CHEMISTRY COMMUNITY

Debora Fernandez Clemente_ 4H

So does anyone have an idea what the scale may be for each letter grade since a 50% is a C-?

Debora Fernandez Clemente_ 4H

Do the cut-offs vary alot to the regular scale?

Debora Fernandez Clemente_ 4H

On the outline posted for Acid and Bases and Structures Properties, one of the focus says mentions Box 6E.1. Are we supposed to memorize these values?

Debora Fernandez Clemente_ 4H

what would be the net equation of this process?

Debora Fernandez Clemente_ 4H

what is the complete list of strong acids?

Debora Fernandez Clemente_ 4H

When naming coordination compounds when do use the first three suffix (-ate, -ide, -ite) and when do you use -o?
I would appreciate if there was example provided!

Debora Fernandez Clemente_ 4H

Has he announced any review sessions for the final?

Debora Fernandez Clemente_ 4H

When we are naming coordinate compounds are we supposed to memorize the chart that professor Lavelle has in the website?

Debora Fernandez Clemente_ 4H

can someone explain why water acts like bronsted acid and a base?

Debora Fernandez Clemente_ 4H

I am not sure by what it meant that when a ligand name is with DI-, TRI-, TETRA, or polydentate, we should have different prefixes such as bis, tris, tetrakis, and pentakis. Are there any examples with these prefixes?

Debora Fernandez Clemente_ 4H

How do you calculate the oxidation number of the metal in a complex?

Debora Fernandez Clemente_ 4H

Can a ligand be a whole compound attached to a TM?

Debora Fernandez Clemente_ 4H

Does anyone know if professor Lavelle has sent out the dates for reviews session for the final?

Debora Fernandez Clemente_ 4H

I know that watching videos might not always replace other study methods but I would recommend watching Professor Dave Explains on Youtube. This channel is very helpful, topics may be oversimplified sometimes but its a good start.

Debora Fernandez Clemente_ 4H

I find your story very interesting and inspiring but as I think more of my future I have become interested in Forensic pathology so I was wondering if you knew about any resources I look into so that I can get more involved and become more knowledgeable of the field?I would appreciate it if you did ...

Debora Fernandez Clemente_ 4H

Give yourself enough study time before the final, and therefore before the final just remember how much you studied for it. Taking deep breathes helps calm me down, get enough sleep and you will feel more confident before the final and after it.

Debora Fernandez Clemente_ 4H

There really is not a week to week schedule to follow, its better to look at the syllabus and study any material after 2D for the test, so basically anything after the midterm. This excludes hybridization

Debora Fernandez Clemente_ 4H

can anyone explain why professor Lavelle preferred to London dispersion force to be called Induced Dipole- Induced Dipole?

Debora Fernandez Clemente_ 4H

Victor James 4I wrote:VSPR info as in bond angles and the names of the formation?

yes I believe that is correct!

Debora Fernandez Clemente_ 4H

Are going to have to determine on whether a molecule is polar or not?

Debora Fernandez Clemente_ 4H

What are other topics other than the VSEPR models we should know for test two? or is only that?

Debora Fernandez Clemente_ 4H

what was the last topic we covered for the midterm?

Debora Fernandez Clemente_ 4H

If the dipole moments always point toward the more electronegative atom is this why the arrow drawn from positive to negative?

Debora Fernandez Clemente_ 4H

I am confused by what formal energy is? is that formal charge?

Debora Fernandez Clemente_ 4H

Is test 2 week 8?

Debora Fernandez Clemente_ 4H

Does this also apply for bonding in DNA?

Debora Fernandez Clemente_ 4H

I am still unsure of what covalent character means, can anyone explain?

Debora Fernandez Clemente_ 4H

When determining the most stable structure do you choose the Lewis structure with the least formal charges on each atom?

Debora Fernandez Clemente_ 4H

I believe the midterm is up everything up to section 2.D

Debora Fernandez Clemente_ 4H

I know understand what a coordinate covalent bond is but, how did you know what compound was a base or an acid?

Debora Fernandez Clemente_ 4H

how do you figure out how many resonance structures you should have for a compound?

Debora Fernandez Clemente_ 4H

In order to fin the Lewis structure of BF3 we need to know the valence electron of both Boron and Fluorine which is 3 and 7 valence electrons respectively (you can figure this out by using the periodic table). With this we know that all three F has only one unpaired electron which will bong with the...

Debora Fernandez Clemente_ 4H

Also does anyone know if Lavelle has posted any possible dates for the midterm review session?

Debora Fernandez Clemente_ 4H

Why does electron affinity increase as we go towards the noble gasses?

Debora Fernandez Clemente_ 4H

would the bond length vary when it is a double or triple bond?

Debora Fernandez Clemente_ 4H

why is the electronic configuration of Ag [Kr] 5s^1 4d^10 instead of [Kr] 5s^2 4d^9?

Debora Fernandez Clemente_ 4H

When we are asked to draw resonance structures are we supposed to calculate the average bond length?

Debora Fernandez Clemente_ 4H

They are regions around atomic nuclei where the likelihood of finding electrons is zero.

Debora Fernandez Clemente_ 4H

What is the partial full one you are referring to in these exceptions?

Debora Fernandez Clemente_ 4H

What is the difference between λ=h/p and c= λ*ν

Debora Fernandez Clemente_ 4H

Can someone explain why Lavelle preferred us to us this equation, (E = -hR/n^2), instead of Rydbergs equation?

Debora Fernandez Clemente_ 4H

Usually just use the constant they give in the equation sheet, which I believe is usually 6.626*10^-34 J*s. Rounding up sometimes can eventually lead your answer to be slightly off from the real answer, so it is better to be more precise with your constants.

Debora Fernandez Clemente_ 4H

Have you heard the one about a chemist who was reading a book about helium?

He just couldn’t put it down!

Debora Fernandez Clemente_ 4H

Can someone explain the difference between the De Broglie's and Heisenberg's equation?

Debora Fernandez Clemente_ 4H

A photon is a basic unit of light, when it hits a metal and meets the threshold, an electron will be emitted.

Debora Fernandez Clemente_ 4H

Enjoy!

Oxygen, hydrogen, sulfur, sodium, and phosphorous walk into a bar.

“OH SNaP!” says the bartender.

Debora Fernandez Clemente_ 4H

Does anyone know when we will be getting the first test back?

Debora Fernandez Clemente_ 4H

How can we figure out what type of light has a shorter/longer frequency? Is there a chart or acronym for this?

Debora Fernandez Clemente_ 4H

I undertand we have to round till the end so that we get more accurate numbers but, if there multiple parts to a problem, for example where you have to find moles, mass, etc, in the same problem, should i just write down exact numbers?

Debora Fernandez Clemente_ 4H

Can someone explain what was the significance of the Angstrom unit from lecture?

Debora Fernandez Clemente_ 4H

First you would have to convert 25.2 kg to grams, and then convert grams to moles.
Second use stoichiometry to find the amount of moles multiplied by 6 which will tell you the amount of F ions

25.2 kg * 1000g/1 kg* 1 mol UF6/Molar Mass UF6 * 6 mol F- ions/1 mol UF6

Debora Fernandez Clemente_ 4H

When balancing equations how do you determine what to balance first?

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