Search found 50 matches

by Kyle Thorin
Sun Dec 08, 2019 4:06 am
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: LDF
Replies: 4
Views: 158

LDF

Do all molecules have LDF? And when can I tell if a molecule has dipole-induced dipole?
by Kyle Thorin
Sun Dec 08, 2019 4:03 am
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Hydrogen
Replies: 3
Views: 134

Hydrogen

How can we count the number of bonding sites on a molecule. (do we include lone pairs?)
by Kyle Thorin
Sun Dec 08, 2019 3:50 am
Forum: Quantum Numbers and The H-Atom
Topic: msub l
Replies: 1
Views: 106

msub l

if we are supposed to give the quantum number for msub l, can we choose any number as long as it is in between -l and l?
by Kyle Thorin
Sun Dec 08, 2019 3:37 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty
Replies: 1
Views: 120

Uncertainty

Will delta X always be given (whether it be through diameter or plus/minus some number)
by Kyle Thorin
Sun Dec 08, 2019 3:31 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty
Replies: 7
Views: 403

Uncertainty

Are Uncertainty and Indeterminacy the same thing in this equation?
by Kyle Thorin
Sun Dec 08, 2019 3:08 am
Forum: DeBroglie Equation
Topic: Velocity
Replies: 13
Views: 382

Re: Velocity

This is unreasonable because the fastest thing we know is light.
by Kyle Thorin
Sun Dec 08, 2019 3:06 am
Forum: DeBroglie Equation
Topic: DeBroglie
Replies: 2
Views: 215

DeBroglie

Is the DeBroglie Equation only going to be used when mass or velocity is required?
by Kyle Thorin
Sun Dec 08, 2019 3:04 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: strong acids and bases
Replies: 1
Views: 52

strong acids and bases

What are strong acids and bases that we should know for the test?
by Kyle Thorin
Sun Dec 08, 2019 1:20 am
Forum: Biological Examples
Topic: EDTA
Replies: 3
Views: 130

EDTA

What is EDTA and what is it used for?
by Kyle Thorin
Sun Dec 08, 2019 1:11 am
Forum: Biological Examples
Topic: Cisplatin
Replies: 5
Views: 160

Re: Cisplatin

In the cis- molecule, the Chlorines are on the same side so they are both able to bind to adjacent Guanines on a DNA strip. in transplatin the Cl will be on opposite side, so only one Cl will be able to bond with the Guanine.
by Kyle Thorin
Sun Dec 08, 2019 1:07 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: chelating ligands [ENDORSED]
Replies: 21
Views: 6223

Re: chelating ligands [ENDORSED]

Sigma bonds have the ability to rotate already.
by Kyle Thorin
Sun Dec 08, 2019 1:04 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Co3 2-
Replies: 1
Views: 116

Co3 2-

Why would CO3 2- be monodentate or bidentate when there are three oxygens with lone pairs to be bonding sites?
by Kyle Thorin
Sun Dec 08, 2019 12:37 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligand Polydentate
Replies: 1
Views: 114

Ligand Polydentate

How can I determine how many bonding sites a ligand has?
by Kyle Thorin
Sun Dec 08, 2019 12:04 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Metallocene (sandwich) [ENDORSED]
Replies: 1
Views: 121

Metallocene (sandwich) [ENDORSED]

How will we know that a complex is "sandwiched," making the structure Metallocene? And will we need to know this for the test?
by Kyle Thorin
Sun Dec 08, 2019 12:00 am
Forum: Naming
Topic: naming
Replies: 2
Views: 55

naming

I'm confused when to use -ate vs just stating the atom. E.g. Ferrate vs Iron.
by Kyle Thorin
Sat Dec 07, 2019 10:30 pm
Forum: Naming
Topic: Numerical Prefixes
Replies: 2
Views: 36

Numerical Prefixes

When do we use di vs bis, tri vs tris, etc.?
by Kyle Thorin
Sat Dec 07, 2019 10:16 pm
Forum: Hybridization
Topic: Steps
Replies: 1
Views: 94

Steps

What are the steps in figuring out the Hybridization of a molecule?
by Kyle Thorin
Sat Dec 07, 2019 10:16 pm
Forum: Hybridization
Topic: Hybridization
Replies: 1
Views: 94

Hybridization

Will hybridization always be the same depending on the electron density of the molecule?
by Kyle Thorin
Sat Dec 07, 2019 10:14 pm
Forum: Lewis Acids & Bases
Topic: Lewis vs Bronsted
Replies: 7
Views: 195

Lewis vs Bronsted

What is the difference between Lewis and Bronsted Acids and Bases
by Kyle Thorin
Sat Dec 07, 2019 10:13 pm
Forum: Bronsted Acids & Bases
Topic: Strong Acids and Bases
Replies: 1
Views: 91

Strong Acids and Bases

Should I just memorize all the strong acids and bases for the final
by Kyle Thorin
Sat Dec 07, 2019 10:13 pm
Forum: Bronsted Acids & Bases
Topic: Strong Acids and Bases
Replies: 1
Views: 88

Strong Acids and Bases

How do I know if something is a strong acid or a strong base?
by Kyle Thorin
Mon Nov 18, 2019 2:08 pm
Forum: Administrative Questions and Class Announcements
Topic: Second Discussion Test
Replies: 9
Views: 160

Re: Second Discussion Test

Test 2 covers all material since midterm up to and including the list below: • Use the Valence-Shell Electron-Pair Repulsion Model (VSEPR) to determine the shape of inorganic, organic, and small biological molecules, cations, and anions. • Use bond dipole moments and shape to determine if a molecule...
by Kyle Thorin
Mon Nov 18, 2019 2:00 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Condition for pi bond
Replies: 4
Views: 59

Condition for pi bond

Can you form a pi bond without a sigma bond being present in the same molecule? Or will there also be a sigma bond if you have a pi bond?
by Kyle Thorin
Mon Nov 18, 2019 1:56 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: pi bond
Replies: 2
Views: 59

pi bond

How can I distinguish a pi bond vs a sigma bond when they both require two orbitals and electrons to form?
by Kyle Thorin
Mon Nov 18, 2019 1:55 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: sigma bond
Replies: 7
Views: 240

sigma bond

What is a sigma bond, and what does the s-s overlap, s-p overlap, and p-p overlap mean?
by Kyle Thorin
Mon Nov 18, 2019 1:47 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AXE notation
Replies: 10
Views: 111

Re: AXE notation

In AXE notation the A means the central atom, X represents an attached atom, and E represents a lone pair
by Kyle Thorin
Mon Nov 18, 2019 1:29 pm
Forum: Bond Lengths & Energies
Topic: Test 2 Topics
Replies: 40
Views: 828

Re: Test 2 Topics

Test 2 covers all material since midterm up to and including the list below: • Use the Valence-Shell Electron-Pair Repulsion Model (VSEPR) to determine the shape of inorganic, organic, and small biological molecules, cations, and anions. • Use bond dipole moments and shape to determine if a molecule...
by Kyle Thorin
Mon Nov 18, 2019 1:27 pm
Forum: Sigma & Pi Bonds
Topic: Sigma and Pi Bonds
Replies: 4
Views: 64

Sigma and Pi Bonds

Will single bonds always be a sigma bond.
Double bond be a sigma bond and a pi bond.
Triple bond be a sigma bond plus 2 pi bonds?
Do these happen in all cases
by Kyle Thorin
Mon Nov 18, 2019 1:18 pm
Forum: Dipole Moments
Topic: Dipole moments
Replies: 4
Views: 58

Dipole moments

In which direction do you draw the dipole moments for the test. Towards the more negative partial charge or towards the more positive partial charge?
by Kyle Thorin
Sun Oct 27, 2019 4:11 pm
Forum: Resonance Structures
Topic: Determining Resonance
Replies: 3
Views: 44

Re: Determining Resonance

The Lewis Structure with the formal charge closest to 0 is the most stable
by Kyle Thorin
Sun Oct 27, 2019 4:05 pm
Forum: Resonance Structures
Topic: Resonance Structures
Replies: 5
Views: 72

Re: Resonance Structures

The Lewis Structure with the formal charge closest to 0 is the most stable and therefore the most accurate. Lavelle will go into more detail in next week's lectures, but you generally want to draw the most stable Lewis Structure.
by Kyle Thorin
Sun Oct 27, 2019 3:19 pm
Forum: Lewis Structures
Topic: expanded-octet
Replies: 4
Views: 57

expanded-octet

I know Dr. Lavelle mentioned this in class, but why exactly are we allowed to use an expanded-octet?
by Kyle Thorin
Sun Oct 27, 2019 3:14 pm
Forum: Lewis Structures
Topic: Lewis Structure
Replies: 5
Views: 66

Lewis Structure

In drawing the Lewis Structure for Sulfate, why is it more accurate to draw the structure with two double bonds than just lone pairs on each oxygen atom.
by Kyle Thorin
Sun Oct 27, 2019 3:11 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 5
Views: 90

Formal Charge

What would the Formal Charge equation be used for and what does each letter in the equation represent?
by Kyle Thorin
Fri Oct 18, 2019 3:23 am
Forum: Properties of Electrons
Topic: electron
Replies: 3
Views: 69

electron

what are the constants revolving around the electron? E.g. Mass of electron, wavelength of electron, etc.
by Kyle Thorin
Fri Oct 18, 2019 3:13 am
Forum: *Shrodinger Equation
Topic: Schrodinger Equation
Replies: 3
Views: 76

Schrodinger Equation

What is Schrodinger's equation and what will I be able to find using it? Also, what does Ψ mean as used in this equation?
by Kyle Thorin
Fri Oct 18, 2019 3:11 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: quantum number n, l, m
Replies: 13
Views: 155

quantum number n, l, m

In class Dr. Lavelle said that a wave function that is a solution with quantum numbers n, l, m, is called an orbital. What do the n, l, and m mean exactly and how would I be able to calculate them
by Kyle Thorin
Fri Oct 18, 2019 3:04 am
Forum: Properties of Light
Topic: Constants/equations
Replies: 2
Views: 70

Constants/equations

What constants and equations should we be able to know thoroughly?
by Kyle Thorin
Fri Oct 18, 2019 2:58 am
Forum: Photoelectric Effect
Topic: Speed of Light
Replies: 29
Views: 325

Re: Speed of Light

The speed of light is a constant. It is 2.998 x 10^8 m/s
by Kyle Thorin
Fri Oct 18, 2019 2:58 am
Forum: Photoelectric Effect
Topic: Speed of Light
Replies: 29
Views: 325

Re: Speed of Light

The speed of light is a constant. It is 2.998 x 10^8 m/s
by Kyle Thorin
Thu Oct 10, 2019 8:54 pm
Forum: Significant Figures
Topic: for test 1
Replies: 3
Views: 132

Re: for test 1

For the test, it is strictly important that you round to the correct number of sig figs. In order to make sure you round to the right number, you should look at the problem and use the least amount of sig figs presented in the question as the amount of sig figs in your answer. Presenting the incorre...
by Kyle Thorin
Thu Oct 10, 2019 8:52 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: for test 1
Replies: 6
Views: 132

Re: for test 1

You should have a general understanding of what these terms mean, but you won't have to know them verbatim for the test. Understanding these terms also means you know how to apply them in a given question.
by Kyle Thorin
Thu Oct 10, 2019 8:51 pm
Forum: Limiting Reactant Calculations
Topic: Finding Limiting Reactant
Replies: 3
Views: 133

Re: Finding Limiting Reactant

A limiting reactant is the reactant that gets consumed first in the reaction. In order to find it, you must convert each reactant into the number of moles and compare based on the mole ratios. Whichever reactant has the least number of moles is the limiting reactant
by Kyle Thorin
Thu Oct 10, 2019 8:45 pm
Forum: Significant Figures
Topic: %Mass Composition
Replies: 12
Views: 323

Re: %Mass Composition

The first thing you should do is look at the question. It is important that you use the least number of sig figs presented in the question.
by Kyle Thorin
Thu Oct 10, 2019 8:37 pm
Forum: SI Units, Unit Conversions
Topic: Angstrom
Replies: 16
Views: 455

Re: Angstrom

An angstrom is a unit of length equal to 10⁻¹⁰ m. Its symbol is Å.
by Kyle Thorin
Thu Oct 03, 2019 10:06 pm
Forum: SI Units, Unit Conversions
Topic: When to use what units
Replies: 5
Views: 126

When to use what units

Is it okay if I use mL or mmol to find molarity/volume/moles, or do I have to convert those values to liters and moles?
by Kyle Thorin
Thu Oct 03, 2019 10:04 pm
Forum: SI Units, Unit Conversions
Topic: 2.Mass Percentage and Decimal Rounding:
Replies: 10
Views: 124

Re: 2.Mass Percentage and Decimal Rounding:

Generally, you're going to want to round to the hundredths so that when you convert to grams you are precise to two decimals, which is usually sufficient for a chemical equation.
by Kyle Thorin
Thu Oct 03, 2019 4:14 pm
Forum: SI Units, Unit Conversions
Topic: Clarification for SI Units
Replies: 4
Views: 82

Re: Clarification for SI Units

Dr. Lavelle also mentioned that Angstrom (Å) is often used in chemistry, which is equivalent to 10^(-10) m
by Kyle Thorin
Wed Oct 02, 2019 8:53 am
Forum: Significant Figures
Topic: General Rules to Help with Sig Figs
Replies: 18
Views: 420

Re: General Rules to Help with Sig Figs

Generally, chemistry problems will require you to round at least to the hundredth. The more precise your answer is, generally the more significant figures you'll want in your answer. When doing calculations, it is common to at least round to the hundredth.
by Kyle Thorin
Wed Oct 02, 2019 8:40 am
Forum: Limiting Reactant Calculations
Topic: Module example question [ENDORSED]
Replies: 2
Views: 49

Re: Module example question [ENDORSED]

After calculating the molar mass of the reactants, you're going to want to calculate the number of moles in each reactant. 100g/(molar mass). You'll then get 1.56 moles of CaC2 and 5.55 moles of H2O. if you look at the balanced equation CaC2 + 2H2O -> Ca + C2H2, you'll see that one mole of CaC2 and ...

Go to advanced search