Search found 15 matches
- Thu Dec 07, 2017 5:31 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: 12.23 [ENDORSED]
- Replies: 7
- Views: 1201
Re: 12.23 [ENDORSED]
Why is Kw=x^2? Doesn't that imply that H3O and OH are the same value? And if so, then how are we supposed to know that?
- Thu Dec 07, 2017 4:50 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: 12.19
- Replies: 1
- Views: 363
12.19
For this question, in the solutions manual [HCl]0 is listed, but what does that represent? Is that the initial value? And if so, what is that value?
- Thu Dec 07, 2017 4:43 pm
- Forum: Amphoteric Compounds
- Topic: Acidic, basic, or amphoteric? [ENDORSED]
- Replies: 4
- Views: 1967
Re: Acidic, basic, or amphoteric? [ENDORSED]
Where exactly is the line that separates metals from nonmetals? And which elements from the d-block elements form amphoteric molecules?
- Sun Dec 03, 2017 2:59 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Dipole Moments
- Replies: 2
- Views: 388
Dipole Moments
How do you find if a dipole moment is stronger than another? I understand that dipole moments are determined based on electronegativity, but not the stronger and weaker part.
Naming
When naming structures, there are times when you must use different prefixes such as bis. When do we use these instead of the regular ones?
- Wed Nov 22, 2017 3:49 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: T-shaped and Trigonal Pyramidal
- Replies: 6
- Views: 817
T-shaped and Trigonal Pyramidal
Since both of these structures have 4 atoms, how do you determine if it is t-shaped or trigonal pyramidal?
- Wed Nov 22, 2017 3:45 pm
- Forum: Hybridization
- Topic: Pi Bonds vs. Sigma Bonds
- Replies: 7
- Views: 1052
Pi Bonds vs. Sigma Bonds
When looking at molecule, how do you determine if it forms a pi bond, sigma bond, or neither?
- Tue Nov 07, 2017 9:48 pm
- Forum: Ionic & Covalent Bonds
- Topic: 3.25
- Replies: 3
- Views: 541
3.25
How do you determine the charges on the atoms to determine the chemical formula?
- Tue Nov 07, 2017 8:39 pm
- Forum: Ionic & Covalent Bonds
- Topic: 3.11
- Replies: 3
- Views: 1252
3.11
Why, for part A, does [Ar]3d6 cause the answer to be Co3+? Same for part B with Fe3+? On 3.9 when we had 3d6, the answer involved Fe, but on this one 3d6 involved Co. I'm confused as to why this is.
- Wed Nov 01, 2017 11:27 pm
- Forum: *Shrodinger Equation
- Topic: What do I need to know
- Replies: 1
- Views: 487
What do I need to know
For Shrodinger's equation, how in depth do I need to know it? I understand how it relates to wave function and orbitals, but do I need to go beyond that?
- Wed Nov 01, 2017 10:02 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: 2.37
- Replies: 1
- Views: 327
2.37
For part A, how do we know that this is false? What is Zeff?
- Thu Oct 26, 2017 12:25 am
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: 2.1
- Replies: 2
- Views: 432
2.1
Can someone explain how to find the answers for this one.
- Wed Oct 25, 2017 8:34 pm
- Forum: General Science Questions
- Topic: Problems
- Replies: 1
- Views: 594
Problems
Which chapter are the problems from for this weeks assignment?
- Tue Oct 17, 2017 12:20 am
- Forum: Properties of Light
- Topic: Homework 1.11
- Replies: 2
- Views: 387
Homework 1.11
I know that the commonality is the lower energy level, but how do we determine the lower energy level? I'm confused on how to determine the levels for each line.
- Sun Oct 15, 2017 2:25 pm
- Forum: Properties of Light
- Topic: 1.3
- Replies: 5
- Views: 798
Re: 1.3
For choice A, is the speed of the radiation a constant and that is how you know it cannot decrease? Or is there a way to determine the speed of the radiation? I understand why B and D are incorrect, but not sure about A. Also, I don't understand option C as well.