CHEMISTRY COMMUNITY

jia207

I think about a week they should be out. I believe they were out pretty quick last quarter compared to some of my other classes that took a lot longer.

jia207

Going through a Beetles phase right now!

jia207

Yes we are allowed to use graphing calculators on the exams in this course

jia207

For this example, you should use 8.314 because you would want the answer in joules

jia207

Textbook problems and going through the chemistry outline and making sure I know most of the concepts on that list helps me prepare for the final.

jia207

Recently, I have been watch this new Netflix show called Ginny and Georgia. It's a fun show about adults and teens going through life.

jia207

Thank you for another great quarter Dr.Lavelle! Really enjoyed learning more chemistry.

jia207

Hey! I believe Dr. Lavelle previously described that recharging a battery is similar to performing the redox reaction in the reverse direction.

jia207

I work roughly the same amount of hours. It is definitely hard to manage time, but in some ways I like the break from thinking about school. Time management is super important. I completely agree, having a break during the day from school related responsibilities is really nice. I think it helps me...

jia207

Hey! I believe all exergonic reactions are spontaneous

jia207

A catalyst works by decreasing a reactions activation energy so the reaction can take place at a quicker rate. Enzymes are an example of a catalyst. However, not all enzymes speed up reactions, some inhibit/slow down reactions.

jia207

As long as the lid of a thermal mug is on and sealed properly, it would be an example of an isolate system because there is no heat transfer from the system and its surrounding.

jia207

I am taking Castillo for 14C next quarter, I have heard good things about her!

jia207

I do not have a part time job, but I am on an athletic team and practice around 20 hours a week. I find it hard to manage, but what helps me to stay motivated after practice when I am tired is to drink coffee and drink a lot of water. Keeping myself fueled and mind/body in the right place is importa...

jia207

I love sushi! Had some for lunch today

jia207

Yes this quarter is going by so quick! Congrats everyone

jia207

I would recommend contacting your TA to review your exam. If they do not respond I would just keep trying to email them or hang around after your discussion section and ask them over zoom.

jia207

I believe the terms vapor and gas can be used interchangeably.

jia207

Delta G units would be in kj!

jia207

For most calculations in this class, you should use kelvin

jia207

I am currently taking Chem 14BL and 14B together. I think it is manageable, however treat Chem14BL as a 4 or 5 credit class as opposed to a 3 credit class. It feels like the work of a regular class, not so much a lab.

jia207

Hanging out with friends after having a productive day always helps me relax, and I am sure not to discuss schoolwork with them so I can fully have a break from it.

jia207

q is the energy transferred and rev stands for reversible

jia207

I always think of OILRIG when I have a question that has to do with redox reactions. OIL (loose) RIG (gain)

jia207

With reference to the order of liquid samples, the most ordered will have lower entropy levels while the least ordered will have a higher entropy.

jia207

This is so cool! I will definitely look more into it. I love learning about real life application when it comes to my classes

jia207

I think we could see sapling week 5/6 on midterm 2, and some from 3/4 that was not covered on midterm 1

jia207

I found anthro 2 and intro to sociology pretty easy

jia207

I find you tube videos/khan academy/ the organic chemistry tutor really a helpful resources outside of the class

jia207

K can be used for both the equilibrium constant or an abbreviation for Kelvin

jia207

For this equation, use Cv when there is a constant volume and Cp when there is a constant pressure

jia207

I think so! But to be sure I think its smart to check Ccle and find out who your TA is protecting before the start of your midterm/final

jia207

I believe entropy will always be positive for a continuous/spontaneous reaction

jia207

Try and double check when you can, and when you get your final answer ask yourself if it looks correct and logically makes sense for what the question is asking. Thats a good way to see if you messed up.

jia207

Delta H is the change in heat while at constant pressure, Qp.

jia207

To get the final value, you would subtract the initial state from the final state.

jia207

To take the Anti-Log you would do 10^(-pKa)!

jia207

Thanks for the advice, taking the weekend to relax a bit was a great idea.

jia207

From 90-93 is an A-, above 93 is an A. Most professors have the grading scale in their syllabus or on their websites.

jia207

Congrats everyone on finishing week 4!!!

jia207

I think its important to pay attention to detail, sometimes reading a question outloud to myself helps me catch some minor details.

jia207

I think some of the questions were a little harder than expected. I thought I knew how to do most of the textbook problems, but struggled on the exam.

jia207

I'm taking it currently, I think it is possible to take online and still get a good grade

jia207

I think we should have them back within the week, that's what happened last quarter.

jia207

The show New Girl always help me relax, the episodes are shorter too so if you don't have a lot of time its a good option during the quarter

jia207

The show New Girl always help me relax, the episodes are shorter too so if you don't have a lot of time its a good option during the quarter

jia207

The units to know for pressure are atm and torr

jia207

Endothermic reactions will ABSORB energy which indicates a positive delta, while exothermic reactions RELEASE energy which indicates a negative delta.

jia207

The shift would be more to the right because the reaction wants return to the fixed P/R ration.

jia207

You would use the positive value for the answer to the question. If both are positive, choose what value makes sense for the question.

jia207

The first homework is due on the 17th! You can find the due date on the sapling website

jia207

K is used when a reaction is at equilibrium and Q is used when an equation is not over equilibrium. They are both always Products/Reactants

jia207

Even though the lectures are asynchronous, I would try and keep up with them each week. If you don't its really hard to catch up when there's a midterm and concepts really build off each other.

jia207

I would do your best to have 5 posts by Sunday at midnight each week, helps you stay on a schedule and review material from the lectures of the week :)

jia207

The I stands for "Initial Concentrations" and in a reverse reaction the initial concentrations are from the products

jia207

Because water is amphoteric, it can be an acid or a base.

jia207

I created my own study guide for the final and will definitely be using that to look back on while in 14B.

jia207

Good luck on the rest of finals everyone! I am proud of all of you for making it this far.

jia207

Thank you for making this quarter possible during these interesting times. As much as it is difficult for students, I know it must be difficult for professors as well. I appreciate all the hard work you put in to making things work. Thank you.

jia207

I was definitely more stressed for time on this final. I am glad other people feel the same way and it wasn't just me. I wish the final was more like the midterms I think I would have done much better.

jia207

I am glad we all got through and finished chem together. Even though the final was hard, I am proud of myself for taking and finishing my first college chemistry course.

jia207

I have not seen any posts for extra credit. Hopefully there are some options for patrial credit on the final like in the first midterm.

jia207

I am also starting to worry about my grade. I also don't like how there isn't anywhere we can check what grade we have in the class currently. I am not used to that.

jia207

I am currently on the waitlist for 14B, does anyone know when we will be taken off the waitlist/enrolled in the class?

jia207

Overall doing well! Just went back home so I am having a little difficulty adjusting to the time change and getting into a new routine.

jia207

My CCLE is working now! Hope everything worked out.

jia207

I believe that 90% should be the cutoff for receiving an A of any kind. But in some classes I took in the past they curved the final grades so that there could be a specific percentage of students with an A and a B and so forth. But I'm not sure how he's going to go about that. I also agree that 90...

jia207

I feel like I am a little behind and stressed about catching up before finals hit

jia207

One thing I like to do is go for a hike, the silence and peace of nature is calming after a stressful week.

jia207

One thing I do that may sound strange is I take a time laps of myself while I am studying. That way I can't go on my phone and I have something cool to watch when I am done studying and it motivates me to go longer.

jia207

Happy Thanksgiving! My tradition is going around and saying what we are thankful for at dinner.

jia207

Every Midterm we have had I have made a list of all the topics and then steps on how to do them/what they are as a compressed study guide. I think this will definitely help me study for the final because it is important to stay organized in order to not feel overwhelmed with all the material.

jia207

I really hope not! I know some teachers who are giving students the whole week off.

jia207

Knowing the spin state differentiates the atom from another atom. No two atoms are allowed to have the same configuration which is why this is important.

jia207

To find your post select "Quick Links" in the top left and then "Your Posts." Hope this helps :)

jia207

Winter enrollment will increase for second pass I believe. In addition, I think everyone from the waitlist also gets in.

jia207

Yes, the final will be cumulative.

jia207

Lone pair e- count as their own regions of e- density.

jia207

I believe they will be posted later this week. Hopefully our TAs can give us some update soon.

jia207

My mentor told me you have until week 9 to change to P/NP! Hope this helps

jia207

The homework and chemistry community is always due on Sunday. You need to check the textbook to see what week the homework is due.

jia207

I believe everyone can do well! We can use the mistakes we made from the last midterm to help us on this one.

jia207

I am finding it a little bit depressing that there are two more quarters left...I have to go through this two whole more times this year. This quarter has already felt so long! Kind of sad and stressed. I am trying to find ways to take care of myself, but am lacking.

jia207

I really enjoy watching House of Cards! If you love politics this is a great show for you (it does get a little dark sometimes fair warning)

jia207

I am planning on studying with friends who are also taking chem. Having someone that makes you accountable with your studying/to help you along the way I think will really help me.

jia207

For me what has helped is developing a routine and putting on nice clothes to make myself feel better. I feel I can be more productive at home when I am wearing nice clothes as opposed to sweatpants.

jia207

I am also planning on taking Chem and bio at the same time next quarter. Just wondering has anyone taken Chem 14 B with LS7A? Is chem 14B more challenging than chem 14A?

jia207

I make flash cards with all the trends! Drawing them all out in my own writing really helps me learn/study them.

jia207

I worked and it was really fun to see strangers in costumes dressed up for Halloween. It made it feel more like a normal year. The sunset was also amazing I hope some of you all got to see it.

jia207

Hannah Alltucker 2H wrote:I think it just wants you to solve for wavelength by making it wavelength=1/r(1/n-1/n2), which would in this case be the inverse.

Thank you for your reply! How would I convert the inverse into regular wavelength in nm?

jia207

Use simple algebra to arrange the question to fit what you need! The equation can be found on the formula sheet and other students have posted what it is already above. You got this :)

jia207

Yes, c will always be the speed of light. The full length number for c can be found on his equation sheet.

jia207

For this question I keep getting it wrong and the Sapling feedback is tell me to find the wavelength by calculating the inverse first? How do I calculate the inverse of 1/λ?

jia207

I believe it will also be the same! I saw on class planner this class was labeled as "asynchronous"

jia207

Does anyone know if Dr. Lavelle will be posting new "Audio-Visual Focus-Topics, Assessments & Surveys" for the newer topics we have covered? The website stops at Heisenberg Uncertainty Principle. I found these modules very helpful when it came to learning and studying new material.

jia207

I totally understand! I am glad i'm not the only one who feels this way. I normally think this but end up doing better than I expected. We have to not doubt ourselves so much sometimes...

jia207

Kendall_Dewey_2D wrote:Here's a really cool article I found on a new discovery that combines tech with chemistry! https://www.cnbc.com/2020/10/24/how-a-d ... ustry.html

I also found this super interesting and relevant to today. Thanks!

jia207

I thought about cutting my sodium intake, but then I was like Na :)

jia207

Congrats! Amazing achievement.

jia207

I believe for the midterm, we won't have to worry about sig figs as much because all the answers will be in multiple choice. That being said, I think it is still important to use sig figs throughout the problem.

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