Search found 60 matches

by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:44 pm
Forum: Ideal Gases
Topic: solids and K
Replies: 8
Views: 16

Re: solids and K

Basically, when you add a solid to a solvent, like water, it just sits at the bottom (it doesn't dissolve), therefore it has no concentration and doesn't affect the overall equilibrium constant.
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:38 pm
Forum: Administrative Questions and Class Announcements
Topic: final exam
Replies: 3
Views: 24

Re: final exam

He sent an email last quarter saying that final exams will be available the 3rd week of winter quarter at 3034 Young Hall. So I assume Friday they'll be accessible ?
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:28 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

Why do chemists enjoy working with ammonia? Because it's pretty basic stuff.
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:27 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

Anions aren't negative, they're just misunderstood.
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:22 pm
Forum: Phase Changes & Related Calculations
Topic: removing heat from system
Replies: 6
Views: 227

Re: removing heat from system

If Kc decreases with an increase in temperature, the reaction shifts to the left, making it an exothermic reaction. The Kc can also increase with a decrease in temperature, causing the reaction to shift to the right.
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:09 pm
Forum: Ideal Gases
Topic: Pressure
Replies: 2
Views: 14

Re: Pressure

It's kinda like the concept of having a liquid or water in the reaction. The concentration of water as a reactant is large and remains constant as a product therefore you don't see it cause a shift in the equilibrium.
by Jaklin Astvatsatryan
Thu Jan 23, 2020 6:03 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Temperature
Replies: 6
Views: 17

Re: Temperature

For an exothermic reaction (ΔH is negative), K decreases with an increase in temperature. Increasing the temperature causes the equilibrium to shift to the left.

For an endothermic reaction (ΔH is positive), K increases with an increase temperature.
by Jaklin Astvatsatryan
Sun Jan 19, 2020 11:46 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

What do tomb robbers do to pyramids? -Radium
by Jaklin Astvatsatryan
Sun Jan 19, 2020 11:44 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

What do you do to dead elements? You barium.
by Jaklin Astvatsatryan
Sun Dec 08, 2019 10:06 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

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by Jaklin Astvatsatryan
Sun Dec 08, 2019 10:05 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

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by Jaklin Astvatsatryan
Sun Dec 08, 2019 9:56 pm
Forum: Student Social/Study Group
Topic: Final discussion
Replies: 4
Views: 66

Re: Final discussion

AGaeta_4E wrote:For some reason the word titration just threw me off so it really took me a minute to put something down.

Same. I was so lost for a second.
by Jaklin Astvatsatryan
Sun Dec 08, 2019 9:49 pm
Forum: Student Social/Study Group
Topic: thoughts on final exam
Replies: 4
Views: 73

Re: thoughts on final exam

Nare Arakelian Dis 3E wrote:Does anyone know when we will get our scores back

I'm pretty sure we'll get it back by next next week Sunday because it took a week to grade the midterms.
by Jaklin Astvatsatryan
Sun Dec 08, 2019 9:44 pm
Forum: Student Social/Study Group
Topic: Practice Final
Replies: 17
Views: 233

Re: Practice Final

The supplemental worksheet constructed by Lyndon was so helpful! Thank youu
by Jaklin Astvatsatryan
Sun Dec 01, 2019 8:57 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."
by Jaklin Astvatsatryan
Sun Dec 01, 2019 8:51 pm
Forum: Student Social/Study Group
Topic: readings
Replies: 13
Views: 128

Re: readings

The readings can be extensive so try doing the homework problems and reading topics that you're still confused on.
by Jaklin Astvatsatryan
Sun Dec 01, 2019 8:29 pm
Forum: Student Social/Study Group
Topic: Final Studying
Replies: 8
Views: 40

Re: Final Studying

Create your own worksheets! Take problems from the book and solve them. Go back and grade yourself and that way you can see where you need more practice/help.
by Jaklin Astvatsatryan
Sun Nov 24, 2019 10:28 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

Where do you put dirty dishes? In the zinc.
by Jaklin Astvatsatryan
Sun Nov 24, 2019 10:11 pm
Forum: Student Social/Study Group
Topic: Topics Covered in Lecture this week
Replies: 4
Views: 48

Re: Topics Covered in Lecture this week

here's a picture of the notes
by Jaklin Astvatsatryan
Sun Nov 24, 2019 10:00 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://www.sciencenews.org/article/rib ... meteorites

Scientists have found ribose in meterorites which is a part of the backbone of RNA.
by Jaklin Astvatsatryan
Sun Nov 24, 2019 9:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

I tried writing jokes about the periodic table... but I realized it wasn't in my element
by Jaklin Astvatsatryan
Sun Nov 24, 2019 9:37 pm
Forum: Student Social/Study Group
Topic: Any tips on how to catch up in this class?
Replies: 16
Views: 83

Re: Any tips on how to catch up in this class?

Try finding previous tests from the test bank and study those. You could also watch videos which are helpful and do more than the assigned homework questions for practice.
by Jaklin Astvatsatryan
Sun Nov 17, 2019 9:57 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://www.sciencedaily.com/releases/2 ... 095754.htm
Scientists are using Xrays and infrared light to study mummies which can provide insight to life thousands of years ago.
by Jaklin Astvatsatryan
Sun Nov 17, 2019 9:47 pm
Forum: Student Social/Study Group
Topic: Final
Replies: 11
Views: 96

Re: Final

Alexis 3F wrote:Does anyone know how many questions or how much time the final is supposed to be?

It's three hours...
by Jaklin Astvatsatryan
Sun Nov 17, 2019 9:45 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

Oxygen, hydrogen, sulfur, sodium, and phosphorous walk into a bar. The bartender said, "OH SNaP!"
by Jaklin Astvatsatryan
Sun Nov 17, 2019 9:43 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

Why should you go drinking with neutrons?
Because wherever they go, there's no charge!
by Jaklin Astvatsatryan
Sun Nov 17, 2019 9:06 pm
Forum: Student Social/Study Group
Topic: Test 2
Replies: 11
Views: 51

Re: Test 2

sbeall_1C wrote:Dr. Lavelle also said he will covering sigma and pi bonds in more depth for the first 5 minutes of class tomorrow and that will be on Test 2!


So all of Monday's lecture won't be on the test?
by Jaklin Astvatsatryan
Mon Nov 11, 2019 3:32 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://www.sciencedaily.com/releases/2 ... 093930.htm

A new grid battery design that is energy renewable
by Jaklin Astvatsatryan
Mon Nov 11, 2019 3:27 pm
Forum: Administrative Questions and Class Announcements
Topic: KAREN SUN 5-7PM WORKSHOP - DOWNLAOD WORKSHEETS HERE
Replies: 53
Views: 2417

Re: KAREN SUN 5-7PM WORKSHOP - DOWNLAOD WORKSHEETS HERE

Oduwole 1H wrote:Will there still be a workshop this upcoming week?


If you look at the post right above yours it says there was a drop-in which I'm sure will continue.
by Jaklin Astvatsatryan
Mon Nov 11, 2019 3:20 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

What do cesium and iodine love to watch together?

CsI
by Jaklin Astvatsatryan
Mon Nov 11, 2019 3:18 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

When one physicist asks another, "What's new?" what's the typical response?

C over lambda
by Jaklin Astvatsatryan
Mon Nov 11, 2019 3:13 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Wavelength Plausibility
Replies: 30
Views: 843

Re: Wavelength Plausibility

KatherineValdez_4B wrote:What is the final unit for the wavelength?


A unit of wavelength is in meters which you can convert to nm.
by Jaklin Astvatsatryan
Sun Nov 03, 2019 8:42 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://www.sciencedaily.com/releases/2 ... 111826.htm
A substitute for using fossil fuels to produce a gas has been found through the production of an artificial leaf that uses sunlight, CO2 and water.
by Jaklin Astvatsatryan
Sun Nov 03, 2019 8:25 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

silver walks up to gold at the bar and says "AU, get out of here."
by Jaklin Astvatsatryan
Sun Nov 03, 2019 8:19 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

H20 is water and H2O2 is hydrogen peroxide. What is H2O4?
Drinking
by Jaklin Astvatsatryan
Sun Nov 03, 2019 8:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Accessing the E-textbook [ENDORSED]
Replies: 20
Views: 1092

Re: Accessing the E-textbook [ENDORSED]

ValerieChavarin3E wrote:The sampling isn't mandatory but it is highly recommended as it provides you with extra practice and questions that are useful to study for the exams.

Yea, not required but it does help a lot. Shows you step by step how to solve problems.
by Jaklin Astvatsatryan
Sun Nov 03, 2019 8:11 pm
Forum: Administrative Questions and Class Announcements
Topic: 10/28 Updates due to Fire [ENDORSED]
Replies: 14
Views: 843

Re: 10/28 Updates due to Fire [ENDORSED]

Katherine Brenner 3H wrote:Does anyone know when the midterm review sessions are for next week? ( week of midterm).

If you go to the class website and click the Midterm Review Sessions and Rooms, it will show you all the times and sessions
by Jaklin Astvatsatryan
Sun Oct 27, 2019 10:26 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student - Part II [ENDORSED]
Replies: 130
Views: 3354

Re: Advice from a Medical Student - Part II [ENDORSED]

Thank you for sharing your story. It's inspiring to hear that you made it that far and your love for science continues to grow. I am still debating on what route to follow but your story reassured me that I will be exposed to so many fields in medical school.
by Jaklin Astvatsatryan
Sun Oct 27, 2019 10:19 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://phys.org/news/2019-10-hydrogen- ... emote.html
Scientists at MIT have developed an inexpensive and portable device to produce hydrogen peroxide. useful in improving sanitation.
by Jaklin Astvatsatryan
Sun Oct 27, 2019 10:05 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://phys.org/news/2019-10-mysteriou ... human.html
The article talks about the findings of microproteins and how it can be linked to cancer
by Jaklin Astvatsatryan
Sun Oct 27, 2019 9:50 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test 1 [ENDORSED]
Replies: 107
Views: 2770

Re: Test 1 [ENDORSED]

do we need bluebooks for the midterm?
by Jaklin Astvatsatryan
Sun Oct 27, 2019 9:41 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 132
Views: 77086

Re: Reading the textbook [ENDORSED]

guys i really recommend watching videos, esp my visual learners. start problems and try doing them without notes and then watch videos if you're really stuck.
by Jaklin Astvatsatryan
Mon Oct 21, 2019 12:07 am
Forum: Limiting Reactant Calculations
Topic: Showing Work for Limiting Reactant Calculations on Tests [ENDORSED]
Replies: 68
Views: 1597

Re: Showing Work for Limiting Reactant Calculations on Tests [ENDORSED]

So we can get partial credit if we show our work and we have the right idea, but mess up the calculations? yes I remember my TA saying we get partial credit for calculations and showing work. Thank you!! Imma need that partial credit. I messed up on this question because I mixed up my ratio which i...
by Jaklin Astvatsatryan
Mon Oct 21, 2019 12:04 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

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by Jaklin Astvatsatryan
Mon Oct 21, 2019 12:03 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

don't laugh too hard
by Jaklin Astvatsatryan
Sun Oct 20, 2019 11:53 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 229
Views: 103922

Re: Saying Thank You to Dr. Lavelle

I wanted to say thank you to Dr. Lavelle for creating such helpful video modules for each topic in this course. Lots of times in class it's hard for me to comprehend everything that is being taught because I don't have enough time to process each point. However, the videos allow me to go through th...
by Jaklin Astvatsatryan
Sun Oct 20, 2019 11:49 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test 1 [ENDORSED]
Replies: 107
Views: 2770

Re: Test 1 [ENDORSED]

Are midterms and the final curved ?
by Jaklin Astvatsatryan
Sun Oct 13, 2019 9:14 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 97
Views: 19967

Re: Final Jitters

Even though we're only required to submit 5 problems from the book as homework, I recommend doing a few more because the concepts we learn can be applied in different contexts and you want to be prepared for any type of question. Also to help with the anxiety, I chew gum while I take a test, idk why...
by Jaklin Astvatsatryan
Sun Oct 13, 2019 9:04 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7752
Views: 1071183

Re: Post All Chemistry Jokes Here

All the good chemistry jokes Argon
by Jaklin Astvatsatryan
Sun Oct 13, 2019 8:45 pm
Forum: Administrative Questions and Class Announcements
Topic: How to list Chem_Mod posts
Replies: 11
Views: 32540

Re: How to list Chem_Mod posts

Kristina Rizo 3K wrote:what does Chem_mod mean? Is that the professor?


Yes it's the professor's account
by Jaklin Astvatsatryan
Sun Oct 13, 2019 8:41 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test 1 [ENDORSED]
Replies: 107
Views: 2770

Re: Test 1 [ENDORSED]

If we need to use the answer of one question for the next question and our answer for the first question is wrong, will we not get full credit for the second, even if our calculations on the second were correct? If I'm not mistaken, we can receive partial credit for problems if it is evident that w...
by Jaklin Astvatsatryan
Sun Oct 13, 2019 8:37 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 169
Views: 102926

Re: Rusty on High School Chem [ENDORSED]

Do you guys recommend reading the textbook with the homework or just doing the practice problems from the book? Also do you guys go over the problems multiple times or just do it once and then move on? I recommend reading the chapter and especially reviewing the sample problems. Breaking it down in...
by Jaklin Astvatsatryan
Sun Oct 06, 2019 11:24 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 154
Views: 86058

Re: Advice from a Medical Student [ENDORSED]

Thank you for the advice!! Update us on how Med school is going.
by Jaklin Astvatsatryan
Sun Oct 06, 2019 11:17 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 2 Homework Problems [ENDORSED]
Replies: 67
Views: 1613

Re: Week 2 Homework Problems [ENDORSED]

This isn't a homework problem but under Fundamental E exercises, is the problem, "The approximate population of Earth is 7.0 billion people. How many moles of people inhabit Earth? (b) If all people were pea pickers, how long would it take for the entire population of Earth to pick 1 mol of pea...
by Jaklin Astvatsatryan
Sun Oct 06, 2019 11:07 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 169
Views: 102926

Re: Rusty on High School Chem [ENDORSED]

I didn't take AP Chem in high school but we should all be up for a challenge. If any of you guys want, we can form study groups and help each other!!
by Jaklin Astvatsatryan
Sun Oct 06, 2019 11:04 pm
Forum: Student Social/Study Group
Topic: Chemistry News
Replies: 64
Views: 37932

Re: Chemistry News

https://www.sciencedaily.com/releases/2 ... 132701.htm
The article discusses how chemists have fabricated the color changing of nanoparticles.
by Jaklin Astvatsatryan
Sun Oct 06, 2019 10:55 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 2 Homework Problems [ENDORSED]
Replies: 67
Views: 1613

Re: Week 2 Homework Problems [ENDORSED]

Lauren Sanchez 3D wrote:Just to make sure, the homework problems are now due during our actual discussions right?


Yes. Our TA's will be collecting them the day of your discussion.

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