I just wanted to make sure that i did get this right:
Basically to find out if a compound is polydentate and how many bonds it makes with the central atome (transition metal) we are suppose to count the number of lone pair on this compound and it will give us the # of bound created?
Search found 29 matches
- Fri Dec 07, 2018 5:13 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: polydentate
- Replies: 2
- Views: 269
- Sun Dec 02, 2018 12:58 pm
- Forum: Naming
- Topic: re: Bond Length and Resonance
- Replies: 2
- Views: 329
re: Bond Length and Resonance
Which are the ligands name that we are requiered to know for the final? Are they the one listed in the manual (7th => p724) or will we be given a chart with these common ligands name?
- Sun Dec 02, 2018 12:56 pm
- Forum: Naming
- Topic: alphabetical order/ charge
- Replies: 2
- Views: 324
alphabetical order/ charge
When we name the ligand part of the compound, should we start by naming the anion in alphabetical order and then name the neutral compound in alphabetical order or should we name all of the ligands in alphabetical order without consider their charge?
- Sat Dec 01, 2018 11:54 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Polydentate ligands
- Replies: 3
- Views: 288
Polydentate ligands
How can we determine if a ligand is polydentate when naming a coordination compound?
- Sat Dec 01, 2018 11:53 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Coordination number
- Replies: 1
- Views: 179
Coordination number
Are polydentate ligand consider as one ligand or the number of bound they form with the TM in the coordination number?
- Mon Nov 26, 2018 2:00 pm
- Forum: Hybridization
- Topic: Lone pair
- Replies: 4
- Views: 407
Lone pair
Should we consider lone pair as sigma or pi bond when we do hybridization?
For example if an central atom is linked with 3 atoms (sigma bond) and 1lone pair is it s1p3 or s1p2 hybridization?
Thank you very much!
For example if an central atom is linked with 3 atoms (sigma bond) and 1lone pair is it s1p3 or s1p2 hybridization?
Thank you very much!
- Mon Nov 26, 2018 9:16 am
- Forum: Hybridization
- Topic: Sigma and pi bond
- Replies: 2
- Views: 301
Sigma and pi bond
Hi,
I was wondering how we were suppose to work with resonnance structure to determine sigma and pi bond?
Do we count 2pi bond, 2 sigma bond or one of each?
Thank you very much!
I was wondering how we were suppose to work with resonnance structure to determine sigma and pi bond?
Do we count 2pi bond, 2 sigma bond or one of each?
Thank you very much!
- Sun Nov 25, 2018 1:08 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal charge vs octet rule
- Replies: 5
- Views: 761
Formal charge vs octet rule
Hi,
Is it more important to fullfill the octet rule or to have the most stable molecule possible?
Thank you
Is it more important to fullfill the octet rule or to have the most stable molecule possible?
Thank you
- Sat Nov 24, 2018 8:48 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar/apolar
- Replies: 1
- Views: 301
Polar/apolar
When you have a molecule such as CH4, is it considered as polar or apolar?
Does the 4H atoms dipole moment around the C atom cancel themselves?
Thank you very much!
Does the 4H atoms dipole moment around the C atom cancel themselves?
Thank you very much!
- Fri Nov 23, 2018 11:57 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR RULE 3
- Replies: 4
- Views: 443
VSEPR RULE 3
Hi,
I don't understand why single and multiple bond are considered the same as they have different electon "concentration", why aren't double bond more repulsive than single bond?
Thank you very much
I don't understand why single and multiple bond are considered the same as they have different electon "concentration", why aren't double bond more repulsive than single bond?
Thank you very much
- Sun Nov 11, 2018 7:54 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Length and Resonance
- Replies: 5
- Views: 1678
Re: Bond Length and Resonance
Hi you should checkout this website (it explains everything really clearly, i usually go there when i'm looking for further info) I'm going to quote the important part of this article for your question: https://chem.libretexts.org/Textbook_Maps/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supple...
- Sun Nov 11, 2018 7:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Peer learning session/office hours
- Replies: 1
- Views: 1056
Peer learning session/office hours
Hi,
I was wondering if the peer learning session and office hours are maintain this monday and at the beggining of thanksgiving week?
Thank you!
I was wondering if the peer learning session and office hours are maintain this monday and at the beggining of thanksgiving week?
Thank you!
- Sun Nov 11, 2018 7:43 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Thanksgiving Wednesday
- Replies: 9
- Views: 850
Re: Thanksgiving Wednesday
If we have a chem discussion that day will it be canceled too? For all of my other classes, the discussions/labs have been canceled because half of the class would miss the discussion hours at the end of the week. I still think that you should email your TA to know about this since for chem the dis...
- Sun Nov 04, 2018 11:51 am
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron configuration when 4s and 3d
- Replies: 3
- Views: 410
Electron configuration when 4s and 3d
Hi,
I'm still really confused about how we should represent atoms that have either 3d or 4s shell.
Should we fill the 4s first and then then 3d? (4s^2, 3d^10) Or should we fill 3d before 4s? (3d^10,4s^2).
Thank you very much!
I'm still really confused about how we should represent atoms that have either 3d or 4s shell.
Should we fill the 4s first and then then 3d? (4s^2, 3d^10) Or should we fill 3d before 4s? (3d^10,4s^2).
Thank you very much!
- Sun Nov 04, 2018 11:41 am
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty principle question
- Replies: 2
- Views: 472
Uncertainty principle question
Hi!
When a question is asked with "the speed is 345m/s +/- 0.4,
Is the uncertainty in speed 0.4m/s or 0.8m/s?
Thank you very much!
When a question is asked with "the speed is 345m/s +/- 0.4,
Is the uncertainty in speed 0.4m/s or 0.8m/s?
Thank you very much!
- Tue Oct 30, 2018 2:55 pm
- Forum: Resonance Structures
- Topic: Resonance hybrid
- Replies: 2
- Views: 236
Resonance hybrid
Hi,
I was wondering if we were supposed to represent the lewis structure differently when there is a resonance.
Are we supposed to reprend each possibility, show the electron movement with arrow or draw half/ third bond (depending on the molecule)
Thank you very much!
I was wondering if we were supposed to represent the lewis structure differently when there is a resonance.
Are we supposed to reprend each possibility, show the electron movement with arrow or draw half/ third bond (depending on the molecule)
Thank you very much!
- Sun Oct 28, 2018 3:21 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: 3d and 4d
- Replies: 1
- Views: 273
3d and 4d
Hi!
I was wondering why "after 4s state orbital occupied and e- enter 3d state, then 3d state is lower in energy than 4s".
Thank you very much!
I was wondering why "after 4s state orbital occupied and e- enter 3d state, then 3d state is lower in energy than 4s".
Thank you very much!
- Sun Oct 28, 2018 3:19 pm
- Forum: Trends in The Periodic Table
- Topic: E- affinity and electronegativity [ENDORSED]
- Replies: 1
- Views: 323
E- affinity and electronegativity [ENDORSED]
Hi,
I was wondering what is the link between e- affinity and electronegativity?
Thank you very much!
I was wondering what is the link between e- affinity and electronegativity?
Thank you very much!
- Sun Oct 28, 2018 3:16 pm
- Forum: *Shrodinger Equation
- Topic: Shrodinger equation explanation
- Replies: 1
- Views: 474
Shrodinger equation explanation
Hi, I was wondering if anyone could explain me how we are supposed to use the shrodinger equation? On the syllabus it is written that we are supposed to understand : "the relationship between Schrodinger's equation (H ψ = E ψ), wave functions, and orbitals." Beside the fact that ᴪ^2 repres...
- Tue Oct 23, 2018 3:39 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: orbital position
- Replies: 2
- Views: 352
orbital position
Hi,
I was wondering how we could determine the orbital position along the axis with the ml number.
Thank you very much!
I was wondering how we could determine the orbital position along the axis with the ml number.
Thank you very much!
- Sat Oct 20, 2018 9:16 pm
- Forum: Administrative Questions and Class Announcements
- Topic: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
- Replies: 135
- Views: 38509
Re: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
Hi!
I was wondering if we should sign up for the peer session as i wanted to attend you session tomorrow,
Thank you very much!
I was wondering if we should sign up for the peer session as i wanted to attend you session tomorrow,
Thank you very much!
- Sat Oct 20, 2018 9:06 pm
- Forum: Properties of Light
- Topic: Do I have to memorize the spectrum?
- Replies: 20
- Views: 1584
Re: Do I have to memorize the spectrum?
During my discussion, the TA said that we should have the information required to find the n level. If you have done the A15 exercise in the book though, they says that the wavelenght studied is from the UV spectrum and this should be enought for you to state that it's from the lyman serie with n = 1
- Sat Oct 20, 2018 9:01 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Required knowledge for test/midterm [ENDORSED]
- Replies: 17
- Views: 1344
Re: Required knowledge for test/midterm [ENDORSED]
Im pretty sure this second test will pretty much cover the entire Quantum world unit we've been doing aka the majority if the video modules Pr. Lavelle said that we had to study the content until this friday lecture in class. I meant what are the formula and constants that were required to know. Ac...
- Sat Oct 13, 2018 8:19 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Writing in Pen
- Replies: 13
- Views: 969
Re: Writing in Pen
Hi,
I asked this question to my TA on friday before TEST1 and she said that it's fine to write with a pencil as long as you can clearly read the answer.
It might depend on the person who correct the paper so i think that you should ask this question before taking the test.
I hope this will help!:)
I asked this question to my TA on friday before TEST1 and she said that it's fine to write with a pencil as long as you can clearly read the answer.
It might depend on the person who correct the paper so i think that you should ask this question before taking the test.
I hope this will help!:)
- Sat Oct 13, 2018 8:13 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Exercise A15
- Replies: 1
- Views: 127
Exercise A15
Hi, I've worked on this exercise but i'm not sure that my way to approach the problem is the correct one. "In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6nm. Determine the values of n for the initial and final energy levels of e- during the emission of energy that le...
- Sat Oct 13, 2018 3:04 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Required knowledge for test/midterm [ENDORSED]
- Replies: 17
- Views: 1344
Required knowledge for test/midterm [ENDORSED]
Hi,
I wanted to know what is the requiered knowledge of formula/value for test on the Quantum chapter.
For example, is it requiered to know:
- the conversion from electrovolt to jouls
- the plank constant
- the mass of an electron
- the speed of light
...
Thank you very much
I wanted to know what is the requiered knowledge of formula/value for test on the Quantum chapter.
For example, is it requiered to know:
- the conversion from electrovolt to jouls
- the plank constant
- the mass of an electron
- the speed of light
...
Thank you very much
- Sat Oct 06, 2018 9:17 am
- Forum: SI Units, Unit Conversions
- Topic: How does grading for discussion posts work?
- Replies: 80
- Views: 8194
Re: How does grading for discussion posts work?
Hi, i am having trouble to post on the forum.
I'm able to respond any post but i don't know how to create an actual question post.
Can anyone help me with that?
Thank you!
I'm able to respond any post but i don't know how to create an actual question post.
Can anyone help me with that?
Thank you!
- Sat Oct 06, 2018 9:08 am
- Forum: Molarity, Solutions, Dilutions
- Topic: post assessment
- Replies: 1
- Views: 167
Re: post assessment
This is a dilution problem, typicaly you have to use the following equality: C1.V1 = C2.V2 Here you have: C1 = 0.0380 = 3.80 x 10^-2 V1 = Unknown C2 = 1.50 x 10^-3 V2 = 250mL = 0.25 x 10^-3L You have 1 value that is unknown so you just transform the equality so that you end up with V1 = (C2.V2)/C1 a...
- Sat Oct 06, 2018 9:02 am
- Forum: Empirical & Molecular Formulas
- Topic: Question L.39, Reaction Stoichiometry
- Replies: 1
- Views: 158
Re: Question L.39, Reaction Stoichiometry
In this problem, you want to figure out the ratio (the empirical formula) between quantity (in mole) of Oxygen (O) and tin (Sn) in the oxide of tin. The step for this kind of problem are the following: - calculate the mass of each component: m (Sn) = 1.50g m (O) = 28.35g - (26.45 + 1.50 = 27.95 => m...