Search found 16 matches

by Priscilla_Covarrubias_HL
Mon Mar 13, 2017 10:43 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

Organic Chemistry is very hard, I have alkynes trouble.lol
by Priscilla_Covarrubias_HL
Mon Mar 06, 2017 7:47 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15892

Re: Quiz 3 Winter 2017

For #6 in the quiz prep, both are nucleophiles, so how would an electrophile look like? Would it be a molecule that wants more electrons to be complete?
by Priscilla_Covarrubias_HL
Fri Mar 03, 2017 12:09 am
Forum: General Rate Laws
Topic: Quiz 2 Thursday question
Replies: 1
Views: 287

Quiz 2 Thursday question

In quiz 2, was there a preequilibrium problem? During the test I thought this was one was..."The standard of living.... Haber-bosch process for production of ammonia in fertilizers, however the reaction has a huge activation energy, and catalysts are bring employed to aid rxn... where the first...
by Priscilla_Covarrubias_HL
Tue Feb 21, 2017 10:17 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15318

Quiz 2 Prep Winter 2017

For Quiz 2 Prep, how do you answer #1, where it asks to find the rate of formation of NO2 when the rate of decomposition of N2O5 is 2.89 mol/L*s?
by Priscilla_Covarrubias_HL
Mon Feb 06, 2017 7:43 pm
Forum: Balancing Redox Reactions
Topic: A galvanic cell-Balance reaction
Replies: 1
Views: 193

A galvanic cell-Balance reaction

For question 7 in winter 2014 midterm, does it matter what equation you flip?
by Priscilla_Covarrubias_HL
Sun Feb 05, 2017 8:07 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

LOST AN ELECTRON....YOU REALLY HAVE TO KEEP AN ION THEM.
by Priscilla_Covarrubias_HL
Thu Jan 26, 2017 10:01 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Midterm winter 2013 question #4
Replies: 3
Views: 315

Midterm winter 2013 question #4

For question #4 you are asked to calculate the work from B to C (the process is reversible, isothermal expansion at 3045K). Both volume (L) and pressure (atm) are changing. What equation would you use to calculate work: w=-nRTln(v2/v1) or w=-nRTln(p1/p2)?
by Priscilla_Covarrubias_HL
Tue Jan 17, 2017 9:29 pm
Forum: Phase Changes & Related Calculations
Topic: Calculating Enthalpy [ENDORSED]
Replies: 4
Views: 467

Calculating Enthalpy [ENDORSED]

For the example problem in class dealing with Standard Enthalpy of formation... why is it that you divide by 2? Is it because there 2 moles of the product?
by Priscilla_Covarrubias_HL
Fri Dec 02, 2016 9:31 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quadratic Formula [ENDORSED]
Replies: 2
Views: 352

Quadratic Formula [ENDORSED]

When you solve for the x using the quadratic formula and you get two positive x values....how do you know which one to choose as your correct x?
by Priscilla_Covarrubias_HL
Sat Nov 26, 2016 9:55 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

Guy: "Hey Girl, are you made of Copper and Tellurium?....Because you are CuTe :)"
by Priscilla_Covarrubias_HL
Wed Nov 09, 2016 7:03 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

"I would never try to poison you... Now eat your Pb and jelly sandwich" hahahaha
by Priscilla_Covarrubias_HL
Sun Oct 30, 2016 12:32 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

Hahahahahaha
Na: That was sodium funny!
Ne: I slapped my neon that one!
by Priscilla_Covarrubias_HL
Sat Oct 22, 2016 9:23 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018635

Re: Post All Chemistry Jokes Here

Q: Why was the mole of oxygen molecules excited when he walked out of the singles bar?
A: He got Avogadro's number!
by Priscilla_Covarrubias_HL
Wed Oct 12, 2016 10:41 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Chemical equations too slow... any advice? [ENDORSED]
Replies: 18
Views: 1540

Balancing Chemical equations too slow... any advice? [ENDORSED]

Does anyone have advice on how to speed up the process of balancing equations? Is there any trends that I should look out for? .... or any elements that I should balance out first?... or different methods?
by Priscilla_Covarrubias_HL
Tue Oct 04, 2016 9:57 pm
Forum: Limiting Reactant Calculations
Topic: Quiz 1 prep. #8-Limiting reagent [ENDORSED]
Replies: 3
Views: 941

Quiz 1 prep. #8-Limiting reagent [ENDORSED]

In question #8 in Quiz 1 Preparation, the question asks you "to determine the limiting reagent if 21.4g NH3 is reacted with 42.5g 02." I converted the 21.4g of NH3 into moles and I got 1.26 mol NH3. I also did the same for O2 and I got 1.33 mol O2. I thought that the 1.26 mol NH3 was the l...
by Priscilla_Covarrubias_HL
Fri Sep 30, 2016 2:56 am
Forum: Properties of Light
Topic: Increasing Intensity in Photoelectric Effect [ENDORSED]
Replies: 9
Views: 979

Increasing Intensity in Photoelectric Effect [ENDORSED]

In the last lecture (9/28), the Professor mentioned that increasing the intensity of the light source does not remove more electrons from the metal. I also heard that increasing the intensity of the light source actually increases the number of photons but not the amount of energy each photon carrie...

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