Search found 12 matches

by Jasmine_Esparza_2A
Sun Mar 12, 2017 5:07 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: High Energy
Replies: 1
Views: 289

Re: High Energy

An anti-Newman formation is when the two largest functional groups of each carbon are 180 degrees from each other. A gauche formation is when the two largest functional groups of each carbon are 60 degrees from each other.

Both these formation are variations of staggered.
by Jasmine_Esparza_2A
Sun Mar 12, 2017 5:01 pm
Forum: *Ethers
Topic: Ether Naming
Replies: 3
Views: 933

Ether Naming

I'm still somewhat confused on the ether naming. Is it possible if someone can give and complete an example?
by Jasmine_Esparza_2A
Sun Feb 26, 2017 9:08 pm
Forum: *Electrophiles
Topic: Showing Electron Arrangement
Replies: 1
Views: 244

Showing Electron Arrangement

I noticed in the course reader on page 83 that there is a difference in the arrows used to show the movement of one electron and two electrons.
Is this important? On the quiz will we need to strictly use a one sided arrow to show only one electron moving?
by Jasmine_Esparza_2A
Sun Feb 19, 2017 9:14 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: First order, second order reactions [ENDORSED]
Replies: 6
Views: 990

Re: First order, second order reactions [ENDORSED]

We are tested on everything up to page 73 in the course reader. This page ends with "Pre-equilibrium approach".

EmilyLeibovitch2E wrote:Will we ever be asked to do a third or forth order reaction even though it wasn't covered in the course reader?
by Jasmine_Esparza_2A
Sun Feb 12, 2017 6:17 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: When to add H+ in cell diagram?
Replies: 1
Views: 352

When to add H+ in cell diagram?

On page 144 in the course reader, part C says to write the cell diagram and it includes H+ in the diagram.

How do we know when to use H+ in the diagram?
by Jasmine_Esparza_2A
Fri Feb 03, 2017 7:13 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8047
Views: 1412825

Re: Post All Chemistry Jokes Here

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by Jasmine_Esparza_2A
Fri Feb 03, 2017 7:10 pm
Forum: Balancing Redox Reactions
Topic: How do I find oxidation number?
Replies: 2
Views: 411

Re: How do I find oxidation number?

Hi I had a similar question. My PLF gave me an answer with specific steps. 1. The oxidation state of a lone element or free state is zero. For example if you see a long element such as Cu, Zn, Ag. The O.S. will be zero. There are 8 diatomic elements to remember who's O.S. is zero as well: H2, O2, N2...
by Jasmine_Esparza_2A
Fri Jan 27, 2017 6:01 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Energy Extensive or Intensive?
Replies: 2
Views: 19138

Energy Extensive or Intensive?

I was looking at an old quiz and it asked if energy was extensive or intensive.
What is the difference between the two?
by Jasmine_Esparza_2A
Thu Jan 26, 2017 5:56 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs Free Energy Problem on pg 39
Replies: 2
Views: 295

Gibbs Free Energy Problem on pg 39

On page 39 in the course reader, there is an example problem Lavelle went over. It says that deltaG is equal to zero.

Why does the delta G equal to zero?
by Jasmine_Esparza_2A
Wed Jan 18, 2017 2:43 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Ch 8. Q.1 [ENDORSED]
Replies: 2
Views: 447

Re: Ch 8. Q.1 [ENDORSED]

Hi, I'm curious as to why d) gasoline burning in an automobile engine is an open system rather than closed? Since the engine is within the car, right? An open system is defined as a system where matter and energy can transfer with the surrounds. SO specifically with this question, because you are a...
by Jasmine_Esparza_2A
Wed Jan 18, 2017 2:37 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Work Integral Negative? [ENDORSED]
Replies: 2
Views: 388

Work Integral Negative? [ENDORSED]

Can someone explain why the formula in lecture for work is negative?
The formula was:
by Jasmine_Esparza_2A
Fri Jan 13, 2017 12:51 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond Enthalpies
Replies: 7
Views: 528

Re: Bond Enthalpies

In using this method, when a bond is formed do we write it as negative energy, and when a bond is broken, we write it as positive energy to add them up? When a bond a formed, energy is released so that will be positive energy. When the bond is broken, energy is used, making it negative. To find the...

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