Search found 16 matches

by Ryan Petrecca 1L
Sun Mar 05, 2017 6:44 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

xD
by Ryan Petrecca 1L
Sun Feb 26, 2017 6:15 pm
Forum: *Electrophiles
Topic: AlCl3 as an electrophile
Replies: 3
Views: 376

Re: AlCl3 as an electrophile

It is an electrophile because the Al wants those 2 missing electrons in order to have its stable, full octet.
by Ryan Petrecca 1L
Sun Feb 12, 2017 9:23 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

XD
by Ryan Petrecca 1L
Sun Feb 05, 2017 2:03 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

hehe XD
by Ryan Petrecca 1L
Sun Jan 29, 2017 9:43 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

Lol
by Ryan Petrecca 1L
Sun Jan 22, 2017 4:58 pm
Forum: Phase Changes & Related Calculations
Topic: Derivations
Replies: 21
Views: 2134

Re: Derivations

I think you will be fine regarding the derivations, you will not have to know them as most of the equations needed will be given.
by Ryan Petrecca 1L
Mon Jan 16, 2017 3:22 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Units of Reaction Enthalpies
Replies: 11
Views: 1436

Re: Units of Reaction Enthalpies

It can be either kJ/mol or kJ, just keep in mind the coeffecients of the products and what the question wants you to give as a final answer.
by Ryan Petrecca 1L
Sat Dec 03, 2016 12:07 pm
Forum: General Science Questions
Topic: ICE Box [ENDORSED]
Replies: 2
Views: 514

Re: ICE Box [ENDORSED]

You will most likely be using them in weak acid and base problems to find their equilibrium concentrations; usually some indicators that you will have to use an ICE table is that they are asking for the concentrations and they have provided you with a "k" value (kb or ka).
by Ryan Petrecca 1L
Thu Dec 01, 2016 5:42 pm
Forum: *Titrations & Titration Calculations
Topic: Hwk 13.29
Replies: 5
Views: 793

Re: Hwk 13.29

Your final gram calculation for the NaOH is 1 decimal place off, but your final percentage is still correct...weird, must of just had a typo or something. *thumbs up*
by Ryan Petrecca 1L
Mon Nov 21, 2016 5:14 pm
Forum: Conjugate Acids & Bases
Topic: Conjugate Acids & Conjugate Bases? [ENDORSED]
Replies: 2
Views: 921

Re: Conjugate Acids & Conjugate Bases? [ENDORSED]

Examples: Weak acid and its conjugate base: CH3COOH + H2O<--> (CH3COO-) + (H30+); in this example, acetic acid (CH3COOH) loses a proton (H+) and becomes its conjugate base: an acetate ion. Weak Base and its conjugate acid: NH3 + H2O<--> (NH4+) + (OH-); in this example, ammonia (NH3) gains a proton (...
by Ryan Petrecca 1L
Mon Nov 21, 2016 5:03 pm
Forum: Conjugate Acids & Bases
Topic: pH and pOH
Replies: 4
Views: 630

Re: pH and pOH

I believe p means something along the lines of "power of (hydrogen)" or I have also heard it used as "potential of (hydrogen)."
by Ryan Petrecca 1L
Thu Nov 03, 2016 6:21 pm
Forum: Sigma & Pi Bonds
Topic: Sigma and Pi Bonds
Replies: 3
Views: 509

Re: Sigma and Pi Bonds

Think of it like this: generally, single bonds are sigma bonds and each additional bond (i.e. within double and triple bonds) is a pi bond (double bonds have 1 sigma bond and 1 pi bond, triple bonds have 1 sigma bond and 2 pi bonds).
by Ryan Petrecca 1L
Sun Oct 16, 2016 7:29 pm
Forum: Lewis Structures
Topic: Lewis Structures
Replies: 6
Views: 451

Re: Lewis Structures

I don't know the exact length of a triple bond, but it's not that important to know the exact length of single, double, and triple bonds as these lengths vary between molecules. What is important is that bond length decreases as it goes from single>double>triple.
by Ryan Petrecca 1L
Sun Oct 16, 2016 7:16 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

I asked a couple of my friends if they wanted to hear a good sodium joke. They said Na.
by Ryan Petrecca 1L
Sun Oct 16, 2016 7:14 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015272

Re: Post All Chemistry Jokes Here

I got all these good chemistry jokes, I'm scared they won't get a good reaction :'(
by Ryan Petrecca 1L
Wed Sep 28, 2016 11:03 pm
Forum: Student Social/Study Group
Topic: Chemistry Joke
Replies: 13
Views: 1355

Re: Chemistry Joke

sodium sodium sodium sodium sodium sodium sodium sodium Batman!....

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