Search found 12 matches

by Joann Hernandez 2F
Thu Mar 10, 2016 5:12 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Winter 2012 Q3D
Replies: 1
Views: 152

Winter 2012 Q3D

Where did 0.025693 V come from?
by Joann Hernandez 2F
Mon Feb 29, 2016 5:56 pm
Forum: *Alkanes
Topic: priority in naming
Replies: 1
Views: 198

priority in naming

Can someone tell me the order in highest priority for naming hydrocarbons? For example in lecture Dr. Lavelle said that double bonds have highest priority and then functional groups and then substituents but then you have to take the highest atomic # and the alphabet into account. Can someone organi...
by Joann Hernandez 2F
Wed Feb 24, 2016 6:45 pm
Forum: *Alkanes
Topic: Common names vs. (iso and neo)
Replies: 1
Views: 221

Common names vs. (iso and neo)

For the quiz/exam, is it preferred to name the substituents by the iso and neo prefixes? Will we have points deducted if we stick to the common names with the numbers included?
by Joann Hernandez 2F
Sun Feb 21, 2016 11:41 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Double/Triple Bonds
Replies: 1
Views: 269

Double/Triple Bonds

In a situation where a bond moves from a single to a double or triple bond, how do we draw that using the double sided and/or single sided arrows?
by Joann Hernandez 2F
Sun Feb 21, 2016 11:34 pm
Forum: *Organic Reaction Mechanisms in General
Topic: Full arrows vs. Half arrows
Replies: 1
Views: 361

Re: Full arrows vs. Half arrows

I would say a good example for half arrows is when you're dealing with radicals with a single electron that can donate or bond with another radical. It can also work well when you're trying to bond H atoms as they are just a single electron donor.
by Joann Hernandez 2F
Sun Feb 07, 2016 4:09 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: 2011 midterm Q6 B
Replies: 1
Views: 197

2011 midterm Q6 B

When writing the final balanced equation, why did we have to multiply 2 to both Rb and Rb+? is it because of the electrons when you put them together?
by Joann Hernandez 2F
Thu Jan 21, 2016 10:49 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calculating final temperature of a substance
Replies: 1
Views: 322

Calculating final temperature of a substance

When you are given the mass at a certain temperature for substance A, then mass at a different temperature for substance B, are those temperatures correlated to each other and work for both substances (as T initial and T final for both?) If not, how do I find the final temperature of substance B??
by Joann Hernandez 2F
Thu Jan 21, 2016 10:45 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calculating final temperature of a substance
Replies: 1
Views: 254

Calculating final temperature of a substance

When you are given the mass at a certain temperature for substance A, then mass at a different temperature for substance B, are those temperatures correlated to each other and work for both substances (as T initial and T final for both?) If not, how do I find the final temperature of substance B??
by Joann Hernandez 2F
Thu Jan 21, 2016 6:35 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Quiz1 Prep Question 11
Replies: 1
Views: 215

Quiz1 Prep Question 11

Given in step 1, it expands adiabatically from 1.00 L to 2.56 L at 1.00 atm.. in step 2, it releases 73 J of heat at 1.00 atm. For Step 2 in the question, It asks to find the final volume of the system as is returns to the original internal energy. The answer key says change in Volume = -2.28 L and ...
by Joann Hernandez 2F
Sat Jan 16, 2016 11:50 am
Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
Topic: Degeneracy
Replies: 1
Views: 338

Degeneracy

How do you determine or calculate the number of arrangements?
by Joann Hernandez 2F
Sun Nov 22, 2015 6:53 pm
Forum: Quantum Numbers and The H-Atom
Topic: Video: quantum numbers
Replies: 1
Views: 350

Video: quantum numbers

trim.49F43F69-D25E-44ED-84C5-1BDC4D9F88CA.MOV [ 1.51 MiB | Viewed 345 times ]

https://youtu.be/yl97-nwoXzs
Quick video about quantum numbers and the amount of electrons found in each quantum level.
by Joann Hernandez 2F
Wed Oct 21, 2015 2:23 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Cis and Trans Dichloroethene
Replies: 3
Views: 343

Cis and Trans Dichloroethene

How do we determine the position in which the chlorine atoms are placed? How do we distinguish when they should be on opposite sides of the double bond or when they're on the same side of the double bond?

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