of negative 2?
by Elizabeth Harty 1A
Wed Nov 06, 2019 12:27 pm
Forum: Quantum Numbers and The H-Atom
Topic: Equations we need for midterm
Replies: 7
Views: 249

Re: Equations we need for midterm

is momentum mass times velocity?
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:15 pm
Forum: Lewis Structures
Topic: Double Bonds vs. Lone Pairs
Replies: 2
Views: 28

Re: Double Bonds vs. Lone Pairs

It depends on what the compound is and how you can minimize formal charge
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:11 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Copper and Chromium Exception
Replies: 2
Views: 49

Re: Copper and Chromium Exception

For these you just add one to the d orbital and take one from the 4s to make it 4s^1
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:09 pm
Forum: Lewis Structures
Topic: Resonance Hybrids
Replies: 3
Views: 48

Re: Resonance Hybrids

A resonance hybrid is used to show all of the resonance structures combined
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:06 pm
Forum: Dipole Moments
Topic: Definition
Replies: 5
Views: 98

Re: Definition

It happens when there is unequal charge density or separation of positive and negative charge. You can use it to measure polarity of a molecule
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:03 pm
Forum: Properties of Electrons
Topic: Resonance Structures
Replies: 2
Views: 133

Re: Resonance Structures

I'm pretty sure the formal charge doesn't change because you aren't changing connectivity just arrangement? Also you can use the dotted lines to draw resonance to show the change in bonds.
by Elizabeth Harty 1A
Sat Nov 02, 2019 5:01 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Minimize formal charge of whole molecule?
Replies: 7
Views: 84

Re: Minimize formal charge of whole molecule?

You want to overall formal charge to equal zero when you take into consideration all formal charges of atoms in species

Go to advanced search