Search found 18 matches
- Sun Mar 19, 2017 8:08 pm
- Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
- Topic: Bond Angles of equatorials and axials
- Replies: 3
- Views: 1638
Re: Bond Angles of equatorials and axials
Equatorial and axial alternate, so make sure that you are alternating between the different carbons and their bonds.
- Sun Mar 05, 2017 4:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
Most chem jokes are bad since most of the good ones Argon.
- Wed Feb 22, 2017 9:49 pm
- Forum: Experimental Details
- Topic: Each orders' units
- Replies: 3
- Views: 813
Re: Each orders' units
Yes you can. It would be a clever way to ask a question on the quiz. based on the units, you can determine the order.
- Sun Feb 19, 2017 8:09 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
I asked the guy sitting next to me if he had any Sodium Hypobromite…
He said NaBrO
He said NaBrO
- Sun Feb 19, 2017 8:00 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: microscopic reversibility
- Replies: 1
- Views: 541
Re: microscopic reversibility
The point of knowing that it is reversible through the same process allows you to use the same half-steps and information in order to calculate the reverse reaction.
- Sat Feb 11, 2017 1:06 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
Why did the bear dissolve in water?
Because it was a polar bear!
Because it was a polar bear!
- Sat Feb 11, 2017 1:03 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Reducing agents [ENDORSED]
- Replies: 2
- Views: 778
Re: Reducing agents [ENDORSED]
Reducing agent means that it is willing to oxidize. The more willing it is to oxidize, the stronger the reducing agent. So the more electrons an atom or ion is willing to donate, the stronger it is as a reducing agent.
- Sun Feb 05, 2017 11:52 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
“What is the difference between thermodynamics and a stick?
Answer: “A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.”
Answer: “A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.”
- Wed Jan 25, 2017 3:44 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs Free Energy: Spontaneous versus Unstable?
- Replies: 2
- Views: 870
Re: Gibbs Free Energy: Spontaneous versus Unstable?
The question is asking about stability in terms of the decomposition, meaning is it stable to decompose into its elements. The questions is basically asking if it will decompose spontaneously or not, so when it decomposes is it stable or not.
- Sat Jan 21, 2017 1:43 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Themodynamics: Systems at Equilibrium [ENDORSED]
- Replies: 1
- Views: 492
Re: Themodynamics: Systems at Equilibrium [ENDORSED]
I believe the whole point is that the systems were at equilibrium and then something upset the balance and you calculate the work expended to return to equilibrium.
- Sun Jan 15, 2017 11:51 pm
- Forum: Phase Changes & Related Calculations
- Topic: Change of State and energy
- Replies: 2
- Views: 558
Re: Change of State and energy
At its sublimation point, it would just be the energy of formation at water state that it is in, whether its a solid or a gas. Doesn't matter the phase change.
- Sun Nov 27, 2016 12:58 pm
- Forum: General Science Questions
- Topic: Converting Partial Pressure to Concentration
- Replies: 1
- Views: 7621
Re: Converting Partial Pressure to Concentration
Yes, R will be provided to us. You just have to pay attention to what the question is asking for, and it may require you to convert from partial pressure to concentration or the other way around. PV=nRt, which means that P/Rt=n/V, P/Rt=molarity. Using that conversion, you should be able to derive on...
- Mon Nov 21, 2016 10:18 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Why are they using the energy levels like this?
- Replies: 3
- Views: 979
Re: Why are they using the energy levels like this?
The question states that we observe this spectrum during the emission of light, which means that the electron is giving off energy, ergo it is moving from a higher energy level to a lower energy level. If it was going from low to high it would be absorbing energy rather than giving it off. This is w...
- Sun Nov 20, 2016 11:44 pm
- Forum: Amphoteric Compounds
- Topic: Inverse Relationship Between H3O+ and OH- [ENDORSED]
- Replies: 2
- Views: 10220
Re: Inverse Relationship Between H3O+ and OH- [ENDORSED]
If you can calculate the concentration of OH- you can calculate the concentration of H3O+. Their concentrations multiply out to 1x10^-14.
- Sun Nov 13, 2016 7:08 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Partial Pressure or Concentration
- Replies: 3
- Views: 745
Re: Partial Pressure or Concentration
Sometimes you will be dealing with a reaction that has both Kp and Kc. Make sure that you understand what the question is asking. If its asking for the molar concentration, that use Kc, but if its asking about pressure then use Kp. Remember that aqueous solutions can produce both aqueous, gaseous, a...
- Sun Oct 16, 2016 8:11 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
If a bear in Yosemite and a bear in Alaska both fall into the water, which one dissolves faster? The one in Alaska obviously because it's polar.
- Sun Oct 09, 2016 11:17 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3917474
Re: Post All Chemistry Jokes Here
I asked the guy sitting next to me if he had any sodium hypobromite... he said NaBro.
- Sun Oct 02, 2016 4:28 pm
- Forum: Student Social/Study Group
- Topic: CHEM JOKES
- Replies: 29
- Views: 7027
Re: CHEM JOKES
If you're not part of the solution, you're part of the precipitate.