Search found 30 matches

by Soyoung Park 1H
Sat Dec 08, 2018 3:02 pm
Forum: Lewis Acids & Bases
Topic: H vs H30+
Replies: 2
Views: 61

H vs H30+

How are hydrogen atoms and hydronium ions the same?
by Soyoung Park 1H
Sat Dec 08, 2018 2:57 pm
Forum: Dipole Moments
Topic: London Dispersion
Replies: 5
Views: 256

Re: London Dispersion

The size of the atoms/ molecules have to be taken into consideration as well, not just the forces.
by Soyoung Park 1H
Sat Dec 08, 2018 2:45 pm
Forum: Empirical & Molecular Formulas
Topic: Mols to atoms
Replies: 1
Views: 171

Re: Mols to atoms

Yes you would multiply 6 by Avogadro's number so it would be 6 mol C x (6x6.022x10^23atoms/mol) which comes out to be 2.17x10^25 atoms.
by Soyoung Park 1H
Sun Dec 02, 2018 4:31 pm
Forum: Lewis Acids & Bases
Topic: Weak and Strong Acids/Bases
Replies: 7
Views: 147

Re: Weak and Strong Acids/Bases

Do we have to memorize all the 7 strong acids for the coming up final?
by Soyoung Park 1H
Sun Dec 02, 2018 3:09 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: How to determine shape of coordination compound
Replies: 3
Views: 87

Re: How to determine shape of coordination compound

Tetrahedral has 4 areas of electron density while square planar has 3, and they both have 0 lone pairs.
by Soyoung Park 1H
Sun Nov 25, 2018 9:51 pm
Forum: Administrative Questions and Class Announcements
Topic: Curve
Replies: 5
Views: 166

Re: Curve

Crying on the inside TT
by Soyoung Park 1H
Sun Nov 25, 2018 9:49 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Sigma and pi bonds
Replies: 4
Views: 78

Re: Sigma and pi bonds

The greater the overlap, the higher probability the valence e- in between the nuclei which means stronger and shorter bonds.
by Soyoung Park 1H
Sun Nov 25, 2018 9:26 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Test
Replies: 5
Views: 117

Re: Test

Adding onto that, you can study bond angles and the shape names:)
by Soyoung Park 1H
Fri Nov 16, 2018 12:38 am
Forum: Hybridization
Topic: How to Determine
Replies: 12
Views: 325

Re: How to Determine

Does hybridization relate to AX2 and AX3? What do these mean??
by Soyoung Park 1H
Fri Nov 16, 2018 12:35 am
Forum: Administrative Questions and Class Announcements
Topic: Homework Due Week 7
Replies: 10
Views: 288

Re: Homework Due Week 7

Is the test over both outlines 3 and 4?
by Soyoung Park 1H
Fri Nov 16, 2018 12:29 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Repulsion Strength
Replies: 7
Views: 109

Re: Repulsion Strength

What's the difference between bent and angular molecular shapes?
by Soyoung Park 1H
Thu Nov 15, 2018 12:46 am
Forum: Bond Lengths & Energies
Topic: Strength of Bonds
Replies: 9
Views: 222

Re: Strength of Bonds

Are we going to have problems where we have to calculate the strengths of bonds?
by Soyoung Park 1H
Thu Nov 15, 2018 12:27 am
Forum: Determining Molecular Shape (VSEPR)
Topic: What to memorize in VSEPR?
Replies: 8
Views: 173

Re: What to memorize in VSEPR?

So what is exactly VSEPR model?
by Soyoung Park 1H
Thu Nov 15, 2018 12:17 am
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: polar vs nonpolar
Replies: 6
Views: 165

Re: polar vs nonpolar

What does it mean to be a highly distorted e-?
by Soyoung Park 1H
Mon Nov 05, 2018 1:03 am
Forum: Octet Exceptions
Topic: Formal charge
Replies: 7
Views: 149

Re: Formal charge

Do you always check for formal charges even for single bonds?
by Soyoung Park 1H
Mon Nov 05, 2018 1:01 am
Forum: Octet Exceptions
Topic: The center atom
Replies: 20
Views: 499

Re: The center atom

How do you know what center atom is for the lewis structure?
by Soyoung Park 1H
Mon Nov 05, 2018 12:50 am
Forum: Lewis Structures
Topic: Lewis Structures
Replies: 11
Views: 142

Re: Lewis Structures

When do you use brackets around the lewis structures?
by Soyoung Park 1H
Sun Oct 28, 2018 11:40 pm
Forum: Ionic & Covalent Bonds
Topic: Bond
Replies: 9
Views: 173

Re: Bond

As bonds increase, does energy increase? Also, are shared pairs stronger than lone pairs?
by Soyoung Park 1H
Sun Oct 28, 2018 11:22 pm
Forum: Ionic & Covalent Bonds
Topic: Ground State
Replies: 6
Views: 141

Re: Ground State

What does having lowest energy e- configuration mean exactly?
by Soyoung Park 1H
Sun Oct 28, 2018 11:12 pm
Forum: Ionic & Covalent Bonds
Topic: Lewis Dot Structures: Ionization Energy
Replies: 6
Views: 120

Re: Lewis Dot Structures: Ionization Energy

Does anyone know where to start drawing dots? For Chlorine for example, all sides have two dots except for the left one. I'm not sure of the order.
by Soyoung Park 1H
Sun Oct 21, 2018 11:14 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Orbitals on the test
Replies: 6
Views: 142

Re: Orbitals on the test

The pictures that Professor Lavelle had on the presentation on Friday about d orbitals had cones and planes surrounding the orbitals while pictures in google images don't include them. What do they mean?
by Soyoung Park 1H
Sun Oct 21, 2018 10:46 pm
Forum: DeBroglie Equation
Topic: De Broglie
Replies: 12
Views: 415

Re: De Broglie

When do you know to use the De Brogile equation? Will the questions always contain the words "De Brogile wavelength?"
by Soyoung Park 1H
Sun Oct 21, 2018 10:27 pm
Forum: Properties of Electrons
Topic: Atomic Spectra
Replies: 4
Views: 100

Re: Atomic Spectra

Will we only get questions related to Atomic Spectra and energy levels about the H-atom? Also what is the difference between the Ballmer series and Lyman series besides the region differences?
by Soyoung Park 1H
Sat Oct 13, 2018 11:26 pm
Forum: Properties of Light
Topic: E=hv
Replies: 13
Views: 202

Re: E=hv

What does a photon of energy mean?
by Soyoung Park 1H
Sat Oct 13, 2018 11:24 pm
Forum: Einstein Equation
Topic: Numbers to memorize
Replies: 24
Views: 689

Numbers to memorize

Do we have to memorize numbers such as c=3.00x10^8 m/s and planck's constant (h=6.63x10^-34Js) for the test?
by Soyoung Park 1H
Sat Oct 13, 2018 11:07 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect
Replies: 2
Views: 60

Photoelectric Effect

When do you use photoelectric effect equation? The equation says (E=hv)-(work function)=Ex. What does Ex mean and stand for?
by Soyoung Park 1H
Sat Oct 06, 2018 2:44 pm
Forum: Limiting Reactant Calculations
Topic: Section L, #35
Replies: 2
Views: 71

Re: Section L, #35

I was working on that problem too and I got wondering about the same thing! Can anyone help us out?
by Soyoung Park 1H
Sat Oct 06, 2018 2:34 pm
Forum: Administrative Questions and Class Announcements
Topic: Registering/Creating Your Chemistry Community Account
Replies: 17
Views: 23871

Re: Registering/Creating Your Chemistry Community Account

Are the posts due on Saturday or Sunday of every week?
by Soyoung Park 1H
Sat Oct 06, 2018 2:27 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 96
Views: 51122

Re: Advice from a Medical Student [ENDORSED]

Thank you so much! After reading your post, I am not as worried as before about the class!

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