Search found 69 matches

by 305405193
Sun Feb 21, 2021 5:53 pm
Forum: Student Social/Study Group
Topic: Post Midterm 2 De-stressing
Replies: 85
Views: 222

Re: Post Midterm 2 De-stressing

Is Wanda Vision that good? I LOVE MARVEL so I've been debating on seeing it, but everyone says its so GOODD. Please let me know if it's worth skipping studying time LOL
by 305405193
Sun Feb 21, 2021 5:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

I make bad Chemistry jokes because all of the good ones ARGON (Ar)
by 305405193
Sun Feb 21, 2021 5:46 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Enthalpy of Formation
Replies: 3
Views: 14

Re: Enthalpy of Formation

I watched a really helpful YouTube video on it, https://www.youtube.com/watch?v=FP-VYfTYi8Y&t=685s
by 305405193
Sun Feb 21, 2021 5:45 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Monatomic and Linear Gases
Replies: 4
Views: 16

Re: Monatomic and Linear Gases

How many questions over this topic do you think will be on the final?
by 305405193
Sun Feb 21, 2021 5:44 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: H vs q
Replies: 17
Views: 64

Re: H vs q

Does any one have any good practice problems or YouTube videos for this topic to study for the final?
by 305405193
Sun Feb 14, 2021 10:48 pm
Forum: Identifying Acidic & Basic Salts
Topic: Determining Acids or Bases (Number based)
Replies: 3
Views: 47

Re: Determining Acids or Bases (Number based)

is there a good YouTube video for finding out the ones we are supposed to know?
by 305405193
Sun Feb 14, 2021 10:44 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 219
Views: 143024

Re: Rusty on High School Chem [ENDORSED]

Other than PLFs are there any good tutoring sessions or people who offer services?
by 305405193
Sun Feb 14, 2021 10:44 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 219
Views: 143024

Re: Rusty on High School Chem [ENDORSED]

I am taking 14B and I am still really scared to keep going into chemistry because I still do not know how to study for chemistry and not having developed that ability since high school.
by 305405193
Sun Feb 14, 2021 10:39 pm
Forum: Student Social/Study Group
Topic: Culinary Chemistry
Replies: 62
Views: 341

Re: Culinary Chemistry

Also, are there certain videos that help explain the chemistry behind cooking different foods?
by 305405193
Sun Feb 14, 2021 10:36 pm
Forum: Student Social/Study Group
Topic: Culinary Chemistry
Replies: 62
Views: 341

Re: Culinary Chemistry

What in chemistry makes flavors in food taste different other than heat?
by 305405193
Mon Feb 08, 2021 12:00 am
Forum: Administrative Questions and Class Announcements
Topic: Exam Format
Replies: 15
Views: 102

Re: Exam Format

They are usually multiple choice and tend to go by the book more as a resource!
by 305405193
Sun Feb 07, 2021 11:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student [ENDORSED]
Replies: 230
Views: 117980

Re: Advice from a Medical Student [ENDORSED]

Thank you so much for this! I think a lot of things that we might have not seen as normal are now very normalized and I feel more secure as a pre-med student :)
by 305405193
Sun Feb 07, 2021 11:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2
Replies: 31
Views: 137

Re: Midterm 2

Also, do you guys have any study groups who hold zooms before the test to review?
by 305405193
Sun Feb 07, 2021 11:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm 2
Replies: 31
Views: 137

Re: Midterm 2

How did you guys study and what really helped versus what really did not help y'all?
by 305405193
Sun Feb 07, 2021 11:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 87
Views: 74574

Re: Tutoring? [ENDORSED]

PLF sessions are super helpful in the sense that they are like tutoring but way better! They give you the opportunity to explore the topic with your peers.
by 305405193
Sun Feb 07, 2021 11:56 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Does phase matter in Hess's Law?
Replies: 17
Views: 47

Re: Does phase matter in Hess's Law?

does Lavelle speak over this? by any chance specifically in his lectures?
by 305405193
Sun Jan 31, 2021 9:31 pm
Forum: Phase Changes & Related Calculations
Topic: standard form
Replies: 14
Views: 120

Re: standard form

Is there a certain chart though that maybe could be found online or through Lavelle's lectures?
by 305405193
Sun Jan 31, 2021 9:30 pm
Forum: Phase Changes & Related Calculations
Topic: State Property
Replies: 11
Views: 79

Re: State Property

I might have missed it from Lavelle's lectures but are there other properties that I should know of?
by 305405193
Sun Jan 31, 2021 9:29 pm
Forum: Phase Changes & Related Calculations
Topic: endothermic/exothermic
Replies: 43
Views: 153

Re: endothermic/exothermic

Here is a YouTube video that really helped me understand these concepts. https://www.youtube.com/watch?v=0cUK4jcAEaU
by 305405193
Sun Jan 31, 2021 9:27 pm
Forum: Phase Changes & Related Calculations
Topic: midterm respondus
Replies: 19
Views: 162

Re: midterm respondus

Just for future tests make sure to go to chrome or safari and enter the test then access the lockdown browser through the regular browser so you don't waste time trying to access the test though the lockdown browser
by 305405193
Sun Jan 31, 2021 9:24 pm
Forum: Phase Changes & Related Calculations
Topic: when to assume x is insignificant
Replies: 83
Views: 190

Re: when to assume x is insignificant

x is insignificant when you get a percent ionization less than 5% and when k is less than 1.0 x 10^-4
by 305405193
Sun Jan 24, 2021 10:29 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: H2O as a Gas
Replies: 69
Views: 453

Re: H2O as a Gas

Just as previous replies have stated you would only include H2O in the reaction is it were a gas, not a liquid since liquids are never included.
by 305405193
Sun Jan 24, 2021 10:27 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Relationship between Ka and pKa
Replies: 11
Views: 57

Re: Relationship between Ka and pKa

Here's a brief YouTube video that helped me distinguish the difference between the both and other terms we need to know. https://www.youtube.com/watch?v=IQ6gHQAg_Nk
by 305405193
Sun Jan 24, 2021 10:24 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Percent ionization
Replies: 10
Views: 50

Re: Percent ionization

Does anyone know of a good YouTube video that explains percent ionization? I sort of understood how Lavelle explained it but I need more examples.
by 305405193
Sun Jan 24, 2021 10:22 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Rounding E Values in ICE charts
Replies: 17
Views: 73

Re: Rounding E Values in ICE charts

is this why he referenced it to money when he stated if someone has 10,000 dollars and gives 10 dollars to someone, they basically have 10,000 dollars? Is that what he signified, by basically rounding if the E is less than a certain value?
by 305405193
Sun Jan 24, 2021 10:20 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Salts making solution acidic or basic
Replies: 6
Views: 42

Re: Salts making solution acidic or basic

Just like the previous response, I have trouble telling between acidic and basic salts, is there a sort of mechanism of remembering the difference or the properties of what makes them more basic, acidic or neutral?
by 305405193
Sun Jan 17, 2021 9:42 pm
Forum: Ideal Gases
Topic: Bars to atm [ENDORSED]
Replies: 40
Views: 238

Re: Bars to atm [ENDORSED]

For one problem on the week 1 homework due tonight we have a problem that utilizes the units of bars so in order to solve is it mandatory to covert it to atm or is it just recommended?
by 305405193
Sun Jan 17, 2021 9:40 pm
Forum: Ideal Gases
Topic: Non-Ideal gases?
Replies: 26
Views: 134

Re: Non-Ideal gases?

just so I can reference it for later what are non-ideal gases and what are they utilized for?
by 305405193
Sun Jan 17, 2021 9:39 pm
Forum: Ideal Gases
Topic: n/V = concentration
Replies: 19
Views: 107

Re: n/V = concentration

so let's say there is a problem where they provide the mols and they are in a certain number of L in a container you would have to find the concentration with is basically mol/L in order to then proceed with the problem?
by 305405193
Sun Jan 17, 2021 9:38 pm
Forum: Ideal Gases
Topic: reversing reactions
Replies: 83
Views: 437

Re: reversing reactions

One good video that expressed an example of reversing a reaction was on this link https://www.youtube.com/watch?v=aJ0KNQ5-KaI
by 305405193
Sun Jan 17, 2021 9:36 pm
Forum: Ideal Gases
Topic: reversing reactions
Replies: 83
Views: 437

Re: reversing reactions

just like how you reversed the reaction, you would have k inversed so it would be 1/K
by 305405193
Mon Jan 11, 2021 12:33 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE Tables
Replies: 11
Views: 78

Re: ICE Tables

I utilized this YouTube video to help me solve and figure out ice tables https://www.youtube.com/watch?v=54n1XppP-lA
by 305405193
Mon Jan 11, 2021 12:29 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5H.1 Square root, dividing, and inversing the K value
Replies: 4
Views: 23

Re: 5H.1 Square root, dividing, and inversing the K value

just clarifying, but we would only need to square or cube K when the coefficients/ moles of the reaction are being multiplied by 2 or 3 respectively?
by 305405193
Mon Jan 11, 2021 12:27 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Coefficients for eq constant
Replies: 9
Views: 43

Re: Coefficients for eq constant

In order to figure out where the coefficients would go I saw this YouTube video which should help. He clearly explains the whole process : https://www.youtube.com/watch?v=aJ0KNQ5-KaI
by 305405193
Mon Jan 11, 2021 12:24 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: change in K
Replies: 22
Views: 100

Re: change in K

Just as stated from before, K can only be altered by temperature
by 305405193
Mon Jan 11, 2021 12:22 pm
Forum: Ideal Gases
Topic: Ice method
Replies: 14
Views: 72

Re: Ice method

Do any of you have any recommendations on a good YouTube video for explaining Ice tables?
by 305405193
Tue Dec 15, 2020 8:24 pm
Forum: General Science Questions
Topic: # of chem posts
Replies: 27
Views: 334

Re: # of chem posts

can you catch up on chemistry community posts? for example lets say you have 10 the whole quarter and decide to catch up on the last week is it still valid?
by 305405193
Tue Dec 15, 2020 8:22 pm
Forum: General Science Questions
Topic: Passing Grade
Replies: 34
Views: 280

Re: Passing Grade

It applies I believe to the points of the assignments of the overall class in order to get a passing grade.
by 305405193
Tue Dec 15, 2020 8:20 pm
Forum: General Science Questions
Topic: Chemistry Behind Mosquito Bites
Replies: 6
Views: 81

Re: Chemistry Behind Mosquito Bites

Does the saliva in mosquitos naturally release histamine or it normally found in their saliva to begin with?
by 305405193
Tue Dec 15, 2020 8:18 pm
Forum: General Science Questions
Topic: Grades
Replies: 28
Views: 375

Re: Grades

I also check on CCLE under the tab, Grades, it should be very easy to find.
by 305405193
Tue Dec 15, 2020 8:14 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 219
Views: 143024

Re: Rusty on High School Chem [ENDORSED]

Lavelle this quarter especially with a pandemic and personally not having any experience with chemistry at all coming out of high school provided lots of resources to help learn and digest the material which I appreciated a lot. Also, YouTube videos are very essential and can teach you a lot of the ...
by 305405193
Tue Dec 15, 2020 8:12 pm
Forum: Lewis Acids & Bases
Topic: general conceptual question
Replies: 9
Views: 98

Re: general conceptual question

Usually I would think about the hydrogens attached or the OH's attached to determine whether it is more on the acidic or basic side, but I do have trouble determining whether it would be a strong or weak acid or base.
by 305405193
Tue Dec 15, 2020 8:08 pm
Forum: Lewis Acids & Bases
Topic: Lewis vs Bronsted
Replies: 20
Views: 110

Re: Lewis vs Bronsted

is finding the conjugate acids and bases different for each type of acid and base based on whether they are lewis or not?
by 305405193
Tue Dec 15, 2020 8:03 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Finding PH and POH
Replies: 6
Views: 72

Finding PH and POH

I know there is a set of equations to find POH and PH but are there other ways of figuring it out for visual learners?
by 305405193
Tue Dec 15, 2020 8:01 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: How to calculate the pKa
Replies: 14
Views: 124

Re: How to calculate the pKa

I utilized this video to help me gain a better understanding. https://www.youtube.com/watch?v=IQ6gHQAg_Nk
by 305405193
Tue Dec 15, 2020 7:59 pm
Forum: Student Social/Study Group
Topic: Plans for Relaxing After Finals
Replies: 98
Views: 560

Re: Plans for Relaxing After Finals

I'm planning to catch up on as many TV shows as I can since I can never watch them during the quarter and work to get money and be financially stable temporarily.
by 305405193
Tue Dec 15, 2020 7:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 87
Views: 74574

Re: Tutoring? [ENDORSED]

Yes I do believe that adds help since a lot of people don't know about the resource and it is very easy to get in as long as you meet the basic requirements of being a minority and earning a certain amount for AAP.
by 305405193
Tue Dec 15, 2020 7:56 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 337
Views: 140029

Re: Saying Thank You to Dr. Lavelle

Honestly, I had no experience in chemistry since high school ended and even then the education in high school chemistry was not that great so providing many tutoring hours and step up sessions was very helpful. I am very grateful to have a lot more background and introduction to chemistry now becaus...
by 305405193
Tue Dec 15, 2020 7:54 pm
Forum: Student Social/Study Group
Topic: Expanded Octet
Replies: 4
Views: 37

Re: Expanded Octet

Why is it that only some elements on the periodic table such as Sulfur have an expanded octet and I understand that they can have multiple bonds, but how and why are they the only ones??
by 305405193
Tue Dec 15, 2020 7:52 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 237
Views: 36169

Re: Final Jitters

Start in advance! I cannot say how many times I did not give myself enough time to study a whole quarter's worth of material and also do not forget to take care of yourself is is very necessary in order to maintain your body and your brain in a good state to take the final.
by 305405193
Tue Dec 15, 2020 7:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

Why does hamburger yield lower energy than steak?

Because it's in the ground state.
by 305405193
Tue Dec 15, 2020 7:49 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

If H2O is the formula for water, what is the formula for ice?

H2O Cubed.
by 305405193
Tue Dec 15, 2020 7:48 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

Why was the move oxygen was excited when he walked out of the singles bar?

He got Avogadro's number!!
by 305405193
Tue Dec 15, 2020 7:46 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

What did the sign to say when he found two isotopes of helium?

HeHe
by 305405193
Tue Dec 15, 2020 7:45 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

Did you hear oxygen went on a date with potassium?

It went OK.
by 305405193
Tue Dec 15, 2020 7:44 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

What do you do with the sick chemist?

If you can't Helium, you can't curium, then you might as well barium.
by 305405193
Tue Dec 15, 2020 7:43 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8731
Views: 1489073

Re: Post All Chemistry Jokes Here

Have you heard the one about a chemist who was reading a book about Helium??

He just couldn't put it down.
by 305405193
Tue Dec 15, 2020 7:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Advice from a Medical Student - Part II [ENDORSED]
Replies: 220
Views: 15928

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

This story is honestly very motivating. I feel as if certain classes make pre-meds feel as if it is not doable and it does get very scary to keep heading into a direction you are not entirely sure about. As a first generation Latina I have had many doubts about the medical system as a whole and how ...
by 305405193
Tue Dec 15, 2020 7:36 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty in Speed [ENDORSED]
Replies: 20
Views: 6159

Re: Uncertainty in Speed [ENDORSED]

If you need more help solving for these uncertainty questions this YouTube video really helped me get through these types of problems here is the link: https://www.youtube.com/watch?v=BNYz5EKXVeI
by 305405193
Tue Dec 15, 2020 7:32 pm
Forum: Student Social/Study Group
Topic: Winter Break Plans
Replies: 32
Views: 170

Re: Winter Break Plans

I am going to try and catch up on some Netflix shows and go visit my family at their house. Also, I cannot wait to work over the winter break in order to accumulate some money for next quarter.
by 305405193
Sun Oct 18, 2020 4:05 pm
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1377

Re: How are you studying?

I go through the lectures and sometimes I can't understand the topics and YouTube really helps me understands them since ai don't have time to go through all the Audio-Visual Topics. I understand what it is like to not have time and I have to stay up really late watching them but it's worth it since...
by 305405193
Sun Oct 18, 2020 3:59 pm
Forum: Properties of Electrons
Topic: Electrons Excited or Ejected
Replies: 19
Views: 144

Re: Electrons Excited or Ejected

If the electrons do not get excited or ejected do they ever get absorbed?
by 305405193
Sun Oct 18, 2020 3:44 pm
Forum: Einstein Equation
Topic: e=hv used for particles?
Replies: 9
Views: 227

Re: e=hv used for particles?

Can some one explain to me how to utilize avagrado's number? Is it usually utilized as a conversion for photons are there other ways to use this number?
by 305405193
Sun Oct 18, 2020 3:39 pm
Forum: Photoelectric Effect
Topic: What happens to absorbed photons?
Replies: 6
Views: 77

Re: What happens to absorbed photons?

Honestly I am confused about that too. I am not entirely sure. I also had trouble solving out problems that were about the photoelectric effect but I found a YouTube video that really helped me, here's the link: https://www.youtube.com/watch?v=-LECEvusk8E
by 305405193
Sun Oct 11, 2020 11:07 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Chemical Reactions Order
Replies: 31
Views: 268

Re: Balancing Chemical Reactions Order

Usually Hyrdogen and Oxygen are left last but every problem is different! A video that helped me understand balancing equations and in which order was https://www.youtube.com/watch?v=e_C-V5vJv80
by 305405193
Sun Oct 11, 2020 11:03 pm
Forum: Balancing Chemical Reactions
Topic: Combining Atoms
Replies: 7
Views: 135

Re: Combining Atoms

How do I write out a proper equation? Where can I can the charge of an atom to combine them?
by 305405193
Sun Oct 11, 2020 10:40 pm
Forum: Limiting Reactant Calculations
Topic: Limiting reactant Confusion
Replies: 2
Views: 42

Limiting reactant Confusion

How do I find the limiting reactant within an equation when it's not given?
by 305405193
Sun Oct 11, 2020 10:34 pm
Forum: Significant Figures
Topic: How to deal with significant figures in decimals with zeros.
Replies: 20
Views: 196

Re: How to deal with significant figures in decimals with zeros.

Here's also a YouTube that really helped me understand sig figs! It explains the rules with addition, subtraction, multiplication, and division. https://www.youtube.com/watch?v=BmeImtwhfj8
by 305405193
Sun Oct 11, 2020 10:27 pm
Forum: Significant Figures
Topic: Empirical vs Molecular Formula?
Replies: 7
Views: 42

Re: Empirical vs Molecular Formula?

Just making sure but let's say for example the sample mass is 110 plus or minus 10 would be an estimate? This is referencing problem 9 on the sampling hw.

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