Search found 11 matches

by Calderon_Humberto_3E
Mon Mar 20, 2017 12:29 am
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Bond Angles of equatorials and axials
Replies: 3
Views: 620

Re: Bond Angles of equatorials and axials

What are the bond angles for a ethane and butane when they are both in staggered or in eclipsed conformation?
by Calderon_Humberto_3E
Mon Mar 13, 2017 11:12 am
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Naming Cis or Trans
Replies: 1
Views: 275

Re: Naming Cis or Trans

On the double bond, if the two groups are on the same side of the bond then it is a cis isomer and if the two groups are not in the same side of the bond then it is a trans isomer.
by Calderon_Humberto_3E
Sun Mar 05, 2017 8:05 pm
Forum: *Alkanes
Topic: Naming Structures
Replies: 2
Views: 225

Re: Naming Structures

We do write each substituent in alphabetical order first and then do the number order when naming the structures.
by Calderon_Humberto_3E
Sun Feb 26, 2017 5:55 pm
Forum: *Electrophiles
Topic: AlCl3 as an electrophile
Replies: 3
Views: 364

Re: AlCl3 as an electrophile

What you can do is first draw out the lewis dot structure of AlCl3. As you can see the molecule is neutral and has no lone pairs which makes it not a nucleophile. Also is missing 2 atoms in the aluminum to make a stable octlet which makes it try to gain electrons in order to become stable.
by Calderon_Humberto_3E
Sun Feb 19, 2017 8:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15124

Quiz 2

What will the quiz cover? Is it the content of the midterm till now or is it cummalative since day one?
by Calderon_Humberto_3E
Mon Feb 06, 2017 4:57 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: ∆G = -nFE
Replies: 4
Views: 330

Re: ∆G = -nFE

N stands for the number of moles given(transferred in a reaction). N would usually be given to you, I believe.
by Calderon_Humberto_3E
Sun Feb 05, 2017 10:06 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Anode/Cathode
Replies: 4
Views: 400

Re: Anode/Cathode

Why do we always have to make the lower concentration the P?
by Calderon_Humberto_3E
Sun Jan 29, 2017 8:15 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs free energy dependence on enthalpy and entropy
Replies: 2
Views: 204

Re: Gibbs free energy dependence on enthalpy and entropy

So when G is minimum why can't the system no longer change?
by Calderon_Humberto_3E
Sun Jan 22, 2017 9:51 pm
Forum: Phase Changes & Related Calculations
Topic: Delta U
Replies: 1
Views: 196

Re: Delta U

Gas expands when delta U is equal to zero because of the increase of entropy. The increase of entropy happens due to a spontaneous reaction between the gas atoms.
by Calderon_Humberto_3E
Sun Jan 15, 2017 10:56 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat Capacity
Replies: 8
Views: 434

Re: Heat Capacity

Could you elaborate more on why heating causes it to go on a faster rate?
by Calderon_Humberto_3E
Sun Jan 15, 2017 10:55 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Thermodynamic systems
Replies: 2
Views: 278

Thermodynamic systems

What is the difference between the closed/isolated/ open systems?How do you change energy in anyone of these systems?

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