Search found 18 matches
- Thu Mar 16, 2017 1:00 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Wed Mar 08, 2017 3:46 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Thu Mar 02, 2017 11:36 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Thu Feb 23, 2017 10:06 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Fri Feb 17, 2017 2:14 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Thu Feb 09, 2017 1:57 pm
- Forum: Balancing Redox Reactions
- Topic: 14.3
- Replies: 2
- Views: 535
Re: 14.3
Hey Ashley! So for this problem, the reason why there are 2 electrons added to the reactants side is to balance out the total charge from the product side during the half reaction. The skeleton half reaction would be (Cl2 --> Cl-) so we would have to balance out the reaction by putting the coefficie...
- Thu Feb 02, 2017 10:50 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Thu Jan 26, 2017 11:55 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Fri Jan 20, 2017 10:29 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
- Wed Jan 11, 2017 2:31 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3008679
Re: Post All Chemistry Jokes Here
Q: What is the name of 007's Eskimo cousin?
A: Polar Bond.
A: Polar Bond.
- Mon Nov 14, 2016 2:32 pm
- Forum: Naming
- Topic: Prefixes in Naming Order [ENDORSED]
- Replies: 2
- Views: 651
Re: Prefixes in Naming Order [ENDORSED]
Prefixes do not take precedence in naming order for ligands. The ligand names should be in alphabetical order and the prefixes are used according to the number of that specific ligand.
- Wed Nov 09, 2016 2:37 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Difference between Q and K? [ENDORSED]
- Replies: 1
- Views: 471
Difference between Q and K? [ENDORSED]
What makes Q different from K? I know that Q is the reaction quotient and K is the equilibrium constant, but what situation would need to provide Q over K or maybe K over Q?
- Fri Nov 04, 2016 1:31 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Valence Electron Configuration
- Replies: 1
- Views: 496
Valence Electron Configuration
How do you know how to write out the valence electron configuration just based on the molecule. For example 02 from the course reader on page 109. I'm not exactly sure how they know how to write it out.
- Thu Oct 27, 2016 6:51 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionic Character [ENDORSED]
- Replies: 2
- Views: 2195
Re: Ionic Character [ENDORSED]
For each pair, determine which compound has bonds with greater ionic character. a) PH₃ or NH₃; b) SO₂ or NO₂; c) SF₆ or IF₅. In this case, since each one shares a similar set of atoms (i.e. H3 and 02 and F6) you would look at the placement of the other atom on the periodic table. The larger the size...
- Sat Oct 22, 2016 11:51 am
- Forum: Lewis Structures
- Topic: When are you supposed to know?
- Replies: 1
- Views: 467
When are you supposed to know?
When are you supposed to know when to draw a lewis structure like K+[Cl]- as opposed to one with bonds?
- Sat Oct 15, 2016 12:22 pm
- Forum: General Science Questions
- Topic: # of Molecules
- Replies: 3
- Views: 883
Re: # of Molecules
Yes, you would use avogadro's number in order to find it. So say you had the molecular formula C4H6, you would use the 4 mols of carbon x 6.022x10^23 molecules/mol which would give you the number of molecules.
- Fri Oct 07, 2016 11:33 pm
- Forum: Properties of Electrons
- Topic: Kinetic Energy of Electrons to moles? [ENDORSED]
- Replies: 1
- Views: 729
Kinetic Energy of Electrons to moles? [ENDORSED]
How do you find the kinetic energy per mole of electron? I know you use avogadro's number but I'm not entirely sure how to do it properly with units.
- Fri Sep 30, 2016 4:37 pm
- Forum: Photoelectric Effect
- Topic: Minor Rounding Detail Question
- Replies: 4
- Views: 965
Re: Minor Rounding Detail Question
I think this is more of a personal choice. Many periodic tables have different molar masses but regardless of what number you choose, if your calculations are accurate the end result is similar with a margin of error. I'd personally use 3.00*10^8 because it would make calculations easier, but there ...