Search found 16 matches
- Sun Mar 19, 2017 10:20 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
I tell bad chemistry jokes because all the good ones Argon.
- Sun Mar 12, 2017 10:19 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
What do you get when you cut an avocado into 6x10^23 pieces?
Guacamole.
Guacamole.
- Mon Mar 06, 2017 12:02 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
"Do you want any Sodium, Bromine, or Oxygen?" "NaBrO"
- Mon Feb 20, 2017 9:57 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
what do you do when a chemist dies? you barium
- Sun Feb 05, 2017 12:09 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
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.
- Fri Feb 03, 2017 6:35 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
Did you hear oxygen and magnesium are dating? OMg!
- Sun Jan 22, 2017 10:00 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3009264
Re: Post All Chemistry Jokes Here
Did you know that you can cool yourself to -273.15˚C and still be 0k?
- Tue Nov 29, 2016 2:54 pm
- Forum: Identifying Acidic & Basic Salts
- Topic: Acidic Salts
- Replies: 3
- Views: 1205
Re: Acidic Salts
Does this mean that the anions in salts do not affect the pH, only the positively charged cations, since they are the ones who seek to donate H+ ions?
- Tue Nov 29, 2016 2:39 pm
- Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
- Topic: Adding salt and no shift in equilibrium?
- Replies: 2
- Views: 845
Re: Adding salt and no shift in equilibrium?
Could you clarify on how adding the salt with the conjugate base would affect the Hydronium concentration? I understand that it increases the conjugate base concentration in order to buffer the solution. Also, do we factor in the hydronium concentration when we consider the equilibrium constant of t...
- Tue Nov 29, 2016 2:27 pm
- Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
- Topic: Icebox
- Replies: 4
- Views: 1148
Re: Icebox
Doesn't initial moles only factor into the ICE chart by influencing the amount of change, x? For example, if a reactant started initially with three moles, the change would be -3x instead of simply -x.
- Tue Nov 29, 2016 2:16 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Kc vs Kp and all the other constants
- Replies: 2
- Views: 757
Re: Kc vs Kp and all the other constants
When you say the reaction can be mixed for Kc, are you talking about certain reactants or products being in different phases, like aqueous? If so, then would that mean Kp and Kc would be different if not all the reactants and products were gases?
- Tue Nov 29, 2016 2:12 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Treating Systems that have Small Equilibrium Constants
- Replies: 4
- Views: 1283
Re: Treating Systems that have Small Equilibrium Constants
I can't remember whether Lavelle mentioned 10^-4 as a cut off for being able to approximate, but in the video posted above, the lecturer does go over it and says when Kc is less than or equal to 10^-4, we can approximate x to be a very small number and use the approximation method.
- Tue Nov 29, 2016 1:47 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Identifying a strong acid
- Replies: 6
- Views: 2256
Re: Identifying a strong acid
Are we expected to be able to recognize and remember all of the strong and weak acids/bases given to us in the course reader?
- Sun Oct 23, 2016 8:38 pm
- Forum: Ionic & Covalent Bonds
- Topic: formal charge [ENDORSED]
- Replies: 4
- Views: 2120
Re: formal charge [ENDORSED]
My TA told me about a general guideline to follow when trying to figure out the best Lewis structures. When the molecule consists of atoms down and to the right of carbon, generally you would try to optimize the formal charges of each atom. For bonds between atoms down and to the left of boron, you ...
- Sun Oct 16, 2016 4:20 pm
- Forum: Photoelectric Effect
- Topic: Question Wording on Photoelectric Effect
- Replies: 4
- Views: 1040
Re: Question Wording on Photoelectric Effect
I also have a question on the wording involved with photoelectric effect problems. For example, in the quiz problems, what would "energy dissipated" be considered as? Would this be considered as the excess energy lost after reaching the threshold energy? If so, does that mean I could also ...
- Fri Sep 30, 2016 3:25 pm
- Forum: Properties of Light
- Topic: Increasing Intensity in Photoelectric Effect [ENDORSED]
- Replies: 9
- Views: 2195
Re: Increasing Intensity in Photoelectric Effect [ENDORSED]
So for further clarification, the intensity of the light has no effect until the energy of the photon reaches the work function? Also, I'm confused on what happens to the excess energy from the light.