Search found 54 matches

by Phillip Tran
Sun Mar 18, 2018 5:23 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Stoichiometric coefficients
Replies: 4
Views: 363

Re: Stoichiometric coefficients

only for elementary steps
by Phillip Tran
Sun Mar 18, 2018 5:22 pm
Forum: Calculating Work of Expansion
Topic: Conversion of R
Replies: 7
Views: 368

Re: Conversion of R

youll use 8.314 most of the time but whenver the units are L.atm then you use 8.206
by Phillip Tran
Sun Mar 18, 2018 5:21 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: complex molecules
Replies: 8
Views: 384

Re: complex molecules

the more complex a molecule is, the more entropy it has
by Phillip Tran
Sun Mar 18, 2018 5:16 pm
Forum: General Rate Laws
Topic: rate law
Replies: 6
Views: 471

Re: rate law

you dont use products in the rate law but you have the right idea with the coefficients
by Phillip Tran
Sun Mar 18, 2018 5:14 pm
Forum: *Nucleophiles
Topic: SN2 Reactions
Replies: 4
Views: 882

Re: SN2 Reactions

yes you need to know
by Phillip Tran
Sun Mar 18, 2018 5:12 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Spontaneity in a cell reaction
Replies: 4
Views: 270

Re: Spontaneity in a cell reaction

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
by Phillip Tran
Sun Mar 18, 2018 5:10 pm
Forum: General Rate Laws
Topic: Rate constant units
Replies: 6
Views: 427

Re: Rate constant units

write it all out and cancel whatever you can. whats left is your units
by Phillip Tran
Sun Mar 18, 2018 5:08 pm
Forum: *Identifying Primary, Secondary, Tertiary, Quaternary Carbons, Hydrogens, Nitrogens
Topic: Final
Replies: 3
Views: 530

Re: Final

yea from both. its not too bad
by Phillip Tran
Sun Mar 18, 2018 5:07 pm
Forum: General Rate Laws
Topic: The Collision Model and Activated Complex Model
Replies: 3
Views: 391

Re: The Collision Model and Activated Complex Model

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
by Phillip Tran
Sun Mar 18, 2018 5:04 pm
Forum: Balancing Redox Reactions
Topic: Winter 2013 final Q4
Replies: 9
Views: 416

Re: Winter 2013 final Q4

course readers^
by Phillip Tran
Sun Mar 18, 2018 5:02 pm
Forum: *Carboxylic Acids
Topic: Functional Groups
Replies: 4
Views: 633

Re: Functional Groups

Just memorize the six we learned and you solid
by Phillip Tran
Sun Mar 18, 2018 5:02 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Spontaneity question
Replies: 7
Views: 332

Re: Spontaneity question

dG=dH-TdS
keep dG negative to maintain spontaneity
by Phillip Tran
Sun Mar 18, 2018 5:00 pm
Forum: Phase Changes & Related Calculations
Topic: Steam
Replies: 7
Views: 604

Re: Steam

technically anything at 100 C would cause a severe burn
by Phillip Tran
Sun Mar 18, 2018 4:57 pm
Forum: Student Social/Study Group
Topic: Final
Replies: 11
Views: 926

Re: Final

I agree with kyle
by Phillip Tran
Sun Mar 18, 2018 4:57 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Catalyst and Intermediate
Replies: 7
Views: 379

Re: Catalyst and Intermediate

catalysts are usually in the reactants of the first step and the products of the second step. Intermediates is the other way around
by Phillip Tran
Sun Mar 18, 2018 4:56 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 202
Views: 73445

Re: Saying Thank You to Dr. Lavelle

Dr. Lavelle

You da real mvp

Yours truly
by Phillip Tran
Sun Mar 18, 2018 4:55 pm
Forum: General Rate Laws
Topic: 15.85 Drawing structures for activated complex
Replies: 3
Views: 373

Re: 15.85 Drawing structures for activated complex

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
by Phillip Tran
Sun Mar 11, 2018 1:51 am
Forum: General Science Questions
Topic: born haber cyle
Replies: 1
Views: 355

born haber cyle

do we need to know the born haber cycle?
by Phillip Tran
Sun Mar 11, 2018 1:50 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: standard cell potential
Replies: 1
Views: 94

standard cell potential

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??
by Phillip Tran
Sun Mar 11, 2018 1:48 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: reversible/irreversible
Replies: 2
Views: 108

reversible/irreversible

can anyone explain the difference between reversible and irreversible expansion? are there specific formulas for each conditions?
by Phillip Tran
Mon Feb 26, 2018 1:39 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

What is it called when Queen of England farts?

A noble gas
by Phillip Tran
Mon Feb 26, 2018 1:33 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Why did the acid go to the gym?

To become a buffer solution!
by Phillip Tran
Mon Feb 26, 2018 1:32 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

How do Sulfur and Oxygen communicate?

a sulfone
by Phillip Tran
Sun Feb 11, 2018 9:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

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

mitosis
by Phillip Tran
Sun Feb 11, 2018 9:05 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."
by Phillip Tran
Sun Feb 11, 2018 9:04 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

what do you call a wheel made of iron?

a ferrous wheel
by Phillip Tran
Sun Feb 04, 2018 7:38 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

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

C over lambda
by Phillip Tran
Sun Feb 04, 2018 7:34 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Why do chemists like nitrates so much?
They're cheaper than day rates.
by Phillip Tran
Sun Feb 04, 2018 7:33 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Did you know that you can cool yourself to -273.15˚C and still be 0k?
by Phillip Tran
Fri Jan 26, 2018 11:42 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

I have many chemistry jokes. I'm just afraid they wont get a good reaction
by Phillip Tran
Fri Jan 26, 2018 11:40 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

what is the chemical formula for banana?

BaNa2
by Phillip Tran
Fri Jan 26, 2018 11:39 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

what kind of dogs do chemists have?

laboratory retrievers
by Phillip Tran
Sat Jan 20, 2018 5:40 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Standard Enthalpy of Formation
Replies: 3
Views: 97

Re: Standard Enthalpy of Formation

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
by Phillip Tran
Sat Jan 20, 2018 5:32 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: 8.49
Replies: 2
Views: 150

Re: 8.49

to add on to the comment before, it is also when delta p=0
by Phillip Tran
Sat Jan 20, 2018 5:31 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: J vs. kJ [ENDORSED]
Replies: 4
Views: 121

Re: J vs. kJ [ENDORSED]

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
by Phillip Tran
Fri Jan 12, 2018 11:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

What did the thermometer say to the graduated cylinder?

At least I have a degree
by Phillip Tran
Fri Jan 12, 2018 11:44 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

If a king farts, is it a noble gas?
by Phillip Tran
Fri Jan 12, 2018 11:42 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

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

2 Na
by Phillip Tran
Sun Dec 10, 2017 3:24 pm
Forum: Coordinate Covalent Bonds
Topic: transition metals
Replies: 3
Views: 513

Re: transition metals

so how do you use that to determine how many electrons a metal can have on a lewis structure?
by Phillip Tran
Sun Dec 10, 2017 3:22 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Memorizing
Replies: 3
Views: 315

Re: Memorizing

im late but i wouldve said everything about vsepr
by Phillip Tran
Mon Nov 27, 2017 6:24 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

What is the name of agent 007's Eskimo cousin? Polar Bond.
by Phillip Tran
Mon Nov 27, 2017 6:23 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Why do chemists enjoy working with ammonia? Because it's pretty basic stuff.
by Phillip Tran
Sun Nov 05, 2017 11:54 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

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

2Na
by Phillip Tran
Sun Nov 05, 2017 11:49 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Why do chemistry professors like to teach about ammonia?

Because it's basic material.
by Phillip Tran
Sun Oct 29, 2017 8:41 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

What do you do with a sick chemist?


If you can't helium, and you can't curium, then you might as well barium.
by Phillip Tran
Sun Oct 29, 2017 8:40 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Did you know that you can cool yourself to -273.15˚C and still be 0k?
by Phillip Tran
Fri Oct 13, 2017 2:41 pm
Forum: DeBroglie Equation
Topic: Should velocity always be in m.s. when solving? [ENDORSED]
Replies: 11
Views: 790

Re: Should velocity always be in m.s. when solving? [ENDORSED]

I would play it safe and use m.s
by Phillip Tran
Fri Oct 13, 2017 2:37 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Are you full of Beryllium, Gold, and Titanium?
Because you're BeAuTi-ful ;)
by Phillip Tran
Fri Oct 06, 2017 9:51 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 912539

Re: Post All Chemistry Jokes Here

Lmao these are pretty good
by Phillip Tran
Fri Oct 06, 2017 9:47 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 81
Views: 52209

Re: Reading the textbook [ENDORSED]

I should start reading the textbook more...

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