If H2O is water, and H2O2 is peroxide, what is H2O4?
Drinking
Search found 22 matches
- Sun Mar 19, 2017 11:06 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3592908
- Sat Mar 18, 2017 5:11 pm
- Forum: *Cycloalkenes
- Topic: Question about 1,6-dichlorocyclohexene
- Replies: 1
- Views: 1491
Question about 1,6-dichlorocyclohexene
On page 102 of the course reader, I'm confused why we wouldn't name it 1,6-dichloro-1-cyclohexene. In other organic molecules, we separate the substituent from the main carbon chain.
- Sun Mar 12, 2017 11:13 pm
- Forum: *Electrophilic Addition
- Topic: Transition State Question
- Replies: 1
- Views: 1365
Transition State Question
In regards to transition states, I'm a bit confused on to what exactly happens per step. For example, in the electrophilic addition reaction on page 85 between Cholesterol and HBr, he first transition state describes the breaking of the double bond, the formation of a bond to H, and the breaking of ...
- Mon Mar 06, 2017 5:52 pm
- Forum: *Cycloalkenes
- Topic: Tert-Butyl vs Isobutyl
- Replies: 1
- Views: 730
Tert-Butyl vs Isobutyl
On page 96 of the course reader, there is a butyl substituent on the cyclohexane base. I was wondering why it is called tert-butyl instead of isobutyl. I know that the neo- prefix is only for 5 carbons and up, but I thought iso- was used for 4 carbons and down.
- Sun Mar 05, 2017 10:15 pm
- Forum: *Organic Reaction Mechanisms in General
- Topic: Dipole Moment Question
- Replies: 1
- Views: 824
Dipole Moment Question
In a dipole moment collision between for example, C2Cl4 and Br2 in the course reader, one of the Br becomes slightly positive due to the fact that there is electron repulsion from the nucleophile pi-bond of the carbons in C2Cl4, causing a dipole moment in Br2. However, due to the fact that one Br be...
- Sun Feb 26, 2017 11:59 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3592908
Re: Post All Chemistry Jokes Here
When the chemical kinetics specialist is asked why he ran slowly, his reply was “I always wanted to be the significant rate determining step."
- Sun Feb 19, 2017 9:54 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Difference between Delta H and q?
- Replies: 3
- Views: 69870
Difference between Delta H and q?
I'm a little confused as to the difference between the two, as they both have to do with heat.
- Sun Feb 12, 2017 10:52 pm
- Forum: Balancing Redox Reactions
- Topic: H20, HO-, and H+ When Balancing
- Replies: 1
- Views: 522
Re: H20, HO-, and H+ When Balancing
In an acidic solution: 1. Balance all non-O/H atoms. 2. Balance O atoms with H2O. 3. Balance H+ atoms with H+. In a basic solution: 1. Balance all non-O/H atoms. 2. Balance O atoms with H2O. 3. Balance H+ atoms with H+. 4. Neutralize H+ atoms with OH- to create H2O and add to both sides equally (the...
- Sun Feb 05, 2017 10:35 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Purpose of Hydrogen Electrode
- Replies: 1
- Views: 470
Purpose of Hydrogen Electrode
I understand that the galvanic cell changes chemical energy to electrical energy with an anode and cathode; however, I am confused with the purpose of the hydrogen electrode. Don't we normally measure the e- transfer of the system with normal anode/cathodes?
- Sun Jan 29, 2017 9:12 pm
- Forum: Calculating Work of Expansion
- Topic: Reversible vs Irreversible Expansion
- Replies: 1
- Views: 469
Reversible vs Irreversible Expansion
I'm a little confused with what a reversible expansion is. I understand how to do the equations, but conceptually I'm not sure what it means to expand reversibly.
- Tue Jan 17, 2017 12:16 pm
- Forum: Phase Changes & Related Calculations
- Topic: Phase Change Question
- Replies: 1
- Views: 491
Phase Change Question
In the Phase Change Diagram, the length of the s&l is shorter than the length of l&g. Why does it take more energy to break the bond from liquid to gas than from solid to liquid?
- Sat Dec 03, 2016 9:35 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Confusion with n, l, ml, ms.
- Replies: 2
- Views: 1506
Confusion with n, l, ml, ms.
On the midterm there was a question that asked how many elements have valence electrons with the quantum numbers n=2 and l=1. Looking on the table, there are 6 elements that fulfill that requirement; however, what if it said n=2 and l=0? Boron, carbon, nitrogen, oxygen, fluorine, and neon all have v...
- Sun Nov 27, 2016 9:09 pm
- Forum: Polyprotic Acids & Bases
- Topic: Protonation Question
- Replies: 1
- Views: 746
Protonation Question
Regarding Polyprotic Acids/bases, do you always assume that they have 2 protonations? I understand that the 3rd protonation is extremely hard because it's harder to lose a H+ ion from a negatively charged ion.
- Sun Nov 20, 2016 8:52 pm
- Forum: Lewis Acids & Bases
- Topic: Lewis Acids & Bases vs Bronsted Acids & Bases
- Replies: 2
- Views: 814
Re: Lewis Acids & Bases vs Bronsted Acids & Bases
Lewis Acid/Base: An acid accepts electrons, a base donates an electron. Bronsted Acid/Base: An acid donates a proton (H+ ion), a base accepts a proton. I'm familiar with these definitions, and I hope this helps. I know that it's possible for a reaction to be a Lewis acid/base reaction and not a Bron...
- Sun Nov 13, 2016 11:51 pm
- Forum: Sigma & Pi Bonds
- Topic: orbitals used in bonding
- Replies: 1
- Views: 844
Re: orbitals used in bonding
With what you've said, I would agree that oxygen and carbon would would have a pi(O2p, C2p) due to the fact that both atoms have 3 areas of electron density and therefore reserve the last orbital for the pi bond. If this is wrong, someone please let me know!
- Sun Nov 13, 2016 11:44 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Antibonding
- Replies: 1
- Views: 426
Antibonding
So I understand that antibonding is when two atomic orbitals are out of phase, but what does that really mean - and can someone also explain the meaning of it in the MO diagram?
- Sun Nov 06, 2016 5:50 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Definition of a Ligand [ENDORSED]
- Replies: 3
- Views: 961
Definition of a Ligand [ENDORSED]
I'm a bit confused on what a ligand is. In the diagram that Dr. Lavelle drew in class, there was 2 chlorine and 4 water molecules bound to a nickel atom. Are the water molecules also considered ligands, as they are an electron donor? In addition, regarding ligand bonding sites, does the naming of &q...
- Sun Oct 30, 2016 11:05 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Questions about orbitals? [ENDORSED]
- Replies: 1
- Views: 519
Questions about orbitals? [ENDORSED]
I'm a little confused about the orientation of orbitals. When atoms have more than one shell of, for example p orbitals, does it have the two lobes more than once at the same time?
- Fri Oct 21, 2016 11:27 pm
- Forum: Dipole Moments
- Topic: Do Dipole Moments affect Bond Strength?
- Replies: 2
- Views: 3894
Do Dipole Moments affect Bond Strength?
I understand that the width of an atom, # of bonds, and # of lone pairs can affect the strength of a bond; however, does the difference in electronegativity affect the strength of a bond as well, as it increases the ionic character of a bond?
- Sun Oct 16, 2016 7:30 pm
- Forum: Ionic & Covalent Bonds
- Topic: Ionic Radius
- Replies: 2
- Views: 577
Re: Ionic Radius
Hi Catherine, I did some research because I was confused with the same concept. What I found from a website said: Unlike a ball, an atom doesn't have a fixed radius. The radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that dist...
- Fri Oct 07, 2016 4:48 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Orbitals [ENDORSED]
- Replies: 9
- Views: 1849
Re: Orbitals [ENDORSED]
Can someone please clarify the statement mentioned in lecture that electrons are the orbitals? I’m a bit confused because it was also mentioned electrons are in the orbitals. In a slightly different perspective, I think what he meant by "electrons are the orbitals" is the fact that the be...
- Fri Sep 30, 2016 11:55 pm
- Forum: Student Social/Study Group
- Topic: Hedrick Summit Study Group Chem 14A
- Replies: 29
- Views: 4248
Re: Hedrick Summit Study Group Chem 14A
Hi everyone!
I'd love to work in the Hedrick Hall Fireside Lounge. When is a good time for you guys? I'm free most nights next week!
Please let me know if someone is interested!
I'd love to work in the Hedrick Hall Fireside Lounge. When is a good time for you guys? I'm free most nights next week!
Please let me know if someone is interested!