Search found 9 matches
- Wed Mar 09, 2016 7:08 pm
- Forum: *Nucleophilic Substitution
- Topic: SN2 vs. electrophilic addition
- Replies: 1
- Views: 708
Re: SN2 vs. electrophilic addition
Electrophilic addition involves an electrophile being added to a molecule such as the H+ from HBr being added to CH3CHCH2 whereas Sn2 involves a nucleophile being added to a molecule such as OH- basically they're opposites of eachother.
- Mon Mar 07, 2016 4:48 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Winter 2012 Final Question 3
- Replies: 1
- Views: 371
Winter 2012 Final Question 3
In part (a) how do you determine which of the two metals is the anode and which is the cathode? And in part (d) how do you get n is equal to 6?
- Mon Feb 29, 2016 4:14 pm
- Forum: *Alkanes
- Topic: Naming alkanes
- Replies: 2
- Views: 288
Re: Naming alkanes
The correct answer would be 4-methyl-5-(1,1-dimethylethyl)-octane because methyl comes before methylethyl alphabetically
- Wed Feb 24, 2016 3:59 pm
- Forum: *Alkanes
- Topic: Naming Compounds (# and -)
- Replies: 1
- Views: 236
Re: Naming Compounds (# and -)
To answer your first question, it doesn't matter which way you draw it because if you think about it it would be the same you would just have the molecule turned around. The number really only matters for a location on the chain not from which side it belongs because four from the left would be four...
- Sun Feb 07, 2016 4:26 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: 2011 midterm #5
- Replies: 1
- Views: 239
Re: 2011 midterm #5
because free energy is what is given in the question
- Sat Jan 30, 2016 11:16 am
- Forum: Balancing Redox Reactions
- Topic: Oxidation States
- Replies: 8
- Views: 1032
Re: Oxidation States
I don't think so. I think he said they would be given to us on the test kind of like the bond enthalpies were given.
- Sat Jan 23, 2016 2:35 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: positive or negative values
- Replies: 1
- Views: 265
Re: positive or negative values
It usually depends on the wording of the question. For example, if heat is absorbed by the system q is positive and the reaction is endothermic but if heat is released then q is negative and the reaction is exothermic.
- Thu Jan 14, 2016 8:46 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Which can be exchanged: matter or energy?
- Replies: 4
- Views: 708
Re: Which can be exchanged: matter or energy?
In a closed system, energy can be exchanged but matter cannot. This is different than an open system, in which both matter and energy can be exchanged, or in an isolated system, in which neither matter or energy can be exchanged.
- Wed Jan 06, 2016 9:58 pm
- Forum: Phase Changes & Related Calculations
- Topic: Hess's Law
- Replies: 8
- Views: 990
Re: Hess's Law
Dr. Lavelle said the method we used would depend on the information given to us in the problem.