Search found 19 matches
- Sun Mar 12, 2017 11:46 pm
- Forum: *Nucleophiles
- Topic: Nucleophiles and Electronegativity
- Replies: 6
- Views: 5482
Re: Nucleophiles and Electronegativity
Do we need to have the more complex nucleophiles and electrophiles in chapter 4 (the ones drawn out in the first few pages of the chapter) of the organic course reader memorized? Or are those simply for reference?
- Sun Mar 05, 2017 10:42 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3043608
- Mon Feb 27, 2017 9:24 pm
- Forum: *Electrophilic Addition
- Topic: Electrophilic addition reaction (p. 84 CR)
- Replies: 1
- Views: 552
Electrophilic addition reaction (p. 84 CR)
On page 84 of the course reader, there is an example of a two step reaction where the bond between H-Br is broken. How do you know that the H bonds with the carbocation before the Br bonds?
- Sun Feb 26, 2017 1:31 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius plot vs. activation energy
- Replies: 3
- Views: 1108
Re: Arrhenius plot vs. activation energy
Since the slope is m=-Ea/R, the higher the activation energy, the steeper the line. There is a plot showing this on page 75 of the course reader.
- Wed Feb 15, 2017 1:29 pm
- Forum: Balancing Redox Reactions
- Topic: Balancing equations
- Replies: 10
- Views: 1693
Re: Balancing equations
I keep getting confused on when you need to switch the sign of the reduction potential. If the given half equation has already flipped the reduction potential so that it is negative, do you simply add together the reduction potentials or do you flip the reduction potential back, and then do cathode ...
- Sun Feb 12, 2017 9:12 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Homework 8 problems
- Replies: 1
- Views: 471
Re: Homework 8 problems
Yes, I'm having trouble with this one too. Pls help!!
- Fri Feb 10, 2017 12:17 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Molar Heat Capacity
- Replies: 2
- Views: 606
Re: Molar Heat Capacity
Does anyone know if we will always be given the molar heat capacities of ideal gases when we are trying to calculate heat? If not, would you mind explaining that Cp,m=(5/2)R thingy please
- Wed Feb 08, 2017 2:53 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Heating Curves
- Replies: 1
- Views: 564
Heating Curves
Is it necessary for us to understand heating curves? If so, can someone please explain to me what the heating curve is trying to show? I was looking at the one in the textbook in Chapter 8 (Box 8.1) and it was confusing me. (It's the one with "Differential Power" as the y-axis and "Te...
- Sun Feb 05, 2017 7:51 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Calorimeter Questions
- Replies: 3
- Views: 576
Re: Calorimeter Questions
Do we need to know how to do questions related to calibrating the calorimeter? If so, how do we do those? Do you just make the value of q negative?
- Sun Jan 29, 2017 10:29 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3043608
Re: Post All Chemistry Jokes Here
This cat is my hero
- Sun Jan 22, 2017 8:39 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3043608
Re: Post All Chemistry Jokes Here
The pickup lines are always the best
- Sun Jan 15, 2017 5:36 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Work of Expansion
- Replies: 1
- Views: 415
Work of Expansion
Can someone please explain work of expansion? I remember Professor Lavelle mentioning something about constant pressure and volume change, but I don't really understand.
- Sat Dec 03, 2016 11:10 pm
- Forum: Naming
- Topic: Polydentates
- Replies: 4
- Views: 968
Re: Polydentates
Does the name sulfato refer to both (SO4)2- and (OSO3)2-? I know for (NO2)2- there is a different name when the O is bonding to the transition metal instead of the N. Is sulfate like that as well?
- Sun Nov 27, 2016 11:40 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: MO adding/deleting e-
- Replies: 3
- Views: 820
Re: MO adding/deleting e-
In a homonuclear molecule does it matter to which atom you add the e-? For example, If the ion has 2e- should you distribute the electrons evenly with one e- to each atom, or does it not matter?
- Sun Nov 13, 2016 4:30 pm
- Forum: Student Social/Study Group
- Topic: Quiz 3
- Replies: 2
- Views: 932
Quiz 3
Does anyone know what material will be covered in Quiz 3? As in up to which lecture?
- Sun Oct 30, 2016 9:50 pm
- Forum: General Science Questions
- Topic: Naming Chemical Compounds
- Replies: 5
- Views: 1534
Re: Naming Chemical Compounds
Does anyone know if there is a good, comprehensive list of the all the polyatomics we should know?
- Fri Oct 21, 2016 7:42 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3043608
Re: Post All Chemistry Jokes Here
Where does the German chemistry teacher put the used batteries of an electrolytic experiment?
In the zinc. :)
In the zinc. :)
- Fri Oct 14, 2016 3:20 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3043608
Re: Post All Chemistry Jokes Here
What sharp object do you get when you combine potassium, nickel and iron?
--->KNiFe
--->KNiFe
- Fri Sep 30, 2016 5:10 pm
- Forum: General Science Questions
- Topic: Naming Chemical Compounds
- Replies: 5
- Views: 1534
Re: Naming Chemical Compounds
I find the Crash Course Chemistry to be very helpful when it comes to brushing up on old Chem topics! This one on nomenclature helped me with naming: https://www.khanacademy.org/partner-con ... menclature