Search found 51 matches

by JasonKwon_3k
Sun Dec 08, 2019 7:07 pm
Forum: Naming
Topic: Chelating
Replies: 3
Views: 90

Re: Chelating

yes if they have lone pairs to donate and are relatively made of sigma bonds so it can be rotated.
by JasonKwon_3k
Sun Dec 08, 2019 7:07 pm
Forum: Octet Exceptions
Topic: Octet exception
Replies: 13
Views: 396

Re: Octet exception

elements after the third period are where they will be able to display expanded octet behavior.
by JasonKwon_3k
Sun Dec 08, 2019 7:06 pm
Forum: Hybridization
Topic: Pi bond
Replies: 10
Views: 172

Re: Pi bond

Yes because pi bonds are a formation resulting from unhybridized p orbitals.
by JasonKwon_3k
Sun Dec 08, 2019 7:05 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angles
Replies: 5
Views: 126

Re: bond angles

bond angles will be dependent on the electron arrangement and determining if they are less than a certain angle will be the effect of lone pairs.
by JasonKwon_3k
Sun Dec 08, 2019 7:02 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Ph and poH of weak acids
Replies: 8
Views: 86

Re: Ph and poH of weak acids

This is no longer on the curriculum for 14a. Instead, we will be learning about it in 14b.
by JasonKwon_3k
Sun Dec 01, 2019 11:32 pm
Forum: Naming
Topic: Naming coordination compounds
Replies: 5
Views: 45

Re: Naming coordination compounds

The roman numeral is the indication of the transition metals oxidation state.
by JasonKwon_3k
Sun Dec 01, 2019 11:31 pm
Forum: Administrative Questions and Class Announcements
Topic: Studying for final exam
Replies: 8
Views: 98

Re: Studying for final exam

I will be reading through the textbook and doing the practice problems given to us in the outline!
by JasonKwon_3k
Sun Dec 01, 2019 11:26 pm
Forum: Naming
Topic: Order of Ligands
Replies: 4
Views: 38

Re: Order of Ligands

If something needs to be emphasized, the ordering of ligands would be different.
by JasonKwon_3k
Sun Dec 01, 2019 11:25 pm
Forum: Bronsted Acids & Bases
Topic: Final Breakdown
Replies: 1
Views: 28

Re: Final Breakdown

It should be equal parts of all but if anything, it should focus more on the material after the midterm.
by JasonKwon_3k
Sun Dec 01, 2019 11:20 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: pka v. ka
Replies: 4
Views: 52

Re: pka v. ka

pKa = -log(ka)
by JasonKwon_3k
Sat Nov 23, 2019 8:53 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: Best Approach to Find IMFs
Replies: 11
Views: 157

Re: Best Approach to Find IMFs

You should start with Lewis structures and then measure the dipole moments to see if it is really nonpolar.
by JasonKwon_3k
Sat Nov 23, 2019 8:47 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: Vapor Pressure/Boiling Point/Melting Point
Replies: 2
Views: 49

Re: Vapor Pressure/Boiling Point/Melting Point

Melting point is due to the ability of the molecules able to vibrate with energy inputted by heat, eventually reaching the gas state. However, the vapor pressure decreases the distance between the molecules by pushing them together, thus increasing the attractions between them, which increase the bo...
by JasonKwon_3k
Sat Nov 23, 2019 8:37 pm
Forum: *Black Body Radiation
Topic: Equation
Replies: 2
Views: 115

Re: Equation

We probably won't ever need to.
by JasonKwon_3k
Sat Nov 23, 2019 8:35 pm
Forum: Naming
Topic: Latin Names of Atoms
Replies: 4
Views: 45

Re: Latin Names of Atoms

You only really need to know the English name as opposed to its Latin name.
by JasonKwon_3k
Sun Nov 17, 2019 8:32 pm
Forum: Sigma & Pi Bonds
Topic: sigma and pi bonds
Replies: 4
Views: 33

Re: sigma and pi bonds

These bonds are important as they utilize molecular orbital theory to predict behaviors between molecules.
by JasonKwon_3k
Sun Nov 17, 2019 8:30 pm
Forum: Bond Lengths & Energies
Topic: 3F5 a
Replies: 2
Views: 38

Re: 3F5 a

This is because nacl is a crystal lattice structure instead of a simple ionic compound, which requires more energy to break.
by JasonKwon_3k
Sun Nov 17, 2019 8:26 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: Boiling Points
Replies: 7
Views: 70

Re: Boiling Points

It ultimately boils down (haha get it) to the strength of the bonds that are present in the compound. If bond strengths are greater, it takes more energy to weaken them thus requiring greater heat to provide that energy.
by JasonKwon_3k
Sun Nov 17, 2019 8:20 pm
Forum: Bond Lengths & Energies
Topic: Angle Distortion
Replies: 4
Views: 53

Re: Angle Distortion

To answer by which factor the distortion affects the bond angles, you can remember the order in which they vary in strength (with lone pair-lone pair being the greatest and atom-atom) being the least.
by JasonKwon_3k
Sun Nov 10, 2019 1:59 am
Forum: Bond Lengths & Energies
Topic: test 2
Replies: 16
Views: 148

Re: test 2

There may be topics that he might refer to concepts before the midterm, but it won't be the main aspect.
by JasonKwon_3k
Sun Nov 10, 2019 1:56 am
Forum: Dipole Moments
Topic: Polarizing Power
Replies: 3
Views: 37

Re: Polarizing Power

Smaller and higher charged cations have higher polarizing power due to their nucleus, the positive charge, being more exposed to the anion, thus having a stronger pull on the valence electrons of the anion. This creates a greater distortion, which indicates a higher polarizing power.
by JasonKwon_3k
Sun Nov 10, 2019 1:56 am
Forum: Dipole Moments
Topic: Polarizing Power
Replies: 3
Views: 37

Re: Polarizing Power

Smaller and higher charged cations have higher polarizing power due to their nucleus, the positive charge, being more exposed to the anion, thus having a stronger pull on the valence electrons of the anion. This creates a greater distortion, which indicates a higher polarizing power.
by JasonKwon_3k
Sun Nov 10, 2019 1:54 am
Forum: Dipole Moments
Topic: Boiling Point
Replies: 11
Views: 127

Re: Boiling Point

The higher the boiling point, the stronger the IMFs are because the more energy it takes for them to boil due to stronger bonds. Therefore, the stronger the bond, the higher the boiling point.
by JasonKwon_3k
Sun Nov 10, 2019 1:53 am
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: Polarization of Large Atom
Replies: 2
Views: 35

Re: Polarization of Large Atom

This is due to the fact that due to a higher number of electrons, this increases the atomic radius, creating valence electrons that are on average farther from the nuclei, thus a lower positive charge felt by them. This allows them to be less tightly attracted, being more easily to form dipole charg...
by JasonKwon_3k
Sun Nov 10, 2019 1:50 am
Forum: Administrative Questions and Class Announcements
Topic: Second Discussion Test
Replies: 9
Views: 132

Re: Second Discussion Test

I assume the next test will be in two or three weeks (in that range) but the material it will cover will be entirely dependent on the teaching pace.
by JasonKwon_3k
Sun Nov 03, 2019 4:07 pm
Forum: Bond Lengths & Energies
Topic: Resonance bond length
Replies: 4
Views: 48

Re: Resonance bond length

Yes, the resonance bond length is the average length, but not exactly because of delocalization.
by JasonKwon_3k
Sun Nov 03, 2019 4:05 pm
Forum: Octet Exceptions
Topic: What are radicals
Replies: 7
Views: 74

Re: What are radicals

Radicals are electrons with unpaired spins, some examples being the methyl radical or nitrogen monoxide. They are very reactive therefore very fleeting as well. There are also biradicals, which are molecules with 2 unpaired e-.
by JasonKwon_3k
Sun Nov 03, 2019 4:03 pm
Forum: Lewis Structures
Topic: Steps to Drawing a Lewis Structure
Replies: 6
Views: 56

Re: Steps to Drawing a Lewis Structure

1) count valence e- for each atom
2) determine the central atom (one with lowest ionization energy)
3) arrange atoms symmetrically around the central atom
4) assign the electron pairs
by JasonKwon_3k
Sun Nov 03, 2019 3:57 pm
Forum: Resonance Structures
Topic: Resonance structures
Replies: 5
Views: 50

Re: Resonance structures

Resonance structure help spread out the multiple bond properties throughout the whole structure, allowing us to find the most stable variation of the structure.
by JasonKwon_3k
Sun Nov 03, 2019 3:56 pm
Forum: Ionic & Covalent Bonds
Topic: middle atom
Replies: 13
Views: 93

Re: middle atom

The central atom will usually be the atom that is stated first in the chemical equation. You can determine it by using ionization energy, as the atom with the lowest ionization energy will take up the role of central atom.
by JasonKwon_3k
Sat Oct 26, 2019 11:24 pm
Forum: Lewis Structures
Topic: Anion
Replies: 7
Views: 93

Re: Anion

The Lewis structure of anion must have one less electron than it would usually have, in addition to the brackets around the overall compound.
by JasonKwon_3k
Sat Oct 26, 2019 11:22 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Lowering Formal Charge
Replies: 6
Views: 92

Re: Lowering Formal Charge

You want the overall formal charge to be the lowest, where each atom is at the lowest overall charge it can be.
by JasonKwon_3k
Sat Oct 26, 2019 11:13 pm
Forum: General Science Questions
Topic: Week 5 homework
Replies: 2
Views: 43

Re: Week 5 homework

For week 5, the homework would be on chemical bonds.
by JasonKwon_3k
Sat Oct 26, 2019 11:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Extra help
Replies: 8
Views: 152

Re: Extra help

In my opinion, Bozeman science helps out the most in regards to going in-depth about specific concepts.
by JasonKwon_3k
Sat Oct 26, 2019 11:09 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm
Replies: 11
Views: 145

Re: Midterm

The midterm will cover the topic of chemical bonds.
by JasonKwon_3k
Sun Oct 20, 2019 12:36 pm
Forum: *Particle in a Box
Topic: Particle in A box
Replies: 8
Views: 250

Re: Particle in A box

Particle in a box is a concept that is a way of looking at the concept of the quantized energy levels of electrons. It can be used with any wave model, being related to that of an acoustic guitar string. However, Lavelle stated you didn't need to focus on this concept.
by JasonKwon_3k
Sun Oct 20, 2019 12:34 pm
Forum: *Black Body Radiation
Topic: What do I really need to know?
Replies: 6
Views: 181

Re: What do I really need to know?

Black bodies are a concept that is established in physics, where it is defined as an object that can emit and absorb light perfectly- which is unrealistic when you think about it. You won't need to be aware of this concept specifically in chemistry though.
by JasonKwon_3k
Sun Oct 20, 2019 12:30 pm
Forum: Properties of Electrons
Topic: d vs s orbitals
Replies: 6
Views: 80

Re: d vs s orbitals

The rows of Chromium and Copper are the exceptions, and I feel that this is just memorization. You need to know that they are exceptions.
by JasonKwon_3k
Sun Oct 20, 2019 12:28 pm
Forum: Administrative Questions and Class Announcements
Topic: UA Session and Step-Up Program
Replies: 4
Views: 40

Re: UA Session and Step-Up Program

I went to one and I believe that these are really helpful if you are struggling with a specific concept, or just confused in general. They will participate in discussions or help you individually. I recommend using this resource to your advantage.
by JasonKwon_3k
Sun Oct 20, 2019 12:25 pm
Forum: Properties of Light
Topic: 1A.9 Energy of Photon
Replies: 12
Views: 131

Re: 1A.9 Energy of Photon

The energy of an individual photon can be calculated by the equation E=hv, with h being Planck's constant. By calculating "E", you calculate the energy of ONE photon, that can be transfered.
by JasonKwon_3k
Sun Oct 13, 2019 8:43 pm
Forum: Properties of Electrons
Topic: electrons
Replies: 3
Views: 33

Re: electrons

Everything can be considered as a wave according to the wave-particle duality. For one can see the particle act as a wave or not, it depends on the mass.
by JasonKwon_3k
Sun Oct 13, 2019 8:35 pm
Forum: Properties of Light
Topic: Speed of light.
Replies: 10
Views: 96

Re: Speed of light.

The speed of light will usually always be given as a constant when doing problems.
by JasonKwon_3k
Sun Oct 13, 2019 8:33 pm
Forum: SI Units, Unit Conversions
Topic: knowing how many sig figs to use
Replies: 17
Views: 242

Re: knowing how many sig figs to use

You want to match the number of decimal places that correlates to the correct number of significant figures.
by JasonKwon_3k
Sun Oct 13, 2019 8:31 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radius
Replies: 16
Views: 257

Re: Atomic Radius

Atomic shielding prevents outer electrons from being that attracted to the nucleus, thus resulting in a larger atomic radius.
by JasonKwon_3k
Sun Oct 13, 2019 8:22 pm
Forum: Photoelectric Effect
Topic: Avogadro's number
Replies: 7
Views: 112

Re: Avogadro's number

You divide by Avagadro's number to find the answer in relation to one atom/photon, which is usually how the questions will be phrased.
by JasonKwon_3k
Sat Oct 05, 2019 2:48 am
Forum: Administrative Questions and Class Announcements
Topic: Study Tips/Schedule
Replies: 4
Views: 79

Re: Study Tips/Schedule

I usually just review my notes maybe 3 or 4 times, watching videos on topics that I don't have a good grasp on.
by JasonKwon_3k
Sat Oct 05, 2019 2:46 am
Forum: Properties of Light
Topic: Quantum Mechanics
Replies: 9
Views: 140

Re: Quantum Mechanics

n refers to the energy level that an electron can exist in.
by JasonKwon_3k
Sat Oct 05, 2019 2:45 am
Forum: Properties of Light
Topic: "n" variable
Replies: 3
Views: 49

Re: "n" variable

n refers to the energy level that an electron can be in.
by JasonKwon_3k
Sat Oct 05, 2019 2:35 am
Forum: Limiting Reactant Calculations
Topic: Study Strategies/Youtube Videos
Replies: 14
Views: 252

Re: Study Strategies/Youtube Videos

In my opinion, Bozeman science really helps with succinctly elaborating on the topics along with providing experimental models that better help you understand the concepts.
by JasonKwon_3k
Sat Oct 05, 2019 2:33 am
Forum: Balancing Chemical Reactions
Topic: Compound names
Replies: 11
Views: 154

Re: Compound names

When determining the formula for nitrous acid, you look at the suffix of "nitrous", that being "-ous". This is a classification of an oxoacid that refers to the compound with fewer oxygen atoms (as opposed to "-ic" referring to a compound that has more oxygen atoms). Ad...

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