Search found 13 matches

by Ning_Yao_1B
Sat Dec 03, 2016 8:27 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Dissociation energy and Molecular orbital energy level diagram
Replies: 1
Views: 949

Dissociation energy and Molecular orbital energy level diagram

Can we know the relative dissociation energy by comparing at different molecules' molecular orbital energy level diagram?
by Ning_Yao_1B
Mon Nov 28, 2016 10:38 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Electron-donating properties
Replies: 1
Views: 300

Electron-donating properties

I do not understand why CH3 has electron donating properties which make acetic acid a weaker acid than formic acid.
by Ning_Yao_1B
Sun Nov 27, 2016 2:10 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: HW 11-117
Replies: 1
Views: 326

HW 11-117

Can anyone explain what does the solution manual mean for 11-117 (f)? "Because water is a liquid, it is by definition present at unit concentration, so changing the amount of water will not affect the reaction. As long as the glucose solution is dilute, its concentration can be considered uncha...
by Ning_Yao_1B
Mon Nov 14, 2016 10:24 am
Forum: Naming
Topic: Negative charge
Replies: 1
Views: 259

Re: Negative charge

Iron --> Ferrate
Copper --> Cuprate
by Ning_Yao_1B
Sat Nov 12, 2016 5:51 pm
Forum: Naming
Topic: HW 17.33
Replies: 1
Views: 344

Re: HW 17.33

CO32- can be both monodentate and bidentate because of its resonance structure.
When it is monodentate, it will have two double bonds and one single bond.
When it is bidentate, it will have a single bond and one double bond shared by two c-o bonds.
by Ning_Yao_1B
Sat Nov 12, 2016 5:35 pm
Forum: Naming
Topic: 17.35
Replies: 2
Views: 486

Re: 17.35

Usually two carbons make an ideal spacing to form a chelate structure.
That's why only (b) works for there are two carbons in between NH3
by Ning_Yao_1B
Sat Oct 29, 2016 4:02 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Determine polarization
Replies: 1
Views: 307

Determine polarization

How to determine if C5H5N is polar or non polar?
by Ning_Yao_1B
Sat Oct 29, 2016 4:00 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Chapter 4 Question #13 part b
Replies: 1
Views: 338

Re: Chapter 4 Question #13 part b

109.5 degree in this case is just an approximation. The angle will change corresponding to different atoms.
by Ning_Yao_1B
Sat Oct 29, 2016 3:54 pm
Forum: Hybridization
Topic: s-character
Replies: 1
Views: 277

s-character

What is s-character, p-character, and what is the effect if s-character or p-character increase/ decrease?
by Ning_Yao_1B
Sat Oct 22, 2016 10:24 am
Forum: Electronegativity
Topic: HW 3.59
Replies: 2
Views: 373

HW 3.59

The question is to draw the Lewis structure of ClO.
I know it is a radical because the sum of valence electron is 13, an odd number.
However, if we are not given the electronegativity, how do we determine which atom should have the lone electron?
by Ning_Yao_1B
Sun Oct 09, 2016 5:07 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Duality of the electron
Replies: 2
Views: 682

Duality of the electron

How does Heisenberg's indeterminacy equation show the duality of the electron?
by Ning_Yao_1B
Sat Oct 08, 2016 1:52 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Nodes and Nodal Planes [ENDORSED]
Replies: 3
Views: 628

Re: Nodes and Nodal Planes [ENDORSED]

I have follow-up questions:
1) How to get the equation for finding the number of nodes?
2) How many nodes do 3p, 3d have? and how many nodes are there in an atom, such as a nitrogen?
by Ning_Yao_1B
Wed Sep 28, 2016 10:23 pm
Forum: Molarity, Solutions, Dilutions
Topic: Question on G25
Replies: 5
Views: 811

Re: Question on G25

I have a basic question for G25.
If diluting a solution does not change the moles/ molecules of solute in the solution, then why does the amount of X in this question will decrease?
Doesn't the moles/ number of molecules of X have to stay the same?

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