Search found 24 matches

by Nicole Filbert 1D
Sat Mar 12, 2016 6:35 pm
Forum: *Chem3D
Topic: 3D Conformations
Replies: 1
Views: 592

3D Conformations

If asked on the final to draw the most stable conformation or the boat conformation, do we have to draw it in 3D with a small shading part?
by Nicole Filbert 1D
Fri Mar 11, 2016 5:39 pm
Forum: Calculating Work of Expansion
Topic: Systems Under Constant Pressure
Replies: 1
Views: 251

Systems Under Constant Pressure

When solving thermodynamic problems, does constant pressure mean an adiabatic system (q=0)?
by Nicole Filbert 1D
Tue Mar 01, 2016 8:57 pm
Forum: *Alkanes
Topic: Tert vs. neo
Replies: 1
Views: 284

Tert vs. neo

What is the difference between tert- and neo-?
by Nicole Filbert 1D
Fri Feb 26, 2016 3:39 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2016
Replies: 48
Views: 18916

Re: Quiz 3 Winter 2016

When being asked to name a compound, are we going to have to give the IUPAC and common name? Or, is just the IUPAC name okay? (For the final also?)
by Nicole Filbert 1D
Tue Feb 16, 2016 2:45 pm
Forum: First Order Reactions
Topic: Rate Constant
Replies: 1
Views: 302

Rate Constant

So for the rate constant of a first order reaction will the slope always turn out negative and then you k is the negative of the slope? What if the slope is positive would you still place a negative in front to get k? Does this only refer to first order reactions?
by Nicole Filbert 1D
Sun Feb 14, 2016 1:00 am
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Mechanism
Replies: 1
Views: 252

Mechanism

So what exactly is a mechanism? Is it just the way that you split the reaction into elementary steps?
by Nicole Filbert 1D
Wed Feb 03, 2016 9:17 pm
Forum: Balancing Redox Reactions
Topic: Oxidizing/Reducing Agent
Replies: 1
Views: 328

Oxidizing/Reducing Agent

Is the oxidizing agent the same as the one that is being oxidized? Same for reducing agents?
by Nicole Filbert 1D
Tue Jan 26, 2016 7:27 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: dG=-RTlnK
Replies: 1
Views: 634

dG=-RTlnK

Will this equation be on quiz number one?
by Nicole Filbert 1D
Mon Jan 25, 2016 9:15 pm
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: Residual Entropy
Replies: 5
Views: 1068

Residual Entropy

What is residual entropy? How is it different from normal entropy and how do you calculate it?
For example HW 9.75, where did Avogadro's number come from?
by Nicole Filbert 1D
Sun Jan 24, 2016 11:58 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Quiz #1
Replies: 1
Views: 276

Quiz #1

It seems like we are almost done with chapter 9 in the course reader, and Lavelle said up to the end of Friday's lecture, which was the start of Gibbs Free Energy, will be on the quiz. So when reading chapter 9 in the book, how much of the reading (sections) on Gibbs free energy will be on the quiz?
by Nicole Filbert 1D
Sun Jan 17, 2016 5:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7826
Views: 1086574

Re: Chemistry Jokes

Q: Sulfur and Oxygen are best friends, but they lived far from each other. How did oxygen chat with his friend?

A: He used his Sulfone
by Nicole Filbert 1D
Sun Jan 10, 2016 3:41 pm
Forum: Phase Changes & Related Calculations
Topic: Phase Change Picture
Replies: 1
Views: 344

Phase Change Picture

Hi guys :) so I just wanted to add a link for a phase change graph. I thought it was pretty cool cause it has a few more details and is a bit more clear than the picture in the course reader (or if you do not have the course reader). So, here's the link: http://mrzimmerman.org/New%20Folder/HW/phases...
by Nicole Filbert 1D
Tue Dec 01, 2015 8:18 pm
Forum: Polyprotic Acids & Bases
Topic: HW # 12.79
Replies: 1
Views: 382

HW # 12.79

In the solutions manual, it says that the initial concentrations of HSO4- and H3O+ are 0.15 mol. How do we know that it was fully dissociated to the H3O+ rather than the other compound?
by Nicole Filbert 1D
Tue Dec 01, 2015 7:35 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Rounding off
Replies: 2
Views: 393

Re: Rounding off

Corresponding to what Phu Mai 4G said, it can also be disregarded if x is less than 5% of the initial value.
by Nicole Filbert 1D
Mon Nov 23, 2015 9:11 pm
Forum: Naming
Topic: Using the word ion
Replies: 2
Views: 472

Re: Using the word ion

The phrase ion is used at the end when you are naming an ion complex which like Rachel said is when the complex has a negative or positive charge. When it is just a coordination compound (neutral charge), you do not say ion after you write out the name.
by Nicole Filbert 1D
Wed Nov 18, 2015 5:29 pm
Forum: Naming
Topic: Order of ligands
Replies: 2
Views: 446

Re: Order of ligands

Within the coordination sphere, you write the transition metal first. Afterwards, you write the anionic ligands followed by neutral ligands.
by Nicole Filbert 1D
Tue Nov 10, 2015 3:42 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Calculating the value of K
Replies: 1
Views: 346

Calculating the value of K

This is a question from Chapter 11 homework page 457 problem 11.37B. So it originally gives you the equation N2 + 3H2 -> 2NH3 and a K that is equal to 41 In part B, it asks you to find K for (1/2)N2 + (3/2)H2 -> NH3 I noticed that each coefficient had decreased by half, but the solution manual says ...
by Nicole Filbert 1D
Fri Nov 06, 2015 12:05 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Formation Constant vs. Equilibrium constant
Replies: 2
Views: 4056

Formation Constant vs. Equilibrium constant

What is the difference between a formation constant and an equilibrium constant? Or are they the same thing? The textbook and course reader each use a different one.
by Nicole Filbert 1D
Tue Oct 27, 2015 3:13 pm
Forum: Hybridization
Topic: Coefficients for Hybridization
Replies: 1
Views: 285

Coefficients for Hybridization

When I am predicting the type of hybrid orbital for lets say H3O+, can I just say sp^3? Or do I have to say 2sp^3 because O is in the second period of the period table?
by Nicole Filbert 1D
Wed Oct 21, 2015 6:30 pm
Forum: Resonance Structures
Topic: Resonance Arrows
Replies: 3
Views: 482

Resonance Arrows

I know when you draw a resonance arrow between two structures it is just a double headed arrow, but how do you draw them if there are three structures? Is there a special way like almost forming a triangle between the three structures? Or, can you just draw them all side by side in no order?
by Nicole Filbert 1D
Thu Oct 15, 2015 2:24 pm
Forum: Lewis Structures
Topic: Exceptions to the Octet Rule
Replies: 2
Views: 357

Exceptions to the Octet Rule

So I know that H, Li,and Be are exceptions to the octet rule but is He also? The first lecture we began discussing lewis structures I remember Lavelle saying "H, He, Li,and Be," but the course reader only says three? Then two lectures later, he said it again... so yea? is He considered an ...
by Nicole Filbert 1D
Sun Oct 11, 2015 10:13 pm
Forum: Photoelectric Effect
Topic: 2013 Fall Prep Quiz 1 Question 10
Replies: 1
Views: 409

2013 Fall Prep Quiz 1 Question 10

Okay, so I understood how to do the problem it was just once I reached the answer I got a different answer. I was not off by much but enough to get the answer wrong. It was just somewhere my sig figs messed up and resulted in the wrong number. After calculating the E=hv, I got 1.02 x 10^-9. I guess ...
by Nicole Filbert 1D
Thu Oct 08, 2015 9:52 pm
Forum: Einstein Equation
Topic: Work Function
Replies: 1
Views: 509

Work Function

In problems that give you the work function value, how am I able to tell whether there is an amount for kinetic energy or not (0)?
by Nicole Filbert 1D
Thu Oct 01, 2015 7:07 pm
Forum: Properties of Light
Topic: Question: Wave Model vs. Photon Model of Light
Replies: 7
Views: 2092

Re: Question: Wave Model vs. Photon Model of Light

I believe the wave model demonstrated that light had only contained wave properties. Therefore, it did not involve the idea of quanta. The photoelectric effect, like Neil said, proved that light has wave and particle properties. It showed that if light had only wave properties, then electrons should...

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