Search found 18 matches

by Kareem
Sun Mar 19, 2017 8:08 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Bond Angles of equatorials and axials
Replies: 3
Views: 638

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.
by Kareem
Sun Mar 05, 2017 4:34 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

Re: Post All Chemistry Jokes Here

Most chem jokes are bad since most of the good ones Argon.
by Kareem
Wed Feb 22, 2017 9:49 pm
Forum: Experimental Details
Topic: Each orders' units
Replies: 3
Views: 446

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.
by Kareem
Sun Feb 19, 2017 8:09 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

Re: Post All Chemistry Jokes Here

I asked the guy sitting next to me if he had any Sodium Hypobromite…
He said NaBrO
by Kareem
Sun Feb 19, 2017 8:00 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: microscopic reversibility
Replies: 1
Views: 260

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.
by Kareem
Sat Feb 11, 2017 1:06 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

Re: Post All Chemistry Jokes Here

Why did the bear dissolve in water?
Because it was a polar bear!
by Kareem
Sat Feb 11, 2017 1:03 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Reducing agents [ENDORSED]
Replies: 2
Views: 347

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.
by Kareem
Sun Feb 05, 2017 11:52 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

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.”
by Kareem
Wed Jan 25, 2017 3:44 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs Free Energy: Spontaneous versus Unstable?
Replies: 2
Views: 388

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.
by Kareem
Sat Jan 21, 2017 1:43 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Themodynamics: Systems at Equilibrium [ENDORSED]
Replies: 1
Views: 231

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.
by Kareem
Sun Jan 15, 2017 11:51 pm
Forum: Phase Changes & Related Calculations
Topic: Change of State and energy
Replies: 2
Views: 239

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.
by Kareem
Sun Nov 27, 2016 12:58 pm
Forum: General Science Questions
Topic: Converting Partial Pressure to Concentration
Replies: 1
Views: 4784

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...
by Kareem
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: 569

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...
by Kareem
Sun Nov 20, 2016 11:44 pm
Forum: Amphoteric Compounds
Topic: Inverse Relationship Between H3O+ and OH- [ENDORSED]
Replies: 2
Views: 4101

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.
by Kareem
Sun Nov 13, 2016 7:08 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure or Concentration
Replies: 3
Views: 377

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...
by Kareem
Sun Oct 16, 2016 8:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

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.
by Kareem
Sun Oct 09, 2016 11:17 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019389

Re: Post All Chemistry Jokes Here

I asked the guy sitting next to me if he had any sodium hypobromite... he said NaBro.
by Kareem
Sun Oct 02, 2016 4:28 pm
Forum: Student Social/Study Group
Topic: CHEM JOKES
Replies: 29
Views: 3501

Re: CHEM JOKES

If you're not part of the solution, you're part of the precipitate.

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