Search found 10 matches

by Ashley Shirriff 2F
Fri Mar 17, 2017 10:26 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1019085

Re: Post All Chemistry Jokes Here

A neutron walks into a bar and asks the bartender, "How much for a beer?" The bartender says, "For you, no charge."
by Ashley Shirriff 2F
Fri Mar 17, 2017 10:13 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1019085

Re: Post All Chemistry Jokes Here

Q: What did the scientist say when he found 2 isotopes of helium?
A: HeHe
by Ashley Shirriff 2F
Fri Mar 10, 2017 10:09 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1019085

Re: Post All Chemistry Jokes Here

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by Ashley Shirriff 2F
Sun Mar 05, 2017 10:38 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1019085

Re: Post All Chemistry Jokes Here

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by Ashley Shirriff 2F
Fri Feb 24, 2017 3:32 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1019085

Re: Post All Chemistry Jokes Here

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by Ashley Shirriff 2F
Sat Feb 11, 2017 6:44 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Problem 14.15
Replies: 4
Views: 450

Re: Problem 14.15

Adding to this, the solution manual has Ni(s) on the cathode side, even though it was not part of the final reaction. I understand that it is used as the conducting electrode for the cathode, however, how did they know to use Ni? And how do we know when we have to add a conducting electrode?
by Ashley Shirriff 2F
Sat Jan 28, 2017 11:35 pm
Forum: General Science Questions
Topic: Sig Figs
Replies: 5
Views: 553

Re: Sig Figs

It depends on the data given in the question. For example, when multiplying and dividing, your answer will have the same number of sig figs as the number given in the problem with the least number of significant figures.
by Ashley Shirriff 2F
Sat Jan 21, 2017 12:22 am
Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
Topic: General questions [ENDORSED]
Replies: 4
Views: 674

Re: General questions [ENDORSED]

For number 2:
Because degeneracy (W) refers to the number of ways of achieving a certain energy state, and gas molecules occupy many more states than liquid or solid molecules, Wg will be greater than Wl which is greater than Ws for the same reason.
by Ashley Shirriff 2F
Sat Jan 14, 2017 4:54 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calculating Heat Required
Replies: 3
Views: 448

Re: Calculating Heat Required

I understand the meanings behind each component within the equations; however I am still unsure as to how you know when to use which one. I assumed that if the problem states that, for example, there is constant pressure and gives the amount of the substances involved in moles then you would use mol...

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