I get that lewis acids are electron acceptors and lewis bases are electron donors but say you had an ion such as F-
Would F- be a lewis acid or a lewis base? Because it has a full octet id assume lewis base but i’m not sure
Search found 34 matches
- Sun Dec 09, 2018 9:49 am
- Forum: Lewis Acids & Bases
- Topic: Identifying Acids and Bases
- Replies: 5
- Views: 707
- Sun Dec 09, 2018 9:41 am
- Forum: Conjugate Acids & Bases
- Topic: Stability of Conjugate Base
- Replies: 6
- Views: 3716
Re: Stability of Conjugate Base
How can you tell base when a base is stable?
- Sat Dec 08, 2018 5:01 pm
- Forum: Lewis Acids & Bases
- Topic: Acids & Bases we need to memorize
- Replies: 1
- Views: 223
Acids & Bases we need to memorize
Does anyone know the strong acids and bases / weak acids and bases we should have memorized? If you could provide a list that’d be awesome
- Wed Dec 05, 2018 2:24 pm
- Forum: Bronsted Acids & Bases
- Topic: Withdrawing e- density
- Replies: 1
- Views: 275
Withdrawing e- density
Can someone explain to me what withdrawing electron density is? What exactly does that mean?
I know it has something to do with EN
I know it has something to do with EN
- Sun Dec 02, 2018 8:40 pm
- Forum: Naming
- Topic: Latin prefixes
- Replies: 3
- Views: 412
Latin prefixes
Do we need to know how to name ions based on their Latin root for naming the compound?
For instance, that Fe (II) and Fe (III) are ferrous and ferric?
For instance, that Fe (II) and Fe (III) are ferrous and ferric?
- Sun Dec 02, 2018 8:39 pm
- Forum: Naming
- Topic: Naming Question
- Replies: 5
- Views: 708
Naming Question
For the coordination compound [FeCl(OH2)5]+
What would the charge be of Fe? Can someone please also explain the charge of each atom or molecule?
What would the charge be of Fe? Can someone please also explain the charge of each atom or molecule?
- Sun Dec 02, 2018 3:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
- Replies: 135
- Views: 38415
Re: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
Is there no worksheet 8 for this weeks workshop?
- Sun Dec 02, 2018 3:42 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: How to determine coordination number
- Replies: 3
- Views: 325
How to determine coordination number
Is the coordination number equivalent to the number of ligands attached to the central metal atom?
- Tue Nov 27, 2018 2:36 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: maximizing dipole interactions
- Replies: 1
- Views: 254
maximizing dipole interactions
Why does positioning dipoles with oppositely charged closest to each other maximize dipole interactions ?
- Tue Nov 27, 2018 12:33 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: 3F.1 (Seventh Edition)
- Replies: 2
- Views: 280
3F.1 (Seventh Edition)
Can someone walk me through how you would answer this question:
"Identify the types of attractive intermolecular interactions that might arise between molecules of NH2OH"
"Identify the types of attractive intermolecular interactions that might arise between molecules of NH2OH"
- Sun Nov 25, 2018 2:27 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: Distinguishing between the different intermolecular forces
- Replies: 9
- Views: 814
Re: Distinguishing between the different intermolecular forces
Is this somewhere in the textbook?
- Sun Nov 25, 2018 10:43 am
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Distinguishing between the different intermolecular forces
- Replies: 9
- Views: 814
Distinguishing between the different intermolecular forces
How do you know which intermolecular forces are present in a molecule?
I know that the London forces are present in every molecule, but how do you determine which other forces are present? Is it by the amount of energy in a given molecule?
I know that the London forces are present in every molecule, but how do you determine which other forces are present? Is it by the amount of energy in a given molecule?
- Sun Nov 25, 2018 10:42 am
- Forum: Lewis Structures
- Topic: Exceptions to the Octet Rule
- Replies: 5
- Views: 505
Exceptions to the Octet Rule
What are the exceptions to the Octet rule that we need to be aware of?
- Sun Nov 25, 2018 10:41 am
- Forum: Dipole Moments
- Topic: What are dipole moments used for?
- Replies: 3
- Views: 372
What are dipole moments used for?
What do dipole moments tell you about a molecule and what are they used for?
From what I gathered, dipole movements distinguish the type of intermolecular forces between atoms. These intermolecular forces are then used to determine the phase of a molecule.
Is this correct?
From what I gathered, dipole movements distinguish the type of intermolecular forces between atoms. These intermolecular forces are then used to determine the phase of a molecule.
Is this correct?
- Thu Nov 15, 2018 5:15 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Double Bonds in VSEPR
- Replies: 5
- Views: 422
Re: Double Bonds in VSEPR
When using the VSEPR model, you want to take into account regions of electron density. So if you have 4 atoms surrounding a central atom and one of the atoms has a double bond you would still have 4 regions of electron density, not 5.
- Thu Nov 15, 2018 5:13 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: Polar and Dipole
- Replies: 3
- Views: 242
Re: Polar and Dipole
Can someone please explain what polar power is? How does it differ between anions and cations?
- Thu Nov 15, 2018 5:12 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: Hydrogen Bonding
- Replies: 5
- Views: 523
Hydrogen Bonding
Could someone give me an overview of what hydrogen bonding is and when it is used? I can't find a section on it in the textbook and I am a bit lost
- Tue Nov 13, 2018 1:01 pm
- Forum: Administrative Questions and Class Announcements
- Topic: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
- Replies: 135
- Views: 38415
Re: DOWNLOAD SESSION WORKSHEETS HERE - Sundays 4-6pm (Karen) [ENDORSED]
Thank you again! These are always so helpful. When will you be posting the answer key to worksheet 6?
- Sun Nov 11, 2018 8:18 pm
- Forum: Ionic & Covalent Bonds
- Topic: Bond Strength
- Replies: 2
- Views: 375
Bond Strength
Why do lone pairs on neighboring atoms weaken the bond between them?
Do lone pairs push the atoms farther apart?
Do lone pairs push the atoms farther apart?
- Sun Nov 11, 2018 12:49 pm
- Forum: Ionic & Covalent Bonds
- Topic: Determining ionic character vs covalent
- Replies: 3
- Views: 396
Determining ionic character vs covalent
To calculate the difference in electro negativity such as PCl3 would you simply do (electronegativity of P) - (electronegstivity of Cl) or would you do (electronegativity of P) - (3 x electronegstivity of Cl)
- Sun Nov 11, 2018 8:43 am
- Forum: Dipole Moments
- Topic: Dipoles and Molarity
- Replies: 2
- Views: 410
Re: Dipoles and Molarity
polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.
When a molecule has no dipoles, it is nonpolar. Conversely, when a molecule has dipoles it is polar.
When a molecule has no dipoles, it is nonpolar. Conversely, when a molecule has dipoles it is polar.
- Sun Nov 04, 2018 12:38 pm
- Forum: Lewis Structures
- Topic: Identifying the central atom in ONF
- Replies: 3
- Views: 523
Identifying the central atom in ONF
How would you determine the central atom in a molecule such as ONF?
Because oxygen has the lowest ionization energy wouldn’t it be oxygen not nitrogen? Why is the central atom N?
Because oxygen has the lowest ionization energy wouldn’t it be oxygen not nitrogen? Why is the central atom N?
- Sat Nov 03, 2018 1:39 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Ground state
- Replies: 2
- Views: 280
Ground state
How can you tell when an ion has a lower electron configuration than the neutral atom and vice versa? My question comes up after I did 2A.5 “Give the ground stage electron configuration expected for each of the following ions: Cu+, Bi3+, Ga3+, and TI3+ At first i thought I simply had to write the el...
- Thu Nov 01, 2018 9:12 pm
- Forum: Electronegativity
- Topic: What are the trends useful for?
- Replies: 12
- Views: 909
What are the trends useful for?
When would you use the IE, EN, EA, and AR trends?
- Thu Nov 01, 2018 9:11 pm
- Forum: Electronegativity
- Topic: Trends in EN and IE
- Replies: 1
- Views: 215
Trends in EN and IE
Why is it that ionization energy increases from left to right? I know it has something to do with more attraction pulling the electrons toward the interior, but I would like a more thorough understanding.
Why does EN energy increase from left to right?
Why does EN energy increase from left to right?
- Thu Nov 01, 2018 9:08 pm
- Forum: Lewis Structures
- Topic: d orbitals in valence shell that accommodate additional e-
- Replies: 2
- Views: 154
d orbitals in valence shell that accommodate additional e-
In class Wednesday Dr. Lavelle mentioned that atoms in period 3 or higher have d-orbitals in valence shell that accommodate additional e- and used PCl5 as an example. Can someone explain why and what he meant by this? It kind of went over my head in class.
- Wed Oct 24, 2018 2:04 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Online Modules
- Replies: 4
- Views: 320
Online Modules
Does anyone know if Dr. Lavelle will be posting online modules for chapter 2?
- Mon Oct 22, 2018 1:23 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Atomic Spectra Module 41
- Replies: 1
- Views: 136
Atomic Spectra Module 41
For the hydrogen atom which statement is true? A) The transition from n=5 to n=3 involves greater energy than one from n=4 to n=2 B) The transition from n=4 emits radiation of longer wavelength than the transition from n=5 to n=1 C) All transitions from states for which n > 1 to the n=1 involve the ...
- Sun Oct 21, 2018 9:25 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Difference between ground and excited state of electrons
- Replies: 4
- Views: 345
Difference between ground and excited state of electrons
How can you tell the difference between ground state and excited state?
- Sun Oct 21, 2018 9:21 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Zeffe type of questions
- Replies: 1
- Views: 140
Zeffe type of questions
Do we need to know how to solve problems asking about the effective nuclear charge? If so, what is Zeffe?
- Thu Oct 11, 2018 8:04 pm
- Forum: Properties of Electrons
- Topic: Emission vs Absorption
- Replies: 4
- Views: 368
Emission vs Absorption
When an atom absorbs a specific wavelength does that mean that an electron moves from a higher energy state to ground state
or is it that when an atom absorbs a specific wavelength they move from ground state to a higher energy state?
or is it that when an atom absorbs a specific wavelength they move from ground state to a higher energy state?
- Thu Oct 11, 2018 1:12 pm
- Forum: Photoelectric Effect
- Topic: Photoelectric effect Module 32
- Replies: 1
- Views: 145
Photoelectric effect Module 32
32. Molybdenum metal must absorb radiation with a minimum frequency of 1.09 x 1015 s-1 before it can emit an electron from its surface. Answer the following two questions. What is the minimum energy needed to produce this effect? Is the wording of this questioning indicate that you need to find the ...
- Thu Oct 11, 2018 1:09 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Bohr frequency condition
- Replies: 2
- Views: 2657
Re: Bohr frequency condition
Bohr's frequency condition is delta E=hv, meaning the difference in energy (when a high energy e- drops to a lower energy e- level) is equal to Planck's constant x frequency.
- Tue Oct 09, 2018 2:33 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: E29 Part D
- Replies: 2
- Views: 310
E29 Part D
A chemist measured out 8.61 g of copper (II) chloride tetrahydrate CuCl2 4H20 (d) What fraction of the total mass of the sample is due to oxygen? What would be the proper conversion to find the fraction of the mass due to oxygen in the total sample? I tried 8.61g CuCl2 4H20 / 206.45 x 1m/4m x 16g bu...