Search found 14 matches
- Fri Dec 08, 2017 4:52 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Example 12.7
- Replies: 1
- Views: 322
Example 12.7
In example 12.7 of the text, why is the "-x" eliminated from the denominator of the expression for Ka? Does this portion of the equation not affect the result?
- Fri Dec 08, 2017 4:39 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Percentage deprotonation
- Replies: 2
- Views: 498
Percentage deprotonation
Why is it that when calculating percentage deprotonation we can substitute [H30+] with [A-]?
- Fri Dec 08, 2017 4:19 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: number of oxygen atoms effect on acidity
- Replies: 1
- Views: 792
number of oxygen atoms effect on acidity
Why is it that acids are stronger when there is a greater number of oxygen atoms attached to a central atom? What does this have to do with the concept of oxoacids?
- Fri Dec 08, 2017 12:45 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: pKw
- Replies: 1
- Views: 5354
pKw
What is pKw used to calculate? I know that it can be found by multiplying the concentrations of hydronium and hydroxide ions, but I am wondering what this calculation in used for and what it really tells us about a solution.
- Fri Dec 08, 2017 1:50 am
- Forum: Bronsted Acids & Bases
- Topic: Bronsted Acids and Bases versus Lewis Acids and Bases
- Replies: 3
- Views: 751
Re: Bronsted Acids and Bases versus Lewis Acids and Bases
The Lewis definition of a base is broader than the Bronsted definition. Although every Bronsted base is a Lewis base, not every Lewis base is a Bronsted base. Carbon monoxide is a Lewis base, but it is not a Bronsted base because it does not accept protons.
- Wed Dec 06, 2017 10:05 am
- Forum: Hybridization
- Topic: Figure 4.31 [ENDORSED]
- Replies: 1
- Views: 277
Figure 4.31 [ENDORSED]
Can someone please explain figure 4.31, the molecular orbital energy-level diagram for homonuclear diatomic molecules? I don't understand which energy level you would go to after sigma 2s*, sigma 2p or pi 2p.
- Wed Dec 06, 2017 12:22 am
- Forum: Hybridization
- Topic: how to determine hybridization
- Replies: 4
- Views: 698
how to determine hybridization
Is hybridization completely determined by molecular shape (VSEPR)? If not, what role, if any, do the individual atom's electron configurations play?
- Tue Dec 05, 2017 11:51 pm
- Forum: Hybridization
- Topic: sp2 hybridization
- Replies: 5
- Views: 851
sp2 hybridization
Can someone please explain why BF3 is sp2 hybridized? I don't understand how boron, having the electron configuration of [He] 2s2 2p1, and flourine, with the electron configuration [He] 2s2 2p5, mix one s-orbital with two p-orbitals to produce three sp2 hybrid orbitals.
- Tue Dec 05, 2017 11:22 pm
- Forum: Hybridization
- Topic: sp3 hybridization
- Replies: 6
- Views: 1169
sp3 hybridization
The book says that whenever an atom in a molecule has a tetrahedral electron arrangement, it is sp3 hybridized. How do lone pairs affect this hybridization? For example would a molecule with the trigonal planar or seesaw shape also be sp3 hybridized?
- Sun Oct 22, 2017 11:59 pm
- Forum: Properties of Light
- Topic: Coulomb” potential
- Replies: 2
- Views: 501
Coulomb” potential
Can someone explain the equation for Coulomb” potential energy?
- Sun Oct 22, 2017 11:56 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Born Interpretation
- Replies: 1
- Views: 279
Born Interpretation
Is there a way of knowing the probability that a particle will be found in a certain region without knowing the probability density or the volume? If asked a question about the born interpretation, would you always have two out of the three variables?
- Sun Oct 22, 2017 11:48 pm
- Forum: Properties of Light
- Topic: The uncertainty principle [ENDORSED]
- Replies: 5
- Views: 830
The uncertainty principle [ENDORSED]
If all matter has wave like properties, why does the uncertainty principle only apply to subatomic particles?
- Sun Oct 22, 2017 11:44 pm
- Forum: Properties of Light
- Topic: Is strength/energy of a light determined by amplitude?
- Replies: 1
- Views: 336
Is strength/energy of a light determined by amplitude?
If the amplitude of a wave were to be enhanced by constructive interference would this make the light stronger or brighter? I know that the energy of light is determined by planks constant times the frequency. So does that mean that the energy and the amplitude of a wave are not related? Thanks in a...
- Thu Oct 05, 2017 7:50 pm
- Forum: Limiting Reactant Calculations
- Topic: After determining the limiting reactant, how do you find the mass of a product?
- Replies: 2
- Views: 444
After determining the limiting reactant, how do you find the mass of a product?
EX. from module 3: 21. According to the following equation, 0.750 g of C6H9Cl3 is mixed with 1.000 kg of AgNO3 in a flask of water. A white solid, AgCl, completely precipitates out. What is the mass of AgCl produced? C6H9Cl3 + 3AgNO3 ---> AgCl + C6H9(NO3)3. Molar Mass: C6H9Cl3 (187.50 g/mol), 3AgNO3...