CHEMISTRY COMMUNITY

Patricia Capiral 3G

How can you determine whether or not you've drawn all the possible isomers for the molecule?

Patricia Capiral 3G

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!

Patricia Capiral 3G

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?

Patricia Capiral 3G

If we're given a set of Lewis structures, how do I determine the order of increasing acidity strength by looking at the structures?

Patricia Capiral 3G

How does one determine if an acid or base is polyprotic? Is there something in the molecular formula or structure that indicates that?

Patricia Capiral 3G

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?

Patricia Capiral 3G

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?

Patricia Capiral 3G

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...

Patricia Capiral 3G

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?

Patricia Capiral 3G

"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.

Patricia Capiral 3G

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....

CHEMISTRY COMMUNITY

Search found 11 matches

Drawing Constitutional and Geometric Isomers

Common Names

Single Headed vs. Double Headed Arrows

Strength of acids

Polyprotic Acids & Bases

2014 Quiz 3 Prep #9

Naming Complex Ions with Charges

MO Diagrams & Paramagnetism/Diamagnetism

Hybridization

Hydrogen Atom / Quantum Level

Re: Quiz #1 Practice Question