Search found 19 matches
- Sun Mar 19, 2017 12:54 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 2016 Final Question 4a
- Replies: 2
- Views: 587
Re: 2016 Final Question 4a
To answer your first question, I'm not 100% sure but I think its from the electrons in the balanced reaction. If you add up the charges on the reactants side of the equation, you get -4 and for the products side, the charge is 0. I'm assuming the n=4 refers to the 4 electrons that would be "add...
- Sun Mar 12, 2017 5:17 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
What kind of phone did Oxygen buy Sulfur for his birthday?
A Sulfone
A Sulfone
- Sun Mar 05, 2017 10:19 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
What did the chemists say after they heard a funny joke?
"That joke was sodium funny. I slapped my neon on that one."
"That joke was sodium funny. I slapped my neon on that one."
- Sun Feb 26, 2017 3:27 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
Organic Chemistry is difficult.
Those who study it have alkynes of trouble.
Those who study it have alkynes of trouble.
- Sun Feb 19, 2017 5:49 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Rate Determining Step
- Replies: 1
- Views: 504
Rate Determining Step
Why is the slowest step the rate determining step in a reaction mechanism?
- Sun Feb 12, 2017 9:47 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Clarification
- Replies: 1
- Views: 482
Re: Clarification
Total entropy includes the system and the surroundings. Standard entropy just includes the system.
- Sun Feb 05, 2017 3:50 pm
- Forum: Balancing Redox Reactions
- Topic: Reduction Potentials
- Replies: 2
- Views: 486
Reduction Potentials
When you are given the standard reduction potentials (E^0) for two of the half reactions, how do you know which value to make negative since reduction potentials are always positive values?
- Sun Jan 29, 2017 2:05 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
Who's the best at making bad jokes about Iodine and Americium?
I Am
I Am
- Sun Jan 22, 2017 6:58 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
Parents: Why don't you clean your room?
Me: In an isolated system, entropy can only increase.
Me: In an isolated system, entropy can only increase.
- Sun Jan 15, 2017 7:11 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
What do you get when you cut an avocado into 6X10^23 pieces?
Guacamole
Guacamole
- Sun Nov 27, 2016 8:15 pm
- Forum: Lewis Acids & Bases
- Topic: HW 12.17
- Replies: 4
- Views: 976
Re: HW 12.17
A Lewis Acid is a species that accepts an electron pair because it will form another bond. Electrons are drawn towards the electronegative oxygen which makes the species act like a Lewis Acid.
- Sun Nov 20, 2016 3:30 pm
- Forum: Calculating the pH of Salt Solutions
- Topic: [H3O][OH-]=10^-14
- Replies: 2
- Views: 2417
Re: [H3O][OH-]=10^-14
Because that will always equal the Kw or the ionization constant for water. From the equations of two water molecules in equilibrium with [H3O+] and [OH-], liquids are not written in the Kw, so only [H30+] and [OH-] will be in the equation making those two equal to the ionization constant (Kw).
- Wed Nov 09, 2016 3:38 pm
- Forum: Naming
- Topic: Right name for the complex ion
- Replies: 2
- Views: 731
Right name for the complex ion
I just have a question on what would be the appropriate name for the complex ion [FeCl3(H20)3]. Would the name be triaquatrichloroferrate(III) or triaquatrichloroiron(III)? Would making iron (III) ferrate be the appropriate thing to do?
- Sun Nov 06, 2016 4:33 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
I'm running out of good chemistry jokes. All the good ones Argon.
- Thu Oct 27, 2016 8:27 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Length and Ionic Character
- Replies: 2
- Views: 3064
Bond Length and Ionic Character
Could someone please explain what bond length/strength of the bond has to do with the molecule's ionic character? I'm a bit confused on this.
- Sun Oct 23, 2016 1:57 pm
- Forum: Electronegativity
- Topic: "Higher" Electron Affinity
- Replies: 4
- Views: 1127
Re: "Higher" Electron Affinity
Yes. The negative sign accounts for the fact that energy is being released, so -60 would be higher than -50 because -60 shows the atom has a greater attraction for an electron. A more negative electron affinity means a greater attraction for an electron.
- Sun Oct 16, 2016 3:34 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2971972
Re: Post All Chemistry Jokes Here
A proton and neutron walk into a bar and order two beers. The bartender comes back with two beers and asks the proton, "Are you sure that you're 21?" The proton replies, "I'm Positive!!" So the bartender gives him the first beer. The bartender then goes over to the neutron and sa...
- Sun Oct 09, 2016 12:22 pm
- Forum: Properties of Electrons
- Topic: Electon Orbitals
- Replies: 2
- Views: 717
Re: Electon Orbitals
I wouldn't completely disregard Bohr's model, but I would use quantum mechanics more because it is more specific. The only thing important in the Bohr model is the size of the orbital "n." Quantum mechanics treats the electron as a particle and wave, so we can use three different quantum n...
- Sun Oct 02, 2016 5:39 pm
- Forum: Einstein Equation
- Topic: Wavelengths [ENDORSED]
- Replies: 3
- Views: 968
Re: Wavelengths [ENDORSED]
You should convert your answer to what was originally given in the question. However, if the question is also asking you to identify a specific type of light, you should convert to nanometers so the wavelength is easy to identify.