Search found 35 matches

by Ahmet_Dikyurt_3L
Sat Dec 08, 2018 4:58 pm
Forum: Bond Lengths & Energies
Topic: Review question
Replies: 3
Views: 279

Re: Review question

the answer key says c-o, but the explanation doesn't sound right. It says that since o is the smallest, but both n and c are smaller, so I really don't know.
by Ahmet_Dikyurt_3L
Thu Dec 06, 2018 10:08 pm
Forum: Bronsted Acids & Bases
Topic: donating or accepting proton
Replies: 2
Views: 79

donating or accepting proton

is donating or accepting proton same as donating and accepting h+?
by Ahmet_Dikyurt_3L
Tue Dec 04, 2018 4:32 pm
Forum: Naming
Topic: Prefix bis, tris, tetrakis, etc. [ENDORSED]
Replies: 5
Views: 203

Re: Prefix bis, tris, tetrakis, etc. [ENDORSED]

Di-, tri-, and tetra- should be used for multiple monodentate ligands while bis-, tris-, tetrakis- would be used for for multiple polydentate ligands. What is a monodentate ligand and what's a polydentate ligand? I don't understand the difference. Monodentate ligands have one e- donor to bind with ...
by Ahmet_Dikyurt_3L
Tue Dec 04, 2018 4:24 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Why is water monodentate?
Replies: 2
Views: 107

Re: Why is water monodentate?

I found this on a an earlier chemistry community post, here is the link:
viewtopic.php?t=783#p1602
by Ahmet_Dikyurt_3L
Tue Dec 04, 2018 4:19 pm
Forum: General Science Questions
Topic: Chemistry Community [ENDORSED]
Replies: 7
Views: 260

Chemistry Community [ENDORSED]

Is this the last week of chemistry community questions, or do we have to ask questions during the finals week(even though our final is on a sunday)?
by Ahmet_Dikyurt_3L
Wed Nov 28, 2018 7:45 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Square Pyramidal
Replies: 2
Views: 86

Square Pyramidal

How do we get the square pyramidal shape?
by Ahmet_Dikyurt_3L
Wed Nov 28, 2018 7:44 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz
Replies: 1
Views: 112

Quiz

What topics to study for Quiz 3?
by Ahmet_Dikyurt_3L
Wed Nov 28, 2018 7:43 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 11
Views: 391

Final

Will the final be on everything we've learned since the beginning of the quarter or everything after midterm?
by Ahmet_Dikyurt_3L
Mon Nov 19, 2018 7:17 pm
Forum: Hybridization
Topic: Unhybridized orbitals
Replies: 10
Views: 282

Re: Unhybridized orbitals

The hybridized and unhybridized bonds also help with the shape. Not the shape of the molecule per se but the shape including the electrons (lone pairs and shared)
by Ahmet_Dikyurt_3L
Mon Nov 19, 2018 7:14 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Sigma vs. Pi Bonds (What's the difference?)
Replies: 4
Views: 82

Re: Sigma vs. Pi Bonds (What's the difference?)

Every bond consists of a sigma bond, but double or triple bonds have one sigma and rest pi bonds
by Ahmet_Dikyurt_3L
Mon Nov 19, 2018 6:27 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14B
Replies: 2
Views: 119

Chem 14B

This quarter, I didn't take any math class - including LS series - (3A, 30A, 32A), and for Chem 14B, they are requisites that are not enforced but has a warning. Can I still take Chem 14B, even though there is a warning, because I heard some people that you can still enroll in the class without the ...
by Ahmet_Dikyurt_3L
Thu Nov 15, 2018 10:16 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Single Regions?
Replies: 8
Views: 180

Re: Single Regions?

I was looking through the notes and I wrote that single, double, and triple bonds are considered single regions of electron density in VSEPR model, but what does single regions mean in terms of electron density? I think a single region is just a bond (doesn't matter single, double, or triple bond) ...
by Ahmet_Dikyurt_3L
Thu Nov 15, 2018 10:13 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Double/Triple Bonds
Replies: 5
Views: 147

Double/Triple Bonds

Do double or triple bonds affect the shape or bond angles? I know that they are treated the same electron density, but does the angles change even a little?
by Ahmet_Dikyurt_3L
Thu Nov 15, 2018 10:09 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Trigonal Pyramidal
Replies: 10
Views: 130

Re: Trigonal Pyramidal

Is it because the electrons are so small (er than atoms), they don't get to be part of the naming? Because I know that only atoms are used in the naming.
by Ahmet_Dikyurt_3L
Thu Nov 08, 2018 6:29 pm
Forum: Resonance Structures
Topic: Resonance Structures
Replies: 3
Views: 175

Re: Resonance Structures

Some molecules or ions cannot be expressed by a single Lewis structure, so we must draw the resonance in order to show the variety and they are all correct.
by Ahmet_Dikyurt_3L
Thu Nov 08, 2018 6:25 pm
Forum: Lewis Structures
Topic: Radicals 3.55
Replies: 3
Views: 133

Re: Radicals 3.55

The two or three examples given in class also included b and c
by Ahmet_Dikyurt_3L
Thu Nov 08, 2018 6:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Which chapters can we do for homework?
Replies: 3
Views: 170

Re: Which chapters can we do for homework?

You should do the second half of Chapter 3, the most of first half was done last week
by Ahmet_Dikyurt_3L
Thu Nov 01, 2018 9:11 pm
Forum: Ionic & Covalent Bonds
Topic: 6th edition, 3.19b
Replies: 1
Views: 42

Re: 6th edition, 3.19b

That is 3.19e but to answer your question, we need to look at Hund's Rule. We need to fill each orbital one by one, so: In d orbital, there are 5 orbitals, so the first 5 electrons go to each orbital, then the remaining 3 goes to the first 3 orbitals. The last two orbitals are left with a single ele...
by Ahmet_Dikyurt_3L
Wed Oct 31, 2018 12:16 pm
Forum: Lewis Structures
Topic: D orbital
Replies: 4
Views: 124

D orbital

What is the maximum number of electrons can an element with a d-orbital hold, since they can hold more than 8
Like Cl, and P
by Ahmet_Dikyurt_3L
Mon Oct 29, 2018 10:54 pm
Forum: DeBroglie Equation
Topic: Uncertainty
Replies: 4
Views: 190

Re: Uncertainty

Heisenberg's Uncertainty Principle was created for very small masses, such as atoms and electrons. For example, in the example he gave us with sensors, the photons thrown changes the direction of an electron, but a photon cannot move you, or a baseball, or a fly.
by Ahmet_Dikyurt_3L
Fri Oct 26, 2018 12:35 am
Forum: Photoelectric Effect
Topic: HW Question 1.57
Replies: 4
Views: 200

Re: HW Question 1.57

Here's my work. What I did makes sense to me but I didn't know where to look for the solution so I don't know for sure that it's right. Hope it helps :)1.57Solution.JPG Hi, I couldn't understand how n2 = 7 I also looked it up online, and they also give n2 = 7 I used n2 = 7 in my homework as well bu...
by Ahmet_Dikyurt_3L
Wed Oct 24, 2018 12:23 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Spins
Replies: 4
Views: 119

Spins

Can someone explain spin ups and downs? And how they’re represented?
by Ahmet_Dikyurt_3L
Wed Oct 24, 2018 12:10 pm
Forum: Trends in The Periodic Table
Topic: Helium
Replies: 2
Views: 72

Helium

Is Helium in P-block or S-block? It appears on top of P-block with the noble gases, but has the electron configuration 1s2?
by Ahmet_Dikyurt_3L
Tue Oct 16, 2018 11:10 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Wavelengths
Replies: 5
Views: 139

Re: Wavelengths

Wavelengths are lengths, so if there is a direction given, they could have a negative value but distance-wise no. It is the same for every length.
Example: You can say -10 meters east (10 meters west)
Example: You cannot say I walked -10 meters.
Same goes for wavelengths.
by Ahmet_Dikyurt_3L
Mon Oct 15, 2018 8:01 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Textbook pages
Replies: 3
Views: 122

Re: Textbook pages

I have the 6th edition so all the pages and chapters are based on that.
De Broglie's equation is covered in 1.5 (pages 15-17)
Heisenberg's principle is covered in 1.6 (pages 17-19)
The exercises could be found on pages 25-29
by Ahmet_Dikyurt_3L
Mon Oct 15, 2018 7:55 pm
Forum: Properties of Light
Topic: Lecture
Replies: 1
Views: 44

Lecture

Hello, I was wondering if all of his lectures on the same day are the same? I might have to miss my lecture and is it ok if I go to a different one for that day? If it is, could anyone write the lecture times? Thanks
by Ahmet_Dikyurt_3L
Thu Oct 11, 2018 7:30 pm
Forum: Properties of Light
Topic: Homework for Week 2 [ENDORSED]
Replies: 3
Views: 92

Homework for Week 2 [ENDORSED]

Hello, my discussion session is on Friday, and I was wondering if we can turn in questions from Review of Chemical & Physical Principals (the fundamentals chapter), since the questions from The Quantum World are very difficult and there are only 4 questions before we get to the Atomic Spectra Se...
by Ahmet_Dikyurt_3L
Tue Oct 09, 2018 7:00 pm
Forum: Photoelectric Effect
Topic: post assessment
Replies: 2
Views: 92

Re: post assessment

I think larger means higher frequency. Based on what I think, it should be C, but that is just what I think.
by Ahmet_Dikyurt_3L
Mon Oct 08, 2018 7:56 pm
Forum: Properties of Light
Topic: Wavelength vs Frequency
Replies: 7
Views: 126

Re: Wavelength vs Frequency

I know that frequency and intensity are different but that's not the question. A wave has a frequency (time needed) and a wavelength, so they are related to each other; The distance between peaks of a wave is its wavelength. Frequency (unit = hertz) is the number of waves that pass in a given time. ...
by Ahmet_Dikyurt_3L
Mon Oct 08, 2018 7:37 pm
Forum: Administrative Questions and Class Announcements
Topic: Periodic Table
Replies: 6
Views: 125

Re: Periodic Table

I know that in the tests, they are given to us, but will periodic tables be provided in the Mid-Term or the Final? Sorry to answer your question with another one.
by Ahmet_Dikyurt_3L
Wed Oct 03, 2018 8:52 pm
Forum: SI Units, Unit Conversions
Topic: Homework Questions [ENDORSED]
Replies: 14
Views: 304

Homework Questions [ENDORSED]

I know that the homework is just 7 questions of our choice but I was wondering if we have to answer a question from every topic. For example, this week, there is E, F, G, H, L, and M, so do we have to do one from each or can I turn in all 7 from E.
by Ahmet_Dikyurt_3L
Wed Oct 03, 2018 8:41 pm
Forum: SI Units, Unit Conversions
Topic: Naming Compounds
Replies: 9
Views: 281

Re: Naming Compounds

Can someone explain how to write the formula of compounds. For example, in question E9 it asks you to write the formula for magnesium sulfate heptahydrate. You need to know the basic formulas. Some names give you clues such as ending with -ate or -ite means there is oxygen in the compound. There are...
by Ahmet_Dikyurt_3L
Wed Oct 03, 2018 8:23 pm
Forum: General Science Questions
Topic: Turning in Homework
Replies: 4
Views: 208

Re: Turning in Homework

The homework is just seven questions, but I still did most of them on my notebook, then chose the 7 that is correct for sure and write it on a separate sheet of paper. I think that helps me because I go and look over the questions I did, which is a great practice. But you don't need to do all the qu...
by Ahmet_Dikyurt_3L
Mon Oct 01, 2018 10:01 pm
Forum: General Science Questions
Topic: Periodic Table
Replies: 16
Views: 535

Re: Periodic Table

Usually, the question or the previous questions should give you an idea of how much you should round. When I round, I look at the previous questions and if they rounded to the nearest hundredth than I round to the nearest hundredth. If they do it to the thousandth than I do it to the thousandth, and...

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