CHEMISTRY COMMUNITY

Moris 1H

Are we supposed to memorize the oxidation number of every ligand? For example, are we supposed to just know that CN has an oxidation number of -1?

Moris 1H

How do we memorize angles if sometimes the angle depends on that specific molecule's lone pair composition?

Moris 1H

Would we just need to distinguish between them for the final?

Moris 1H

How would you know BrO- completely ionizes in water?

Moris 1H

Everything but naming

Moris 1H

How would a question about a ligand be asked?

Moris 1H

What would an example be of a question related to this topic?

Moris 1H

How can we tell if one molecule's double bond is shorter than another molecule's double bond?

Moris 1H

How can we identify the VSEPR of a molecule from its Lewis structure?

Moris 1H

If the way we write an electron configuration for an atom has to be modified to draw the bonds we make, why don't we just use the hybridization electron configuration as the only model? Isn't having two inaccurate?

Moris 1H

Formal charge can identify the correct lewis structure when there are multiple options as you said. The one that doesn't break the octet rule (unless it has an expansion octet) and that has a formal charge closest to 0 or exactly 0 is the most stable structure.

Moris 1H

So what's the difference between a dipole and polar molecule? Isn't water also polar?

Moris 1H

What exactly are dipoles? What makes it different from a polar molecule like water? And what is an induced-dipole? Are there any trends we should know of concerning dipoles?

Moris 1H

So once you make a basic lewis structure you would have to calculate the formal charges of each atoms in the structure and rearrange electrons to get to 0?

Moris 1H

Why us calculating formal charge important for every Lewis Structure?

Moris 1H

How do you determine whether a lewis structure is depicting an ionic or covalent bond?

Moris 1H

Could someone help me with this question? It's about molarity and dilutions. I understand how to find the molarity of the solution but how do you find specific volumes to obtain specific moles? I don't really understand the concept behind it either. Question: A student prepared a solution of sodium ...

Moris 1H

Is there an answer key for test 1?

Moris 1H

Why is it that we can't know both position and momentum?

Moris 1H

As long as you know the three quantum numbers you can figure out which shells, subshells, and orbitals exist.

Moris 1H

Do we need to know this for the midterm?

Moris 1H

Thanks!

Moris 1H

No two electrons can have the exact same four quantum numbers.

Moris 1H

Like Mr. Lavelle said in class orbital aren't physical spaces that electrons occupy like hotel rooms. They are areas around the nucleus where probability of finding one is high. I'm just not sure how each orbital relate to each other like how s orbitals fit with p d and all the rest.

Moris 1H

Could someone define this concept for me please? I didn't understand It very well

Moris 1H

N4 to n1 must have a bigger drop

Moris 1H

How can something have momentum without mass? if mass is 0 wouldn't momentum also be 0?

Moris 1H

If this equation doesn't relate to light then what wavelength is it calculating?

Moris 1H

It helps with how we imagine everything. There's also something called the right-hand rule that shows the positioning of these fields relative to each other.

Moris 1H

Hello, I was wondering about how the electron, when returning from its excited state and down the energy levels following the absorption of light and I have a couple of questions. 1. Do the electrons physically absorb the photon or just its energy? 2. What are the effects of electrons emitting the ...

Moris 1H

I think there through previous experiments it was observed that electrons were emitted from various metals when different energy levels of beams pointed at it and so the photoelectric experiment was to identify why/how that happened. Eventually the discrete levels of energy were discovered.

Moris 1H

Are we supposed to include question from the Quantum world in Homework 2? We just covered the speed of light and electromagnetic spectrum so there are some questions from chapter 1 that I've never seen. Are these topics that we should know prior to chem 14a?

Moris 1H

The value they use in the textbook I believe is 3.00 x 10^8 but the value difference is so small I don't think it should affect your answer that much.

CHEMISTRY COMMUNITY

Search found 33 matches

Oxidation number

Re: Helpful Chart

Re: oxacids and carboxylic acids

Re: 12.49 Determining Base Strength

Re: Final

Re: Define Ligands?

Exam questions [ENDORSED]

Double bond

VSEPR and Lewis

Hybridization purpose

Re: Sulfate Lewis Structure

Re: Dipole relevance

Dipole relevance

Re: Formal charge purpose

Formal charge purpose

Ionic vs Covalent

Q. G5

Test 1

Concept

Re: Confusion about why there is no 1p, 1d, or 1f orbital? [ENDORSED]

Midterm?

Re: Schrodinger equation definition?

Re: Amount of Electrons [ENDORSED]

Re: The concept of Orbitals

Schrodinger equation definition?

Re: Energy levels

Re: equations that apply to light only/everything else but light

Re: Wavelength and De Broglie Equation [ENDORSED]

Re: Electromagnetic Field [ENDORSED]

Re: Atomic Spectra Electron Emission

Re: Original Photoelectric Experiment

Homework 2?

Re: HW 1.7 (speed of light) clarification