Search found 11 matches

by Patricia Capiral 3G
Tue Mar 01, 2016 5:52 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Drawing Constitutional and Geometric Isomers
Replies: 1
Views: 437

Drawing Constitutional and Geometric Isomers

How can you determine whether or not you've drawn all the possible isomers for the molecule?
by Patricia Capiral 3G
Sun Feb 28, 2016 4:05 pm
Forum: *Alkanes
Topic: Common Names
Replies: 4
Views: 704

Common Names

Can someone explain to me when the different prefixes are used when writing the common name? I'm a bit confused on how to determine whether it's iso-, neo-, tert-, and sec-. Thank you!
by Patricia Capiral 3G
Sat Feb 27, 2016 7:30 pm
Forum: *Alkanes
Topic: Single Headed vs. Double Headed Arrows
Replies: 2
Views: 468

Single Headed vs. Double Headed Arrows

I know that a single headed arrow means one electron is being transferred while a double headed arrow means two electrons. What are examples of when a single headed arrow is used? Is it a less common occurrence?
by Patricia Capiral 3G
Sat Dec 05, 2015 10:24 am
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Strength of acids
Replies: 6
Views: 841

Strength of acids

If we're given a set of Lewis structures, how do I determine the order of increasing acidity strength by looking at the structures?
by Patricia Capiral 3G
Sat Nov 21, 2015 11:54 pm
Forum: Polyprotic Acids & Bases
Topic: Polyprotic Acids & Bases
Replies: 1
Views: 389

Polyprotic Acids & Bases

How does one determine if an acid or base is polyprotic? Is there something in the molecular formula or structure that indicates that?
by Patricia Capiral 3G
Fri Nov 13, 2015 11:05 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 2014 Quiz 3 Prep #9
Replies: 1
Views: 226

2014 Quiz 3 Prep #9

For the following reaction at 523 K, with K=0.0736, the equilibrium concentrations are:
[PCl5]=0.110 M, [PCl3]=[Cl2]=0.0900 M. If suddenly 0.100 M PCl5(g), PCl3(g), Cl2(g) were added, what would happen?
Can someone explain why it is that more PCl5 is formed?
by Patricia Capiral 3G
Thu Nov 05, 2015 3:27 pm
Forum: Naming
Topic: Naming Complex Ions with Charges
Replies: 1
Views: 607

Naming Complex Ions with Charges

For naming complex ions, I understand that we have to add the suffix -ate to the transition metal if it has an overall negative charge. Is there a suffix we have to add for positive charges? Or will adding "ion" at the end indicate that it has a positive charge?
by Patricia Capiral 3G
Fri Oct 30, 2015 3:39 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: MO Diagrams & Paramagnetism/Diamagnetism
Replies: 1
Views: 387

MO Diagrams & Paramagnetism/Diamagnetism

When drawing M.O. diagrams, what determines whether or not it'll be symmetrical? I remember going over an example in class with CO but I don't remember why the 2s and 2p subshells for Oxygen are drawn lower. Also, is there a way to figure out whether an atom is paramagnetic or diamagnetic without dr...
by Patricia Capiral 3G
Fri Oct 23, 2015 6:59 pm
Forum: Hybridization
Topic: Hybridization
Replies: 1
Views: 314

Hybridization

After reviewing today's lecture, I am still a bit confused on hybridization. How would I figure out which sub-shells or orbitals are involved? Do I refer to the electron configuration of the element? Is there a "pattern" of some sort that you can imply from the periodic table?
by Patricia Capiral 3G
Sun Oct 11, 2015 7:31 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Hydrogen Atom / Quantum Level
Replies: 1
Views: 357

Hydrogen Atom / Quantum Level

"An excited hydrogen atom emits light with the frequency of 1.14 x 10^14 Hz to reach the energy level for which n=4. In what principal quantum level did the electron begin?"

How do I go about solving this problem? I am kind of confused on which equation(s) to use.
by Patricia Capiral 3G
Sun Oct 11, 2015 12:21 am
Forum: Empirical & Molecular Formulas
Topic: Quiz #1 Practice Question
Replies: 1
Views: 502

Re: Quiz #1 Practice Question

You can convert from grams to moles by multiplying 7.45 g H2O * (1 mol H2O / Molar mass of H2O) and then convert that into molecules by multiplying it with Avogadro's number. Or you can just convert from grams to molecules by solving 7.45 g H2O * (Avogadro's number / Molar mass H2O) since 1 mol = 6....

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