Search found 59 matches

by Bryan Le 2K
Sat Mar 13, 2021 10:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem community points
Replies: 19
Views: 1513

Re: Chem community points

It is due Sunday, March 14 at midnight!
by Bryan Le 2K
Sat Mar 13, 2021 10:04 pm
Forum: Student Social/Study Group
Topic: How do you deal with burnout?
Replies: 144
Views: 19409

Re: How do you deal with burnout?

When I feel burnt out, I generally watch a show or talk with my friends to get my mind off school for a little. I just got to make sure I don't spend too much time relaxing.
by Bryan Le 2K
Sat Mar 13, 2021 10:00 pm
Forum: Student Social/Study Group
Topic: Spring Quarter
Replies: 60
Views: 3855

Re: Spring Quarter

I am taking chem 14c!
by Bryan Le 2K
Sat Mar 13, 2021 9:58 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Value of N
Replies: 24
Views: 1244

Re: Value of N

N is the number of electrons transfers. You can find them from the half reactions. They should be the same number.
by Bryan Le 2K
Sat Mar 13, 2021 9:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Bonus Q's
Replies: 7
Views: 500

Re: Final Bonus Q's

I believe it is worth 4 points!
by Bryan Le 2K
Sun Mar 07, 2021 3:19 pm
Forum: General Science Questions
Topic: The Final Countdown
Replies: 14
Views: 1273

Re: The Final Countdown

This quarter has been so busy for me. I can't wait until spring break and finally relax!
by Bryan Le 2K
Sat Mar 06, 2021 5:58 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: What was your favorite chem topic?
Replies: 137
Views: 12863

Re: What was your favorite chem topic?

I enjoy doing chemical equilibrium problems!
by Bryan Le 2K
Sat Mar 06, 2021 5:55 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Solids and Liquids?
Replies: 26
Views: 1579

Re: Solids and Liquids?

Only gases apply to this law! Make sure to check the reaction. I make this mistake a lot on exams and practice problems.
by Bryan Le 2K
Sat Mar 06, 2021 5:54 pm
Forum: Student Social/Study Group
Topic: What do you miss / What are you looking forward to?
Replies: 92
Views: 12234

Re: What do you miss / What are you looking forward to?

I am currently a sophomore and I really miss having late nights with my friends.
by Bryan Le 2K
Sat Mar 06, 2021 5:53 pm
Forum: Administrative Questions and Class Announcements
Topic: DAYLIGHT SAVINGS TIME!
Replies: 12
Views: 1488

Re: DAYLIGHT SAVINGS TIME!

Thanks for the reminder!! I totally forgot about this.
by Bryan Le 2K
Sat Mar 06, 2021 5:50 pm
Forum: Student Social/Study Group
Topic: 14B Final
Replies: 22
Views: 1115

Re: 14B Final

I think that the final will have more of topics covered after midterm 2 with a smaller amount covering the topics previously. I could be wrong though.
by Bryan Le 2K
Sat Mar 06, 2021 5:47 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Diamond vs. Graphite
Replies: 23
Views: 1156

Re: Diamond vs. Graphite

Yea, it is possible but it will take a very long time.
by Bryan Le 2K
Sat Mar 06, 2021 5:24 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Video Review
Replies: 8
Views: 519

Re: Video Review

Organic Chemistry Tutor has been a big help to me!
by Bryan Le 2K
Sat Mar 06, 2021 5:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Time
Replies: 47
Views: 2748

Re: Final Exam Time

The review session is on Saturday while the Final will be on Sunday at 9:30 am.
by Bryan Le 2K
Sat Mar 06, 2021 5:21 pm
Forum: Student Social/Study Group
Topic: Final
Replies: 63
Views: 4083

Re: Final

I would recommend going over all the topics and getting a good understanding of each topic. A good indicator of your understanding could be if you could explain/teach this topic to someone else. I would also recommend going the practice problems several times!
by Bryan Le 2K
Sun Feb 28, 2021 5:53 pm
Forum: Balancing Redox Reactions
Topic: Oxidation vs Reduction
Replies: 30
Views: 1433

Re: Oxidation vs Reduction

I use the acronym OIL RIG which stands for "Oxidation is loss, reduction is gain."
by Bryan Le 2K
Sun Feb 28, 2021 5:50 pm
Forum: *Free Energy of Activation vs Activation Energy
Topic: Temperature vs. activation energy
Replies: 33
Views: 2638

Re: Temperature vs. activation energy

When you increase the temperature, this results in more collisions between particles. This will lead to an increase in K.
by Bryan Le 2K
Sun Feb 28, 2021 5:43 pm
Forum: Student Social/Study Group
Topic: Fave food
Replies: 266
Views: 46392

Re: Fave food

I love poke and Korean Fried Chicken!
by Bryan Le 2K
Sun Feb 28, 2021 5:36 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Anode/Cathode
Replies: 45
Views: 1701

Re: Anode/Cathode

The anode is always on the left while the cathode is always going to be on the right. This order is really important to have for cell diagrams.
by Bryan Le 2K
Sun Feb 28, 2021 5:35 pm
Forum: General Science Questions
Topic: Midterm 2 Reactions
Replies: 79
Views: 7244

Re: Midterm 2 Reactions

I am feeling stressed/nervous about the final. Based on Midterm 2, I realized I should have a better understanding of the material conceptually.
by Bryan Le 2K
Sun Feb 28, 2021 5:09 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Moles in ΔG = -nFE
Replies: 45
Views: 4267

Re: Moles in ΔG = -nFE

In this equation, n represents the number of moles of electrons.
by Bryan Le 2K
Sun Feb 21, 2021 9:15 pm
Forum: Student Social/Study Group
Topic: Preparing
Replies: 24
Views: 1377

Re: Preparing

I plan to watch some introductory videos on ochem on youtube and refer to friends who taken the course for help.
by Bryan Le 2K
Sun Feb 21, 2021 9:12 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: State function?
Replies: 36
Views: 1541

Re: State function?

Cell potential is not a state function because the path it takes to reach the final value matters.
by Bryan Le 2K
Sun Feb 21, 2021 9:09 pm
Forum: Student Social/Study Group
Topic: Fave food
Replies: 266
Views: 46392

Re: Fave food

I love poke and Korean fried chicken!!
by Bryan Le 2K
Sun Feb 21, 2021 9:08 pm
Forum: Student Social/Study Group
Topic: Classes for next quarter?
Replies: 165
Views: 19404

Re: Classes for next quarter?

I will be taking psych 130 and chem 14c so far. I am not sure what my last class would be yet.
by Bryan Le 2K
Sun Feb 21, 2021 9:06 pm
Forum: Student Social/Study Group
Topic: Post Midterm 2 De-stressing
Replies: 92
Views: 8403

Re: Post Midterm 2 De-stressing

This weekend I took a break and caught up on some shows as well as catch up with some of my friends.
by Bryan Le 2K
Sun Feb 21, 2021 9:04 pm
Forum: Administrative Questions and Class Announcements
Topic: struggling
Replies: 73
Views: 4409

Re: struggling

I would suggest trying to get a blank a piece of paper and write out everything you know about the specific topic. From there, you can see what sections you really need help on. I hope you excel in this class! Good luck!
by Bryan Le 2K
Sun Feb 14, 2021 6:35 pm
Forum: Student Social/Study Group
Topic: Valentine's Day Long Weekend!
Replies: 30
Views: 2238

Re: Valentine's Day Long Weekend!

Thank you! I wish you all a Happy Valentine's Day as well. I hope everyone has a restful weekend!
by Bryan Le 2K
Sun Feb 14, 2021 6:31 pm
Forum: Van't Hoff Equation
Topic: Celcius vs Kelvin for T1 and T2
Replies: 84
Views: 7360

Re: Celcius vs Kelvin for T1 and T2

You should use Kelvin and not Celcius since the R constant is in terms of K.
by Bryan Le 2K
Sun Feb 14, 2021 6:28 pm
Forum: Student Social/Study Group
Topic: Fav Shows of the Moment
Replies: 115
Views: 55690

Re: Fav Shows of the Moment

I am currently rewatching Friends!
by Bryan Le 2K
Sun Feb 14, 2021 6:27 pm
Forum: Student Social/Study Group
Topic: Classes for next quarter?
Replies: 165
Views: 19404

Re: Classes for next quarter?

I am hopefully going to enroll in chem 14c, physics 5c and psych 130 or 135.
by Bryan Le 2K
Sun Feb 14, 2021 6:25 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Kelvin conversion
Replies: 40
Views: 3512

Re: Kelvin conversion

You can use either 273 or 273.15. Using 273.15 gets you a more accurate answer, but your answer at the end is still roughly the same.
by Bryan Le 2K
Sun Feb 07, 2021 6:10 pm
Forum: Student Social/Study Group
Topic: Silly Mistakes?
Replies: 72
Views: 6937

Re: Silly Mistakes?

Thanks a lot for sharing this with us! This is a great way to look at mistakes. I feel better reading this.
by Bryan Le 2K
Sun Feb 07, 2021 6:06 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: R Constant
Replies: 91
Views: 7560

Re: R Constant

In my experience, the best way to figure out what R constant to use is to look at the units that I am given. From there, I pick the appropriate R constant to matches with the units.
by Bryan Le 2K
Sun Feb 07, 2021 6:05 pm
Forum: Student Social/Study Group
Topic: Study routine.
Replies: 51
Views: 2974

Re: Study routine.

For me, I generally read the book and make an outline of the topics. From there, I do the assigned practice problems several times until I can do it by myself without any help.
by Bryan Le 2K
Sun Feb 07, 2021 6:02 pm
Forum: Student Social/Study Group
Topic: Superbowl
Replies: 10
Views: 662

Re: Superbowl

The Bucs are going to win!
by Bryan Le 2K
Sun Feb 07, 2021 6:00 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Can heat capacities be negative?
Replies: 52
Views: 14259

Re: Can heat capacities be negative?

Heat capacities should be positive because it is the amount of heat needed to increase the temperature of the volume by 1 degree.
by Bryan Le 2K
Sun Jan 31, 2021 9:33 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Diatomic molecules standard enthalpy of formation
Replies: 22
Views: 1374

Re: Diatomic molecules standard enthalpy of formation

Yes, their standard enthalpy of formation for diatomic molecules will be zero. The value is zero because these molecules are in their most stable state at standard condition.
by Bryan Le 2K
Sun Jan 31, 2021 9:26 pm
Forum: Ideal Gases
Topic: Reversing Reactions
Replies: 68
Views: 2647

Re: Reversing Reactions

To calculate the K for a reverse reaction, you would take the 1/K of the forward reaction because the numerator and reactants are now switched.
by Bryan Le 2K
Sun Jan 31, 2021 9:24 pm
Forum: Student Social/Study Group
Topic: Go treat yourself after MT1!
Replies: 75
Views: 6375

Re: Go treat yourself after MT1!

Thanks for the positivity! I decided to take a break from all my work and just treat myself to some Netflix and games after studying a lot for this midterm.
by Bryan Le 2K
Sun Jan 31, 2021 9:21 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Enthalpy
Replies: 26
Views: 1247

Re: Enthalpy

Enthalpy is a state function. This means that it doesn't relate to the path that it takes to reach the final values. It only corresponds with the initial and final values.
by Bryan Le 2K
Sun Jan 31, 2021 9:15 pm
Forum: Phase Changes & Related Calculations
Topic: Endothermic v. Exothermic
Replies: 139
Views: 17221

Re: Endothermic v. Exothermic

Delta H is positive when the reaction is endothermic because heat is absorbed while delta H is negative when the reaction is exothermic because heat is released.
by Bryan Le 2K
Sun Jan 24, 2021 8:01 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Increase in Pressure
Replies: 31
Views: 893

Re: Increase in Pressure

When looking at changes in pressures in relation to the chemical reaction, you would like at the moles of the gases only.
by Bryan Le 2K
Sun Jan 24, 2021 7:55 pm
Forum: Student Social/Study Group
Topic: Favorite Music
Replies: 113
Views: 14241

Re: Favorite Music

I generally like to listen to chill music. Some artists I listen to are Lauv, Jeremy Zucker and Rex Orange County.
by Bryan Le 2K
Sun Jan 24, 2021 7:53 pm
Forum: Student Social/Study Group
Topic: Calculators
Replies: 52
Views: 3814

Re: Calculators

You can use any type of calculator for the exam!
by Bryan Le 2K
Sun Jan 24, 2021 7:52 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H2O as a Gas
Replies: 69
Views: 7220

Re: H2O as a Gas

You include H2O in the ice table only if it is a gas. If it is a liquid then we wouldn't include it.
by Bryan Le 2K
Sun Jan 24, 2021 7:50 pm
Forum: Phase Changes & Related Calculations
Topic: Define Phase Change
Replies: 78
Views: 5739

Re: Define Phase Change

A phase change is when the state of matter of an substance changes between solid, liquid, or gas. For example, a liquid changing to a gas is considered a phase change.
by Bryan Le 2K
Sat Jan 16, 2021 8:55 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: ka vs kb
Replies: 20
Views: 591

Re: ka vs kb

Ka is used when H30+ is formed while kb is used when OH- is used. Ka is for acid dissociation and kb is for base dissociation.
by Bryan Le 2K
Sat Jan 16, 2021 8:51 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: When x is negligible in Equilibrium constant
Replies: 34
Views: 1656

Re: When x is negligible in Equilibrium constant

X is negligible when the value is smaller than 10^ -4.
by Bryan Le 2K
Sat Jan 16, 2021 8:47 pm
Forum: Student Social/Study Group
Topic: How to relax
Replies: 168
Views: 33445

Re: How to relax

When I am stressed from school, I like to lay down and either watch some shows or listen to music. Often times, I would just take a walk around my house or talk to my siblings.
by Bryan Le 2K
Sat Jan 16, 2021 8:45 pm
Forum: Ideal Gases
Topic: Units of Temperature
Replies: 82
Views: 4232

Re: Units of Temperature

The units for temperature should be in Kelvin.
by Bryan Le 2K
Sat Jan 16, 2021 8:41 pm
Forum: Student Social/Study Group
Topic: Study Habits
Replies: 96
Views: 7608

Re: Study Habits

Something I like to do when I am studying is to write everything I know about a topic on a piece of paper. From there, I would figure which topics I really need to focus on. I also recommend to do a lot of practice problems to help prepare you for the exam. In doing so, you would be more aware of th...
by Bryan Le 2K
Sat Jan 16, 2021 8:36 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Using the ICE table
Replies: 36
Views: 1517

Re: Using the ICE table

Yea, the ICE table can be used for both partial pressure and concentration. Using these table, one could find many quantities such as the K constant or initial concentration of something.
by Bryan Le 2K
Sat Jan 16, 2021 8:34 pm
Forum: Student Social/Study Group
Topic: Comfort Movies
Replies: 168
Views: 35792

Re: Comfort Movies

My go-to comfort movie would have to be Avengers Endgame or Thor Ragnarok. Other than these, I really enjoy watching Disney movies.
by Bryan Le 2K
Sat Jan 09, 2021 7:13 pm
Forum: Ideal Gases
Topic: Units of Temperature
Replies: 82
Views: 4232

Re: Units of Temperature

Hi, the units for temperature should be in Kelvin.
by Bryan Le 2K
Sat Jan 09, 2021 7:12 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: K vs. Q
Replies: 53
Views: 2426

Re: K vs. Q

Yes! Q is used when the system hasn't reach equilibrium yet while K is used when the system has reach equilibrium.
by Bryan Le 2K
Sat Jan 09, 2021 7:10 pm
Forum: Student Social/Study Group
Topic: How to relax
Replies: 168
Views: 33445

Re: How to relax

Hi! I like to watch Netflix or play video games with my friends. Sometimes, I also enjoy playing board games with my family.
by Bryan Le 2K
Thu Jan 07, 2021 10:46 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 9651
Views: 3867057

Re: Post All Chemistry Jokes Here

Why did the attacking army use acid?
To neutralize their base.
by Bryan Le 2K
Tue Jan 05, 2021 9:50 pm
Forum: Student Social/Study Group
Topic: Learning Sessions
Replies: 24
Views: 1300

Re: Learning Sessions

I believe you should attend as many sessions as you can. They can viewed as a great way to clarify information or review material.

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