CHEMISTRY COMMUNITY

Phillip Tran

only for elementary steps

Phillip Tran

youll use 8.314 most of the time but whenver the units are L.atm then you use 8.206

Phillip Tran

the more complex a molecule is, the more entropy it has

Phillip Tran

you dont use products in the rate law but you have the right idea with the coefficients

Phillip Tran

yes you need to know

Phillip Tran

dG=-nFE
E is standard cell potential that needs to be positive so that dG could be negative, which is what we want for spontaneity

Phillip Tran

write it all out and cancel whatever you can. whats left is your units

Phillip Tran

Phillip Tran

yea from both. its not too bad

Phillip Tran

for activated complex, basically you have an electonegative atom break off from a molecule and another electronegative atom come to bond with the molecule. You use dotted lines to represent broken/formed bonds

Phillip Tran

course readers^

Phillip Tran

you do need dH of fusion

Phillip Tran

Just memorize the six we learned and you solid

Phillip Tran

dG=dH-TdS
keep dG negative to maintain spontaneity

Phillip Tran

technically anything at 100 C would cause a severe burn

Phillip Tran

dH=qp

Phillip Tran

I agree with kyle

Phillip Tran

catalysts are usually in the reactants of the first step and the products of the second step. Intermediates is the other way around

Phillip Tran

Dr. Lavelle

You da real mvp

Yours truly

Phillip Tran

Activated complex is the transition state of a reaction. Basically, an electronegative atom breaks off from a molecule and a nucleophile comes to take its place. In the transition state, you would use dotted lines to represent formed/broken bonds. This is what people refer to as the double dagger

Phillip Tran

si senor

Phillip Tran

do we need to know the born haber cycle?

Phillip Tran

when adding standard cell potentials, why do you need to convert standard cell potential to gibbs free energy and then convert back to standard cell potential instead of adding them straight up??

Phillip Tran

can anyone explain the difference between reversible and irreversible expansion? are there specific formulas for each conditions?

Phillip Tran

What is it called when Queen of England farts?

A noble gas

Phillip Tran

Why did the acid go to the gym?

To become a buffer solution!

Phillip Tran

How do Sulfur and Oxygen communicate?

a sulfone

Phillip Tran

what did one cell say to his sister cell that stepped on his toe?

mitosis

Phillip Tran

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."

Phillip Tran

what do you call a wheel made of iron?

a ferrous wheel

Phillip Tran

When one physicist asks another, "What's new?" what's the typical response?

C over lambda

Phillip Tran

Why do chemists like nitrates so much?
They're cheaper than day rates.

Phillip Tran

Did you know that you can cool yourself to -273.15˚C and still be 0k?

Phillip Tran

I have many chemistry jokes. I'm just afraid they wont get a good reaction

Phillip Tran

what is the chemical formula for banana?

BaNa2

Phillip Tran

what kind of dogs do chemists have?

laboratory retrievers

Phillip Tran

standard enthalpy of formation is the enthalpy for a single mol compared to say a reaction enthalpy where it is an enthalpy of a whole reaction

Phillip Tran

to add on to the comment before, it is also when delta p=0

Phillip Tran

i think joules is recommended because the formula sheet uses joules for a lot of the formulas but you can use either j or kj as long as youre consistent

Phillip Tran

What did the thermometer say to the graduated cylinder?

At least I have a degree

Phillip Tran

If a king farts, is it a noble gas?

Phillip Tran

What kind of fish is made out of two sodium atoms?

2 Na

Phillip Tran

so how do you use that to determine how many electrons a metal can have on a lewis structure?

Phillip Tran

im late but i wouldve said everything about vsepr

Phillip Tran

What is the name of agent 007's Eskimo cousin? Polar Bond.

Phillip Tran

Why do chemists enjoy working with ammonia? Because it's pretty basic stuff.

Phillip Tran

What kind of fish is made out of 2 sodium atoms?

2Na

Phillip Tran

Why do chemistry professors like to teach about ammonia?

Because it's basic material.

Phillip Tran

What do you do with a sick chemist?

If you can't helium, and you can't curium, then you might as well barium.

Phillip Tran

Did you know that you can cool yourself to -273.15˚C and still be 0k?

Phillip Tran

I would play it safe and use m.s

Phillip Tran

Are you full of Beryllium, Gold, and Titanium?
Because you're BeAuTi-ful ;)

Phillip Tran

Lmao these are pretty good

Phillip Tran

I should start reading the textbook more...

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