Search found 6 matches
- Sat Feb 18, 2017 4:42 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3589677
- Sun Feb 05, 2017 4:20 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Page 50 Course Reader Explanation
- Replies: 2
- Views: 475
Re: Page 50 Course Reader Explanation
Thank you very much. This makes a lot of sense!
- Sun Feb 05, 2017 2:42 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Page 50 Course Reader Explanation
- Replies: 2
- Views: 475
Page 50 Course Reader Explanation
Page 50 of the course reader asks us to determine if Gold can dissolve in 1M nitric acid to for 1M Au3+ solution. We are given the E standard for the reduction of nitric acid (0.96 V) and the oxidization of gold (-1.50 V). Why then does he add the two values instead of subtracting to get E standard ...
- Sun Jan 29, 2017 1:57 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3589677
Re: Post All Chemistry Jokes Here
If you're not part of the solution, you're part of the precipitate.
- Fri Jan 20, 2017 8:54 pm
- Forum: Calculating Work of Expansion
- Topic: Lecture question [ENDORSED]
- Replies: 2
- Views: 747
Re: Lecture question [ENDORSED]
Basically, the system Professor Lavelle sets up is almost similar to the system in the text book. The mass can be seen as the external pressure, Pex, and the heat reservoir is the heat entering the system to replace the energy lost by doing work. The point he was trying to make was that different sy...
- Fri Jan 13, 2017 6:41 pm
- Forum: Phase Changes & Related Calculations
- Topic: 8.21 Help
- Replies: 2
- Views: 536
Re: 8.21 Help
On page 269 of the book, the formula for heat lost or gained is given as q=m x Cs(specific heat capacity of a substance) x change in temperature. The specific heat capacity of copper is 0.38 Joules per degree celsius grams and of water is 4.18 Joules per degree celsius grams. So you plug in these va...