Search found 9 matches

by Jonathan Orozco 1A
Sun Mar 12, 2017 1:29 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 209
Views: 101110

Re: Saying Thank You to Dr. Lavelle

Dear Dr. Lavelle, Thank you for such hard work and dedication you put into structuring Chemistry 14B. At first I was over whelmed when i bought the course reader but once you began going through the examples, and giving us more information it made it way easier to understand. We are all lucky to hav...
by Jonathan Orozco 1A
Sun Mar 05, 2017 1:37 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1015398

Re: Post All Chemistry Jokes Here (Jonathan Orozco)

H2O is water and H2O2 is hydrogen peroxide. What is H2O4?


Answer: Drinking
by Jonathan Orozco 1A
Mon Feb 20, 2017 7:44 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15312

Re: Quiz 2 Winter 2017

Can anyone help me with number 6 from Quiz two preparation? I don't understand how the answer is 0.30 M
I used the second order integrated Rate law, and my answer for K was 0.11092 i was wondering if i am going in the right direction and if so can you help me finish peals and thank you very much.
by Jonathan Orozco 1A
Fri Feb 17, 2017 2:53 pm
Forum: Student Social/Study Group
Topic: Quiz 2 Preparation
Replies: 2
Views: 413

Quiz 2 Preparation

Quick question will the answers for quiz 2 preparation be posted on chemistry community, as a reference to double check answers?
Thank You in advance
by Jonathan Orozco 1A
Sat Feb 11, 2017 9:19 pm
Forum: Student Social/Study Group
Topic: Chemistry Joke
Replies: 57
Views: 2307

Chemistry Joke

Question: Why does hamburger have less energy than steak?

Answer: Because it's in the ground state.
by Jonathan Orozco 1A
Wed Jan 25, 2017 7:42 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Entropy Chapter 9 #7
Replies: 1
Views: 222

Entropy Chapter 9 #7

Hello everyone i was wondering any one could send me in the right direction as to which formula to use for question #7 chapter 9. Question #7: Assuming that the heat capacity of an ideal gas is independent of temperature, calculate the entropy change associated with raising the temperature of 1.00 m...
by Jonathan Orozco 1A
Wed Jan 18, 2017 7:36 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Chapter 8 Question #3 (The First Law)
Replies: 2
Views: 261

Chapter 8 Question #3 (The First Law)

Hi everyone, i was wondering if anyone could help me solve number 3 from the homework problems. Question 3: Air in a bicycle pump is compressed by pushing in the handle. If the inner diameter of the pump is 3.0 cm and the pump is depressed 20.cm with a pressure of 2.00 atm, (a) how much work is done...
by Jonathan Orozco 1A
Wed Jan 18, 2017 7:35 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Chapter 8 Question #3 (The First Law) [ENDORSED]
Replies: 1
Views: 246

Chapter 8 Question #3 (The First Law) [ENDORSED]

Hi everyone, i was wondering if anyone could help me solve number 3 from the homework problems. Question 3: Air in a bicycle pump is compressed by pushing in the handle. If the inner diameter of the pump is 3.0 cm and the pump is depressed 20.cm with a pressure of 2.00 atm, (a) how much work is done...
by Jonathan Orozco 1A
Wed Jan 11, 2017 7:57 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond Enthalpies (Method #3)
Replies: 1
Views: 227

Bond Enthalpies (Method #3)

Hey everyone I was wondering if you all could help me with todays material in lecture, specifically Calculating Standard reaction enthalpy. I was mostly confused on the process to calculate standard reaction enthalpy. Can anyone explain using the class example of CH4(g) +2O2(g) = CO2(g) +2H2O (l) If...

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