Search found 51 matches

by ShreyaKannan1B
Sun Dec 08, 2019 11:41 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8039
Views: 1409803

Re: Post All Chemistry Jokes Here

Someone threw sodium chloride at me.
I yelled, “That’s a salt!”
by ShreyaKannan1B
Sun Dec 08, 2019 11:41 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8039
Views: 1409803

Re: Post All Chemistry Jokes Here

What should you do if no one laughs at your chemistry jokes?
Keep telling them until you get a reaction.
by ShreyaKannan1B
Sun Dec 08, 2019 11:40 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8039
Views: 1409803

Re: Post All Chemistry Jokes Here

I tried writing jokes about the periodic table…
…but I realized I wasn’t quite in my element.
by ShreyaKannan1B
Sun Dec 08, 2019 11:39 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Final question
Replies: 1
Views: 106

Final question

There was a question on the final in this section I think that asked what kind of compound some molecules were, what was it asking exactly?
by ShreyaKannan1B
Sun Dec 08, 2019 11:36 pm
Forum: Administrative Questions and Class Announcements
Topic: curve
Replies: 8
Views: 171

Re: curve

Nare Arakelian Dis 3E wrote:I have been wondering this too. All I know is 250/500 is considered a C- and then I think he is just gonna wait to see how the final average comes out and figure out the curve then


Is it true that only people with a c or lower get affected by the curve?
by ShreyaKannan1B
Sun Dec 01, 2019 8:08 pm
Forum: General Science Questions
Topic: test taking nervousness
Replies: 19
Views: 313

Re: test taking nervousness

Savannah Mance 3B wrote:I think I have the concepts down pretty well from lecture and I do all of the homework problems. But, when I take the tests I kind of blank and I think it's because I get kind of nervous. Does anyone have any advice for that?


Don't drink too much coffee beforehand. Plus do practice problems.
by ShreyaKannan1B
Sun Dec 01, 2019 8:07 pm
Forum: Naming
Topic: explain Coordination compound
Replies: 5
Views: 78

Re: explain Coordination compound

Coordination compounds form when neutral molecules or atoms (or anions) supply a central cation (usually a Tx metal) with an electron pair to form a coordinate covalent bond. These often form when Tx metals in solution first form complexes with water as the ligands, which are then replaced by more ...
by ShreyaKannan1B
Sun Dec 01, 2019 8:06 pm
Forum: Naming
Topic: Final Exam?
Replies: 20
Views: 255

Re: Final Exam?

The final exam is cumulative.
by ShreyaKannan1B
Sun Dec 01, 2019 8:05 pm
Forum: Naming
Topic: Naming for the final
Replies: 6
Views: 118

Re: Naming for the final

check out page 723 of the textbook!! but naming goes: [greek prefix; ligand name(s, in alphabetical order); transition metal cation; Roman numeral] the brackets represent coordination sphere the greek prefix (di, tri, tetra, penta) refers ti how many of the ligand there is the ligands have the endi...
by ShreyaKannan1B
Sun Dec 01, 2019 8:03 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 4
Views: 50

Coordination Number

Is the coordination number just the number of bonds on the central atom?
by ShreyaKannan1B
Sun Dec 01, 2019 8:02 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligands
Replies: 4
Views: 71

Ligands

What does it mean when it's a chelating ligand?
by ShreyaKannan1B
Sun Nov 24, 2019 8:40 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 92
Views: 1866

Re: Advice for studying

Aside from the textbook problems and online video modules, I would recommend doing to the Step-Up sessions and the upcoming midterm review sessions if you feel that you study well with others around; it would be a good way to clarify and reinforce concepts. The online modules stopped at a certain p...
by ShreyaKannan1B
Sun Nov 24, 2019 8:38 pm
Forum: Hybridization
Topic: Lone pairs
Replies: 9
Views: 115

Re: Lone pairs

The geometry of a molecule determines its hybridization. A molecule with 3 bonded atoms and one lone pair has tetrahedral geometry since it has 4 regions of electron density. This is why the molecule has a hybridization of sp 3 even though the molecule only has three bonding regions. Thanks, I was ...
by ShreyaKannan1B
Sun Nov 24, 2019 8:37 pm
Forum: Hybridization
Topic: Counting for hybridization
Replies: 2
Views: 35

Counting for hybridization

Can I just count the bonds on an atom and determine the hybridization by making sure the exponents of the s and p add up to that number? I feel like that's what I did in high school, don't remember exactly though.
by ShreyaKannan1B
Sun Nov 24, 2019 8:34 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Test 2
Replies: 14
Views: 188

Re: Test 2

Cassandra_1K wrote:Does anyone have any advice for remembering molecular shape?


I memorized the AX formula that went along with the shape.
by ShreyaKannan1B
Sun Nov 24, 2019 8:32 pm
Forum: Naming
Topic: Oxidation Numbers
Replies: 2
Views: 53

Oxidation Numbers

What does knowing the oxidation numbers tell you?
by ShreyaKannan1B
Sun Nov 17, 2019 10:40 pm
Forum: Trends in The Periodic Table
Topic: Trend for Polarizability
Replies: 6
Views: 164

Trend for Polarizability

What's the trend for polarizability?
by ShreyaKannan1B
Sun Nov 17, 2019 10:36 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: This Week Test
Replies: 12
Views: 126

Re: This Week Test

605357751 wrote:Can someone tell me which section of hw problems will be on the test please.


I think it's 3F, 2E, 2F
by ShreyaKannan1B
Sun Nov 17, 2019 10:31 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: equatorial v. axial
Replies: 4
Views: 45

Re: equatorial v. axial

What do equatorial and axial mean?
by ShreyaKannan1B
Sun Nov 17, 2019 10:30 pm
Forum: Hybridization
Topic: Test 2
Replies: 11
Views: 137

Re: Test 2

Kendra Barreras 3E wrote:I believe Lavelle said in lecture on Friday that hybridization wouldn't be on the test.


Yeah it's not on the test but sigma and pi bonds will be on there I think.
by ShreyaKannan1B
Sun Nov 10, 2019 10:53 pm
Forum: General Science Questions
Topic: Study Tips
Replies: 13
Views: 234

Re: Study Tips

TimVintsDis3C wrote:I would do the online modules and go through the problems assigned for homework. I believe all of the questions will be taken from there, so it's almost like an exact study guide.


Yeah this is probably the best way to study/learn material.
by ShreyaKannan1B
Sun Nov 10, 2019 9:53 pm
Forum: Student Social/Study Group
Topic: Study Tips
Replies: 58
Views: 2139

Re: Study Tips

At the test bank do they only give you five minutes to find what you're looking for?
by ShreyaKannan1B
Sun Nov 10, 2019 9:52 pm
Forum: Ionic & Covalent Bonds
Topic: Hydrogen Bond Strength
Replies: 8
Views: 89

Re: Hydrogen Bond Strength

Which elements does hydrogen form hydrogen bonds with?
by ShreyaKannan1B
Sun Nov 10, 2019 9:50 pm
Forum: Ionic & Covalent Bonds
Topic: Electronegativity in between 1.5 and 2
Replies: 2
Views: 55

Electronegativity in between 1.5 and 2

What do you do if the electronegative difference is between 1.5 and 2?
by ShreyaKannan1B
Sun Nov 10, 2019 9:49 pm
Forum: Ionic & Covalent Bonds
Topic: Solid v. Liquid v. Gas
Replies: 8
Views: 102

Solid v. Liquid v. Gas

How can you tell if a certain molecule is a solid, liquid, gas, or aqueous? I think Prof Lavelle went over it in a lecture but I didn't understand and know that it's related to bonding, if someone could just clarify?
by ShreyaKannan1B
Sun Nov 10, 2019 9:47 pm
Forum: Resonance Structures
Topic: Resonance structures
Replies: 15
Views: 346

Re: Resonance structures

Follow Prof Lavelle's instructions from his lecture ppt and from there it's just practicing getting fast with identifying formal charges.
by ShreyaKannan1B
Sun Nov 03, 2019 5:08 pm
Forum: *Shrodinger Equation
Topic: Calculating the probability of finding an electron at a certain location
Replies: 5
Views: 227

Re: Calculating the probability of finding an electron at a certain location

What's the difference between Heisenberg Uncertainty Principle and Shrodinger's? Is it cause Shrodinger deals with the wave function?
by ShreyaKannan1B
Sun Nov 03, 2019 5:06 pm
Forum: *Shrodinger Equation
Topic: wavefunctions & orbitals relationship?
Replies: 5
Views: 189

Re: wavefunctions & orbitals relationship?

Due to the fact that orbitals act as waves, a wave function is a mathematical function that shows the wave-like behavior of electron(s) in an atom and the probable location to finding an electron in a specific region around the nucleus of an atom. Thanks! Shrodinger's eqn has a chance of being on t...
by ShreyaKannan1B
Sun Nov 03, 2019 4:57 pm
Forum: Photoelectric Effect
Topic: Ionization Energy vs Threshold Energy
Replies: 4
Views: 64

Re: Ionization Energy vs Threshold Energy

Threshold energy and ionization energy both have to do with the minimum energy required to remove an electron from an element but threshold energy refers to the energy needed to remove an electron from a metal (photoelectric effect) while ionization energy has to do with the energy needed to remove...
by ShreyaKannan1B
Sun Nov 03, 2019 4:56 pm
Forum: Photoelectric Effect
Topic: Photoelectric effect [ENDORSED]
Replies: 6
Views: 557

Re: Photoelectric effect [ENDORSED]

Camille 4I wrote:Where did you get the number 4.200x10^-19 from?


Yeah I don't get that either.
by ShreyaKannan1B
Sun Nov 03, 2019 4:46 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Rydberg equation [ENDORSED]
Replies: 73
Views: 3731

Re: Rydberg equation [ENDORSED]

TimVintsDis3C wrote:Are all of these equations meant to be memorized, or will they be provided on tests?


Rydberg's constant is provided, but the eqn isn't. However, I think you can use E(lowercase n) = -hR/n^2 which is on the constants sheet.
by ShreyaKannan1B
Sun Oct 27, 2019 4:42 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 215
Views: 115139

Re: Advice from a Medical Student [ENDORSED]

Thanks for the advice! Any tips for the midterm?
by ShreyaKannan1B
Sun Oct 27, 2019 4:39 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Exceptions
Replies: 2
Views: 34

Exceptions

Can someone explain why Cr and Cu are exceptions?
by ShreyaKannan1B
Sun Oct 27, 2019 4:37 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Rydberg equation [ENDORSED]
Replies: 73
Views: 3731

Re: Rydberg equation [ENDORSED]

Is there any problem where you would use Rydberg with another equation?
by ShreyaKannan1B
Sun Oct 27, 2019 4:36 pm
Forum: Student Social/Study Group
Topic: Study Tips
Replies: 58
Views: 2139

Re: Study Tips

Find a lounge with a white board and work things out on there, it really helps to have everything larger and in front of you.
by ShreyaKannan1B
Sun Oct 27, 2019 4:33 pm
Forum: Properties of Light
Topic: All the formulas
Replies: 5
Views: 98

All the formulas

Can someone put all the formulas that are related to each other in one post?
by ShreyaKannan1B
Sun Oct 20, 2019 3:12 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 92
Views: 1866

Re: Advice for studying

The online modules are pretty helpful, especially taking the post-assessment. The videos aren't too in depth about the harder questions but they cover the basics really well which helps.
by ShreyaKannan1B
Sun Oct 20, 2019 3:11 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice on Homework
Replies: 13
Views: 234

Re: Advice on Homework

At least look at all of the questions and their answers if you know you won't have time to physically do them all, because then at least you have some idea of what the test questions could look like.
by ShreyaKannan1B
Sun Oct 20, 2019 3:09 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 215
Views: 115139

Re: Advice from a Medical Student [ENDORSED]

Thanks for the advice, because I'm not sure about the pre-med track so it's nice to hear from someone who has been through it.
by ShreyaKannan1B
Sun Oct 20, 2019 3:07 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: how to prepare
Replies: 22
Views: 239

Re: how to prepare

Find a study room with a white board and find some people who are also in the class so you can talk it through and draw it out on the board, that's what helps me.
by ShreyaKannan1B
Sun Oct 20, 2019 3:06 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Advice
Replies: 6
Views: 134

Re: Advice

Make a study group because it really helps to talk things out with others, especially the theoretical stuff we're doing right now with quantum numbers.
by ShreyaKannan1B
Sun Oct 13, 2019 6:30 pm
Forum: Properties of Light
Topic: Atomic Spectra Pre-Assessment #13
Replies: 1
Views: 32

Atomic Spectra Pre-Assessment #13

What is the difference between absorption line and emission line spectrum?
by ShreyaKannan1B
Sun Oct 13, 2019 6:28 pm
Forum: Properties of Light
Topic: Atomic Spectra Pre-Assessment #12
Replies: 2
Views: 30

Atomic Spectra Pre-Assessment #12

What is the experimental setup for a spectroscopic experiment?
by ShreyaKannan1B
Sun Oct 13, 2019 6:23 pm
Forum: Properties of Light
Topic: Next test
Replies: 23
Views: 389

Next test

Do we get all of the equations given to us on the next test?
by ShreyaKannan1B
Sun Oct 13, 2019 6:21 pm
Forum: Properties of Light
Topic: Photoelectric Effect Pre-Assessment
Replies: 1
Views: 19

Photoelectric Effect Pre-Assessment

Can someone clarify number 19?
by ShreyaKannan1B
Sun Oct 13, 2019 6:14 pm
Forum: Properties of Light
Topic: Photoelectric Effect
Replies: 7
Views: 71

Photoelectric Effect

Why does the experiment have to happen in a vacuum?
by ShreyaKannan1B
Sun Oct 06, 2019 8:24 pm
Forum: Molarity, Solutions, Dilutions
Topic: Dilution and Molarity in general
Replies: 1
Views: 39

Dilution and Molarity in general

For these kinds of questions (like from section G), is it mainly just knowing how to manipulate the mv = mv equation?
by ShreyaKannan1B
Sun Oct 06, 2019 8:21 pm
Forum: Molarity, Solutions, Dilutions
Topic: Homework G25
Replies: 1
Views: 41

Homework G25

I’m confused as to how to even start this question, I don’t think I’m understanding it correctly, is there any way for someone to explain it in easier terms?
by ShreyaKannan1B
Fri Oct 04, 2019 7:45 am
Forum: Molarity, Solutions, Dilutions
Topic: Homework Question E9 Part A
Replies: 1
Views: 58

Homework Question E9 Part A

I wrote out the dimensional analysis as 5.15g / 246.37g*mol^-1 * 11 mol oxygen * 6.022e23 which I'm pretty sure is the correct way (maybe not?), but when I put it into my calculator it ends up being around 86 instead of 1.38e23 (I got this answer on my calc once but I don't know how). Am I just doin...
by ShreyaKannan1B
Fri Oct 04, 2019 7:40 am
Forum: Molarity, Solutions, Dilutions
Topic: Homework Question G13
Replies: 2
Views: 60

Homework Question G13

Why do I have to multiply by the .100 L that is added to the diluted solution?
by ShreyaKannan1B
Fri Oct 04, 2019 7:38 am
Forum: Molarity, Solutions, Dilutions
Topic: Homework Question H11
Replies: 3
Views: 94

Homework Question H11

I was having trouble balancing the second part of H11, where the Fe2O3 reacts with carbon monoxide to make iron and carbon dioxide, can someone tell me how it's supposed to be done?

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