Search found 23 matches

by Alex Uy 2D
Sun Mar 19, 2017 1:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Switching Chem 14C discussion
Replies: 7
Views: 737

Re: Switching Chem 14C discussion

Hi, I am trying to switch my chem 14C 11am-11:50am discussion for lecture 1 with someone else please help it conflicts with one of my other classes. Hey I was hoping to switch discussions too. Mine is on Friday after lecture at 9:00 am. Even if it isn't mandatory to attend our own sections like oth...
by Alex Uy 2D
Thu Mar 16, 2017 8:05 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Practice Problems
Replies: 16
Views: 1758

Re: Practice Problems

Does it matter if the second molecule in the first problem set has the two methyl groups on the same side and the hydrogens on the same side as long as the two highest priority groups are anti to each other?
by Alex Uy 2D
Thu Mar 16, 2017 3:04 pm
Forum: Administrative Questions and Class Announcements
Topic: Switching Chem 14C discussion
Replies: 7
Views: 737

Switching Chem 14C discussion

Hi, I am trying to switch my chem 14C 11am-11:50am discussion for lecture 1 with someone else please help it conflicts with one of my other classes.
by Alex Uy 2D
Tue Mar 14, 2017 8:08 pm
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 7757

Re: Naming [ENDORSED]

If i am trying to add -oxy onto the end of isopropyl, would it become or isopropylanoxy or just isopropyloxy?
by Alex Uy 2D
Wed Mar 08, 2017 7:26 pm
Forum: General Science Questions
Topic: UA
Replies: 2
Views: 627

UA

How would you go about applying (?) to be a UA, or do you have to be selected?
by Alex Uy 2D
Sun Mar 05, 2017 11:03 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalyst
Replies: 16
Views: 1207

Re: Catalyst

If a catalyst changes the pathway for the energy, does that mean the reaction is doing less work?
by Alex Uy 2D
Fri Feb 24, 2017 8:42 pm
Forum: General Science Questions
Topic: Entropy Question
Replies: 2
Views: 455

Re: Entropy Question

entropy is disorder
by Alex Uy 2D
Tue Feb 14, 2017 9:40 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: HW Ch.8 question 8.25
Replies: 4
Views: 442

Re: HW Ch.8 question 8.25

In the solutions manual to this, they say that q reaction + q calorimeter = 0. Is that something you just have to know? or where in the problem does it suggest that the change in internal energy is 0?
by Alex Uy 2D
Wed Feb 08, 2017 2:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13381

Re: Quiz 1 Preparation Answers

This is about actual quiz 1... It's about the last two parts of the questions about heat gained and lost. During the winter, the water tank of a locomotive contains 100.0 x10^3 g of superheated steam at 155.0 C which cools to liquid water at 5 C. Assume no steam leaves the tank. b) Calculate the hea...
by Alex Uy 2D
Fri Feb 03, 2017 7:07 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 81
Views: 43696

Re: Reading the textbook [ENDORSED]

I think reading the textbook is helpful after going to lecture because sometimes I leave lecture with a lot of unanswered questions and the textbook helps expand on details. It does get to be quite confusing sometimes though. Going to the peer facilitated learning sessions are also very helpful to m...
by Alex Uy 2D
Mon Jan 23, 2017 5:01 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: Irreversible vs. Reversible
Replies: 1
Views: 179

Irreversible vs. Reversible

Is there another way in which we can distinguish between irreversible and reversible reactions other than constant temperature? Is there anything actually "reversible" about a reaction that has constant temperature or is that some arbitrary name?
by Alex Uy 2D
Thu Jan 19, 2017 4:42 pm
Forum: Administrative Questions and Class Announcements
Topic: Organic Chemistry Workbook
Replies: 2
Views: 309

Organic Chemistry Workbook

Will we be using the organic chemistry workbook at all in Chem 14B or will we have to bring it to class at all or should we be studying from it on our own time?
by Alex Uy 2D
Wed Jan 11, 2017 11:59 am
Forum: Phase Changes & Related Calculations
Topic: Understanding why enthalpy is a state function
Replies: 4
Views: 1413

Re: Understanding why enthalpy is a state function

Could someone explain why enthalpy (which I understand to be heat at a constant pressure) is a state function while just heat is not a state function? Why does having a constant pressure suddenly make heat become enthalpy and therefore a state function?
by Alex Uy 2D
Tue Nov 29, 2016 11:18 pm
Forum: Bronsted Acids & Bases
Topic: Corrosive Properties
Replies: 1
Views: 304

Corrosive Properties

What makes strong acids and bases corrosive?
by Alex Uy 2D
Wed Nov 16, 2016 5:32 pm
Forum: Lewis Acids & Bases
Topic: Lewis vs. Bronsted acids/bases
Replies: 5
Views: 3145

Re: Lewis vs. Bronsted acids/bases

How does an atom donate a proton? We have been learning about electrons being shared and electronegativity, but I thought a proton is part of the nucleus of an atom. How does a proton separate from an atom?
by Alex Uy 2D
Mon Nov 07, 2016 7:43 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885763

Re: Post All Chemistry Jokes Here

What did the electric dipole moment say when it walked out the door?

goo-debye!
by Alex Uy 2D
Thu Nov 03, 2016 4:05 pm
Forum: Administrative Questions and Class Announcements
Topic: Thanksgiving Week
Replies: 2
Views: 500

Re: Thanksgiving Week

Will we have class on Wednesday, November 23?
by Alex Uy 2D
Sun Oct 30, 2016 9:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem 14A Midterm Fall 2016 Rooms & Review Sessions
Replies: 16
Views: 7532

Re: Chem 14A Midterm Fall 2016 Rooms & Review Sessions

Are we allowed to leave if we finish the midterm early?
by Alex Uy 2D
Thu Oct 27, 2016 6:48 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885763

Re: Post All Chemistry Jokes Here

I hated learning about electrons...I got so bohr'd
by Alex Uy 2D
Mon Oct 17, 2016 1:36 pm
Forum: General Science Questions
Topic: A Very Hypothetical Question
Replies: 1
Views: 722

A Very Hypothetical Question

What would happen if you made a periodic table out of cube-shaped bricks, where each brick was made of the corresponding element? (Assuming that you wouldn't die in the process)
by Alex Uy 2D
Fri Oct 14, 2016 3:29 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7348
Views: 885763

Re: Post All Chemistry Jokes Here

I've got my ion you...
by Alex Uy 2D
Fri Oct 07, 2016 2:19 pm
Forum: General Science Questions
Topic: Chemical Properties of Spices
Replies: 1
Views: 725

Chemical Properties of Spices

What makes something spicy? For example, in a pepper what is the actual physical/chemical property that makes us experience "spiciness"? Is it a specific molecule or does it depend on the structure?
by Alex Uy 2D
Wed Sep 28, 2016 9:06 pm
Forum: General Science Questions
Topic: Mass of an electron
Replies: 3
Views: 757

Mass of an electron

On page 43 of the course reader it talks about the photoelectric effect and the equation for kinetic energy (Ek=1/2 me-*ve-). I was wondering if the mass of an electron is the same no matter what element is given.

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