Search found 10 matches
- Fri Mar 17, 2017 2:03 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 2016 final question 3B
- Replies: 4
- Views: 730
- Fri Mar 17, 2017 1:01 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 2016 final question 3B
- Replies: 4
- Views: 730
Re: 2016 final question 3B
The Cathode is always going to have the higher reduction half reaction value to make the total cell potential as high as possible because we calculate that through the equation Cathode potential - Anode Potential
- Fri Mar 17, 2017 12:58 am
- Forum: *Alkenes
- Topic: Alkenes as functional groups??
- Replies: 1
- Views: 1409
Alkenes as functional groups??
Hey all!
Just wondering whether we consider alkenes functional groups? Would the same go for alkynes?
Much appreciated!
Just wondering whether we consider alkenes functional groups? Would the same go for alkynes?
Much appreciated!
- Sun Mar 05, 2017 5:38 pm
- Forum: *Electrophilic Addition
- Topic: Reaction Profiles
- Replies: 2
- Views: 1409
Re: Reaction Profiles
The intermediate and especially transition states are significantly less stable than the products or reactants because they often lack neutral charges or full valence shells on all their atoms. Because they are less stable, they will have more energy, which is our activation energy.
- Sun Feb 26, 2017 6:45 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Determining k vs k'
- Replies: 3
- Views: 781
Re: Determining k vs k'
k is generally the forward rate constant with reactions going to products and k prime is generally the rate constant for the flipped reaction, where the original products are now going to the reactants.
- Mon Feb 20, 2017 3:09 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3922513
Re: Post All Chemistry Jokes Here
Q: Why can't you trust an enthalpy pirate?
A: Because he'll steal all your joules matey
A: Because he'll steal all your joules matey
- Mon Feb 06, 2017 12:43 pm
- Forum: Balancing Redox Reactions
- Topic: Chapter 14 Question 3
- Replies: 7
- Views: 1749
Re: Chapter 14 Question 3
Because the reaction is aqueous, it is taking place in water; therefore, the water will actually provide the mechanism to balance the half reactions and electron transfer. To balance the Oxygen in the half reactions, one must add H2O to the opposite side and to balance Hydrogen, one must add H+ to t...
- Sun Jan 29, 2017 4:03 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibb's Free Energy
- Replies: 2
- Views: 476
Re: Gibb's Free Energy
delta G (the change in gibb's free energy) = delta H of reaction - Temperature x delta S (entropy of reaction)
- Sun Jan 22, 2017 6:50 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Universe as a system [ENDORSED]
- Replies: 2
- Views: 582
Re: Universe as a system [ENDORSED]
The Universe might be expanding, but it is still an isolated system because it can neither gain nor lose both matter and energy. We can see this idea in the first law of thermodynamics that states energy can be transformed and transferred, but not gained or destroyed. Additionally, the expansion of ...
- Sun Jan 15, 2017 7:08 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bruincast
- Replies: 1
- Views: 441
Re: Bruincast
My iPhone version was also not working, but I think it will be up soon!