Search found 95 matches

by Namratha Gujje
Sun Feb 28, 2021 7:32 pm
Forum: Student Social/Study Group
Topic: What organizations are you guys in?
Replies: 22
Views: 74

Re: What organizations are you guys in?

I am a part of AMWA (American Medical Women's Association) and I have also been working as a research assistant in a psych lab. I am not thinking of adding anything to do that though because I am already kind of overwhelmed with school.
by Namratha Gujje
Sun Feb 28, 2021 7:29 pm
Forum: Balancing Redox Reactions
Topic: Balancing Reactions
Replies: 22
Views: 49

Re: Balancing Reactions

^I agree. If you are referring to the order in which the reactants and products should be written, I don't think the order should matter much. As long as the reactants are with the reactants and the products are with the products then you should be good.
by Namratha Gujje
Sun Feb 28, 2021 7:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Step up vs workshops
Replies: 16
Views: 53

Re: Step up vs workshops

Step-Ups usually get more down to the basics. The UAs go slower through the problems and explain the basics of the main concepts we are learning. The workshops are more advanced. The UAs work through more difficult book problems or past midterm/final problems at a faster pace.
by Namratha Gujje
Sun Feb 28, 2021 7:22 pm
Forum: Student Social/Study Group
Topic: Book Recommendations
Replies: 100
Views: 256

Re: Book Recommendations

I've been needing new book recommendations so this thread is very much needed. I have been just rereading Percy Jackson books when I have the time lol. I have heard that the book Six of Crows is really good. That is going to be my next book, maybe you all will like it too.
by Namratha Gujje
Sun Feb 28, 2021 7:20 pm
Forum: Student Social/Study Group
Topic: Playlist
Replies: 29
Views: 70

Re: Playlist

I've been listening to a lot of telugu (Indian) music recently so I can't really recommend something that you all might like haha. But a group chemistry playlist would definitely be fun to have. We should definitely make one.
by Namratha Gujje
Mon Feb 22, 2021 11:55 pm
Forum: Student Social/Study Group
Topic: Chem 14B Final
Replies: 83
Views: 211

Re: Chem 14B Final

Hi!

I would just say start studying as soon as possible. Do the textbook problems, go to UA sessions and ask the UAs, TA's or the professor for help if you are confused by any topic of chemistry.
by Namratha Gujje
Mon Feb 22, 2021 11:52 pm
Forum: Student Social/Study Group
Topic: We made it through Midterm 2!
Replies: 64
Views: 198

Re: We made it through Midterm 2!

Congratulations to us! Hope everyone had a fantastic weekend to rest and prepare for these next couple of weeks. Good Luck to everyone, we need to continue working hard in this final stretch!
by Namratha Gujje
Mon Feb 22, 2021 11:49 pm
Forum: Van't Hoff Equation
Topic: Celcius vs Kelvin for T1 and T2
Replies: 61
Views: 307

Re: Celcius vs Kelvin for T1 and T2

It would be the safest option to just stick with Kelvin unless it specifically says otherwise.
by Namratha Gujje
Mon Feb 22, 2021 11:48 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 34
Views: 102

Re: Final

Hi! I honestly was hoping to do a lot better on the final as well so I would suggest for the both of us to study earlier for the final. As well as starting to study earlier, we should also start reviewing/redoing the assigned textbook problems. Also going to office hours to get help on concepts that...
by Namratha Gujje
Mon Feb 22, 2021 11:45 pm
Forum: Student Social/Study Group
Topic: Fave food
Replies: 132
Views: 283

Re: Fave food

Currently I am craving brownies with ice cream!!!
by Namratha Gujje
Sun Feb 14, 2021 11:11 pm
Forum: Student Social/Study Group
Topic: Valentine's Day Long Weekend!
Replies: 30
Views: 100

Re: Valentine's Day Long Weekend!

Happy Valentine's Day!

Your message is soo sweet and I hope you had an amazing Valentine's Day! I love you too!

Good Luck on your midterm next week! You are going to do amazing!
by Namratha Gujje
Sun Feb 14, 2021 11:07 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Sapling Wk 5/6 Q7
Replies: 2
Views: 12

Re: Sapling Wk 5/6 Q7

*calculate the difference in mass and divide that by molar mass to get mols of the molecule.
*Convert 500 W to kJ

DeltaH = kJ/moles

DeltaS = deltaH/Temperature
by Namratha Gujje
Sun Feb 14, 2021 11:02 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Spontaneity of a System
Replies: 32
Views: 81

Re: Spontaneity of a System

If the change in Gibbs Free energy in a reaction is negative then the reaction is going to spontaneous. You can use the reaction deltaG = delta H - T*delta S to figure out if H and S need to positive or negative for the reaction to be spontaneous.
by Namratha Gujje
Sun Feb 14, 2021 11:00 pm
Forum: Student Social/Study Group
Topic: Points needed to pass?
Replies: 64
Views: 229

Re: Points needed to pass?

If you get a total of 200 points out of 400 then you can pass the class with a C-
by Namratha Gujje
Sun Feb 14, 2021 10:59 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8791
Views: 1493206

Re: Post All Chemistry Jokes Here

A Valentine's Day Pun: A hug with u is just toxic (hg)
by Namratha Gujje
Sun Feb 14, 2021 10:55 pm
Forum: Student Social/Study Group
Topic: Midterm 2 Nerves
Replies: 40
Views: 166

Re: Midterm 2 Nerves

I am so nervous for this midterm. I have to spend so much studying this week. You all will do amazing though. You are working hard everyday for this class and your other classes. You are all geniuses!
by Namratha Gujje
Sun Feb 07, 2021 11:30 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8791
Views: 1493206

Re: Post All Chemistry Jokes Here

Q: What do you do with a dead chemist

A: you barium
by Namratha Gujje
Sun Feb 07, 2021 11:28 pm
Forum: Student Social/Study Group
Topic: Book Recommendations
Replies: 100
Views: 256

Re: Book Recommendations

I need new book recommendations haha. I've just been rereading my favorite books over this quarantine. Right now I am reading the Heroes of Olympus books by Rick Riordan.
by Namratha Gujje
Sun Feb 07, 2021 11:26 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Closed System
Replies: 43
Views: 92

Re: Closed System

A closed system is when it is sealed, it does not mean that there cannot be energy transfers. In an isolated system it is both sealed and insulated and there cannot be any energy transfers.
by Namratha Gujje
Sun Feb 07, 2021 11:24 pm
Forum: Ideal Gases
Topic: Chem BL
Replies: 100
Views: 444

Re: Chem BL

I was planning on taking 14BL by itself next quarter and then take 14C fall of 2021, but now I might just take 14C and 14BL together. I guess it really would depend on how hard the people taking it right now say it is. I don't want to overload myself with chemistry.
by Namratha Gujje
Sun Feb 07, 2021 11:22 pm
Forum: Student Social/Study Group
Topic: Fav Shows of the Moment
Replies: 104
Views: 249

Re: Fav Shows of the Moment

I have been watching Teen Wolf which honestly is a really good show. I wasn't expecting it to be this good when I first started it. 10/10 would recommend.
by Namratha Gujje
Mon Feb 01, 2021 1:05 pm
Forum: Administrative Questions and Class Announcements
Topic: Do CC work for bruin cast videos
Replies: 6
Views: 24

Re: Do CC work for bruin cast videos

I don't see an option for CC on bruincast. Maybe that can be something arranged if we talk to our TA's
by Namratha Gujje
Mon Feb 01, 2021 1:04 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm #1 Results
Replies: 18
Views: 113

Re: Midterm #1 Results

I haven't heard anything from Lavelle specifically, but I know that it usually takes about a week for midterm results to come out.
by Namratha Gujje
Mon Feb 01, 2021 1:03 pm
Forum: Administrative Questions and Class Announcements
Topic: Grading scale
Replies: 29
Views: 220

Re: Grading scale

Typically for UCLA 93 or above is an A and anything below a 93 would be an A-. I think that is what Lavelle follows as well.
by Namratha Gujje
Mon Feb 01, 2021 1:01 pm
Forum: Student Social/Study Group
Topic: Work Life Balance
Replies: 44
Views: 164

Re: Work Life Balance

I honestly complete understand what you are going through. I definitely feel the same way. I feel like I am constantly working and can barely make time for myself or to do something fun or relaxing for myself. I am currently trying to create that balance though. I think something that I am going to ...
by Namratha Gujje
Mon Feb 01, 2021 12:57 pm
Forum: Administrative Questions and Class Announcements
Topic: Can We Review our Exams?
Replies: 69
Views: 249

Re: Can We Review our Exams?

Last quarter for 14A we weren't allowed to review our tests by ourselves. We could only do it during the TA's office hours. I am assuming that this is how its going to happen this quarter as well, so I would ask your TA is you can go over the midterm with them.
by Namratha Gujje
Sun Jan 24, 2021 7:17 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Ice Tables
Replies: 28
Views: 92

Re: Ice Tables

The way that I have been thinking about it is putting -x when there is a initial concentration value and putting +x when the initial concentration of 0.
by Namratha Gujje
Sun Jan 24, 2021 7:16 pm
Forum: Student Social/Study Group
Topic: Midterm
Replies: 21
Views: 101

Re: Midterm

Should be around 50 minutes.
by Namratha Gujje
Sun Jan 24, 2021 7:12 pm
Forum: Administrative Questions and Class Announcements
Topic: Periodic Tables on Midterm
Replies: 23
Views: 85

Re: Periodic Tables on Midterm

You can have a periodic table, the list of equations and calculator for the midterm.
by Namratha Gujje
Sun Jan 24, 2021 7:09 pm
Forum: Student Social/Study Group
Topic: Favorite Music
Replies: 104
Views: 297

Re: Favorite Music

I have been listening to Kehlani and other R&B artists for American Music. But right now I have been listening to a lot of Hindi and Telugu Music (Indian Music) which can been really nice haha.
by Namratha Gujje
Sun Jan 24, 2021 7:02 pm
Forum: Administrative Questions and Class Announcements
Topic: midterm
Replies: 11
Views: 61

Re: midterm

I'm assuming that it will be the same style as 14A. So using 2 devices and having respondus downloaded onto your computer.
by Namratha Gujje
Sun Jan 24, 2021 6:59 pm
Forum: Student Social/Study Group
Topic: Calculators
Replies: 34
Views: 120

Re: Calculators

Yes! Calculators are allowed for the exams. That includes graphing calculators too.
by Namratha Gujje
Sun Jan 17, 2021 4:12 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Week 1 Sapling 3
Replies: 11
Views: 69

Re: Week 1 Sapling 3

Yes! That is the way I solved this problem. I square rooted each side of the equation which made solving much easier. I didn't have to use the quadratic formula.
by Namratha Gujje
Sun Jan 17, 2021 4:10 pm
Forum: Student Social/Study Group
Topic: Exercising Our Minds and Bodies
Replies: 120
Views: 622

Re: Exercising Our Minds and Bodies

I like to do HIIT workouts at home. Compared with other forms of exercise, I find this to be the most beneficial and relaxing for me. After working out i definitely feel refreshed and much less stressed than I felt before. I also love to do Yoga. Doing Yoga helps me out a lot if I ever feel anxious ...
by Namratha Gujje
Sun Jan 17, 2021 3:57 pm
Forum: Student Social/Study Group
Topic: Comfort Movies
Replies: 128
Views: 357

Re: Comfort Movies

My comfort movies will always be the Harry Potter movies. I have always loved the Harry Potter series. My siblings and I would watch the movies together every time my sister came home from college. That is one of the ways we bonded when we were younger and it continues to bring us closer to this day.
by Namratha Gujje
Sun Jan 17, 2021 2:53 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Approximations
Replies: 4
Views: 29

Re: Approximations

When a value is less than x10-4, it is close enough to zero to the point where if we were to subtract 0.20 - 1x10-4, it wouldn't make much a difference on the 0.20 value. Because of this, we can approximate that 0.20 - 1x10-4 is still 0.20.
by Namratha Gujje
Sun Jan 17, 2021 2:50 pm
Forum: Student Social/Study Group
Topic: Study Group
Replies: 14
Views: 54

Re: Study Group

Yes! This is such a good idea and would be very helpful for me!
by Namratha Gujje
Sat Jan 09, 2021 5:44 pm
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Community Points
Replies: 13
Views: 77

Re: Chemistry Community Points

The points don't carry over. You would have to complete 50 new points in total over the next 10 weeks.
by Namratha Gujje
Sat Jan 09, 2021 5:36 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Using bar or atm in Calculations
Replies: 4
Views: 17

Re: Using bar or atm in Calculations

I agree with Sarah! We should always use the units specified in the problem. However, I think in class Professor said that bar is used with partial pressure, but since it is so similar to atm that we usually just use atm. Maybe am I mistaken.
by Namratha Gujje
Sat Jan 09, 2021 5:30 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Impacts of Increasing Pressure
Replies: 4
Views: 13

Re: Impacts of Increasing Pressure

Increasing pressure causes the volume to decrease therefore causing the concentration to change. This means that there will be a shift to bring the reaction back to equilibrium.
by Namratha Gujje
Sat Jan 09, 2021 5:25 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Clarification of Reaction equilibrium
Replies: 6
Views: 41

Re: Clarification of Reaction equilibrium

Yes! When something changes like concentration, volume or pressure the reaction will not be in equilibrium anymore, but due to Le Chatalier's principle, something will adjust to bring the reaction back to equilibrium.
by Namratha Gujje
Sat Jan 09, 2021 5:22 pm
Forum: Administrative Questions and Class Announcements
Topic: Recording the UA Workshops
Replies: 3
Views: 31

Re: Recording the UA Workshops

From what I know they do not records their sessions, but maybe we can ask them to record them and put them on chem community. As mentioned before, some UA's do share the questions and answers to the worksheets that they worked on during their sessions. That may be a helpful alternative if they can't...
by Namratha Gujje
Sat Dec 12, 2020 6:19 pm
Forum: Student Social/Study Group
Topic: SATURDAY Q+A W/ MEL
Replies: 5
Views: 132

Re: SATURDAY Q+A W/ MEL

Its saying that that the host needs to start the meeting for me
by Namratha Gujje
Sat Dec 12, 2020 4:02 pm
Forum: Student Social/Study Group
Topic: SATURDAY Q+A W/ MEL
Replies: 5
Views: 132

Re: SATURDAY Q+A W/ MEL

Hi! Can you please go over how to tell if an acid is a strong acid or a weak acid and how to tell if something is a strong base or a weak base? Or like if given two molecules how to tell which is stronger/weaker? Thank You!
by Namratha Gujje
Thu Dec 10, 2020 4:02 pm
Forum: Identifying Acidic & Basic Salts
Topic: Titration
Replies: 4
Views: 43

Re: Titration

From what I know I don't think so. We need to use an acid and base pair in order to do titration and if we don't know if its an acid or a base then we wouldn't be able to use its opposite to find the concentration. I think we would need to know if it was an acid or a base, along with the samples vol...
by Namratha Gujje
Thu Dec 10, 2020 4:00 pm
Forum: Electronegativity
Topic: ionic bonds
Replies: 4
Views: 40

Re: ionic bonds

Electronegativity decreases as we go down a period and Ba is much lower in group 2 meaning that it has a lower eneg than Be. Because of this, the electronegativuty difference would be greater in BaBr2 making it the one that is the most ionic.
by Namratha Gujje
Thu Dec 10, 2020 3:55 pm
Forum: Student Social/Study Group
Topic: PUSH THROUGH!!
Replies: 29
Views: 201

Re: PUSH THROUGH!!

Thank You for saying that! It definitely needed to be said. We all got this! We are all smart and hardworking! Good luck to everyone! You all are going to do amazing!
by Namratha Gujje
Thu Dec 10, 2020 3:49 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: calculating pH or Poh
Replies: 5
Views: 51

Re: calculating pH or Poh

From what I know, we need Molarity when we are solving for pH of H+ molecule. pH = -log[H+]. pOH = -log[OH-]. For those equations we would need concentrations.
pH + pOH = 14. These equations show the relationship between pH, pOH and these equations can be used to find them.
by Namratha Gujje
Thu Dec 10, 2020 3:44 pm
Forum: *Shrodinger Equation
Topic: Schrodinger wave function theory
Replies: 3
Views: 48

Re: Schrodinger wave function theory

Hi! I was in a review session today where a TA said that the Schrodinger's wave function is used to find the quantum numbers for an electron. Essentially it helps find the position of the electrons. Apparently we shouldn't see too much of it on the final. Sorry I don't have a practice problem.
by Namratha Gujje
Thu Dec 10, 2020 3:37 pm
Forum: Properties of Light
Topic: Minimum Energy
Replies: 4
Views: 60

Re: Minimum Energy

The work function is the amount of energy required to remove an electron. The threshold frequency is the frequency of the work function.
by Namratha Gujje
Sun Dec 06, 2020 3:30 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 6
Views: 86

Re: Final

We will stop learning new material on Wednesday and Friday will be a review session with professor Lavelle.
by Namratha Gujje
Sun Dec 06, 2020 3:29 pm
Forum: Naming
Topic: Order of Ligands/naming
Replies: 28
Views: 147

Re: Order of Ligands/naming

You would name them in alphabetical order :)
by Namratha Gujje
Sun Dec 06, 2020 3:28 pm
Forum: Student Social/Study Group
Topic: How are you?
Replies: 117
Views: 880

Re: How are you?

I am kind of stressed for finals, but other than that I am doing okay. Waiting for the quarter to be over basically. Can't wait til Christmas!
by Namratha Gujje
Sun Dec 06, 2020 3:26 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Molecules with lone pairs
Replies: 5
Views: 86

Re: Molecules with lone pairs

Lone pairs are more repulsive than bonded electrons, and therefore they take more space than bonded electrons.
by Namratha Gujje
Sun Dec 06, 2020 3:25 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 3
Views: 60

Re: Final

From what I heard, the topics that we spent the most time on during class/lectures will show up the most often on the final.
by Namratha Gujje
Sat Nov 28, 2020 12:24 pm
Forum: Hybridization
Topic: e density
Replies: 30
Views: 170

Re: e density

Yes, every lone pair and every bond is considered to be one region of electron density. Double bonds and triple bonds count as one as well. More bonds does not equal more regions of electron density.
by Namratha Gujje
Sat Nov 28, 2020 12:22 pm
Forum: Bond Lengths & Energies
Topic: Ionic Character
Replies: 12
Views: 3815

Re: Ionic Character

Determining greater ionic character can be done by seeing which molecule has the greater difference in electronegativity. The trend for electronegativity increases along a group and decreases down a period. Based on this rule, we can assume that NaBr has more ionic character as there is a larger ene...
by Namratha Gujje
Sat Nov 28, 2020 12:15 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: H2O VSEPR
Replies: 27
Views: 153

Re: H2O VSEPR

H20 has a bent shape due to the two lone pairs on the oxygen. Due to electron repulsion the hydrogens bonds would be pushed down.
by Namratha Gujje
Sat Nov 28, 2020 12:14 pm
Forum: Student Social/Study Group
Topic: Final Study
Replies: 32
Views: 221

Re: Final Study

I would suggest redoing the textbook problems that were assigned to us and reading the textbook. Something that I like to do is create flashcards to quiz myself on key concepts. If more people are interested, we could also form a study group to discuss difficult topics and work on problems together.
by Namratha Gujje
Sat Nov 28, 2020 12:09 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8791
Views: 1493206

Re: Post All Chemistry Jokes Here

Q: Why was the mole of oxygen molecules excited when he walked out of the singles bar?
A: He got Avogadro's number!
by Namratha Gujje
Sat Nov 21, 2020 4:03 pm
Forum: General Science Questions
Topic: bond lengths
Replies: 10
Views: 153

Re: bond lengths

The bond lengths are not the same length in every molecule with a double bond. The lengths vary per molecule. There are a lot of factors that determine the lengths of the bonds.
by Namratha Gujje
Sat Nov 21, 2020 4:01 pm
Forum: General Science Questions
Topic: Which would have lower ionization energy?
Replies: 13
Views: 125

Re: Which would have lower ionization energy?

Chlorine would have a lower ionization energy because the trend is that IE decreases as you go along a period and down a group. IE is the amount of energy it takes to remove the outermost electron on an atom. There is more IE for smaller atoms because their electrons are more tightly held together. ...
by Namratha Gujje
Sat Nov 21, 2020 3:50 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Expanded Octets
Replies: 9
Views: 89

Re: Expanded Octets

One of the UA's during a Step-Up session said that typically elements that come after Phosphorous and Sulfur in the P-Block can have expanded octets.
by Namratha Gujje
Sat Nov 21, 2020 3:48 pm
Forum: Ionic & Covalent Bonds
Topic: Molecule size and ionic character
Replies: 13
Views: 143

Re: Molecule size and ionic character

I look at the electronegativity difference of the two atoms to determine ionic character. The larger the difference is the more ionic character the molecule has. I don't think that the size of the molecule has an affect on the ionic character.
by Namratha Gujje
Sat Nov 21, 2020 3:44 pm
Forum: Ionic & Covalent Bonds
Topic: Covalent Character
Replies: 14
Views: 93

Re: Covalent Character

The one with the most covalent character would be the two molecules with the smallest electronegative values. The one with the smallest electronegativity difference is the answer.
by Namratha Gujje
Sun Nov 15, 2020 10:35 pm
Forum: Electronegativity
Topic: determining electronegativity
Replies: 31
Views: 264

Re: determining electronegativity

I don't think we need to know a way to calculate the electronegativity of an atom. We do need to know the electronegativity trend on the periodic table of elements. It also wouldn't hurt to know what the most electronegative elements are. They are fluorine, oxygen, and nitrogen. I like to remember t...
by Namratha Gujje
Sun Nov 15, 2020 10:30 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Van der Waals vs London Dispersion
Replies: 10
Views: 40

Re: Van der Waals vs London Dispersion

They are interchangeable terms. Other names for this include induced dipole-induced dipole. All of these terms are referencing the same thing.
by Namratha Gujje
Sun Nov 15, 2020 10:29 pm
Forum: Resonance Structures
Topic: Sapling #4
Replies: 6
Views: 36

Re: Sapling #4

You need to make sure that the overall formal charge of the structure is the same throughout each resonance structure and you need to make sure that the octet rules are being followed for each atom.
by Namratha Gujje
Sun Nov 15, 2020 10:23 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: lodon dispersion forces
Replies: 8
Views: 17

Re: lodon dispersion forces

Another name for these London Dispersion Forces is induced dipole-induced dipole bonds. These are the weakest bonds because they are temporary dipoles. This makes it easier for those bonds to be broken making them the weakest.
by Namratha Gujje
Sun Nov 15, 2020 10:19 pm
Forum: Resonance Structures
Topic: Resonance
Replies: 11
Views: 119

Re: Resonance

The most favorable structure can be determined by the formal charge of each atom of the structure. We would want as much atoms as possible to have a formal charge of zero.
by Namratha Gujje
Sat Nov 07, 2020 6:48 pm
Forum: Electronegativity
Topic: Electronegativity Table/Chart in Lecture
Replies: 14
Views: 56

Re: Electronegativity Table/Chart in Lecture

I don't think that we need to memorize the electronegativity values for all elements. I think that he expects us to know the electronegativity trend which is the same thing as the ionization energy trend.
by Namratha Gujje
Sat Nov 07, 2020 6:46 pm
Forum: Photoelectric Effect
Topic: Units for energy
Replies: 11
Views: 145

Re: Units for energy

1/seconds applies to hertz only. Joules is equal to kg*m^2/S^2
by Namratha Gujje
Sat Nov 07, 2020 6:39 pm
Forum: Administrative Questions and Class Announcements
Topic: Reviewing Answers for Midterm 1
Replies: 13
Views: 133

Re: Reviewing Answers for Midterm 1

I was wondering the same thing. It would be very beneficial if I could see where I went wrong on some of the questions on the midterm. At least we will see them before the final exam. That would be very helpful.
by Namratha Gujje
Sat Nov 07, 2020 6:36 pm
Forum: Lewis Structures
Topic: Sapling Weeks 5-6 HW Question 2
Replies: 7
Views: 64

Re: Sapling Weeks 5-6 HW Question 2

I think that the issue here is that you calculated the incorrect formal charges. The equation for finding the formal charge is FC = Valence Electrons - (# of bonds/2 + Lone Pairs). If you were to do that for NH4+, then you should get a different numbers. For H it would be FC = 1 - (2/2 + 0). The FC ...
by Namratha Gujje
Sat Nov 07, 2020 6:24 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Can you have the same 3 quantem number but not the 4 same quantem numbers
Replies: 12
Views: 65

Re: Can you have the same 3 quantem number but not the 4 same quantem numbers

Only two electrons can have the same first three quantum numbers. No two electrons have the same 4 quantum numbers and this is because the last number, indicating electron spin, is different. The two electrons with the same 3 quantum numbers will have a different 4th quantum number.
by Namratha Gujje
Sun Nov 01, 2020 6:40 pm
Forum: Student Social/Study Group
Topic: Sappling #25
Replies: 4
Views: 46

Re: Sappling #25

In order to find the energy of a photon you can use E = hc/wavelength and to find the energy of the electron you would have to use the kinetic energy formula. In order to do that you would first have to find the velocity which you can do by using the de broglie's equation. Make sure to convert micro...
by Namratha Gujje
Sun Nov 01, 2020 6:35 pm
Forum: Student Social/Study Group
Topic: Sampling HW #7
Replies: 2
Views: 17

Re: Sampling HW #7

The enthalpy of fusion of water is 333.6 J/g. You would multiply the the amount of ice we have which is 493 grams to find out how much energy we need to completely melt the ice. After finding this number, we would find out how much energy there is in a photon with the wavelength 787 nm. We would use...
by Namratha Gujje
Sun Nov 01, 2020 6:26 pm
Forum: Properties of Light
Topic: Is c always the speed of light?
Replies: 88
Views: 506

Re: Is c always the speed of light?

Yes, for this equation c will always be the speed of light.
by Namratha Gujje
Sun Nov 01, 2020 6:24 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Question 26 Sapling
Replies: 5
Views: 65

Re: Question 26 Sapling

In order to solve this problem, you would have to use Heisenberg's uncertainty equation which is. You would need to rearrange this equation so that you are solving for the uncertainty in the electrons velocity. This would just mean that v is greater than h/(4pi)(mass)(Position). Mass of an electron ...
by Namratha Gujje
Sun Nov 01, 2020 6:19 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Radius
Replies: 8
Views: 49

Re: Radius

The more electrons that there are the smaller the radius is. The protons are tight and are pulled to the nucleus. This is opposite for electrons. If there are more electrons, or if there are free electrons then the radius will be bigger.
by Namratha Gujje
Sat Oct 24, 2020 8:51 pm
Forum: Photoelectric Effect
Topic: Calculations
Replies: 18
Views: 124

Re: Calculations

I usually use all the digits, and wait to round at the end of the problem. I also keep track of the sig figs throughout the problem so that I know what I need to round to at the end of the problem. This is what I noticed my TA do as when he solved practice problems during our discussion section.
by Namratha Gujje
Sat Oct 24, 2020 8:48 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Light's effects
Replies: 8
Views: 100

Re: Light's effects

it is due to the size. We can only measure how light affects objects at the atomic level and this is because the baseball is too big to notice such a change. Also, the electron's position can vary and this allows us to measure the way light affects its momentum.
by Namratha Gujje
Sat Oct 24, 2020 8:45 pm
Forum: Balancing Chemical Reactions
Topic: States of matter in chem equations
Replies: 13
Views: 147

Re: States of matter in chem equations

I am pretty sure that we do need to include the states of matters. It will never hurt us if we do. If a compound can be dissolved by water then it is aqueous. For the most part, we need to use out best judgement and any patterns that we notice during previous chemical reactions.
by Namratha Gujje
Sat Oct 24, 2020 8:41 pm
Forum: SI Units, Unit Conversions
Topic: Midterm
Replies: 26
Views: 230

Re: Midterm

I know that is a multiple choice exam and that it will given during our discussion section. This means that we only have 50 minutes to complete the exam. The number of questions was never specified, but the questions were made by the TA's and some were made by Professor.
by Namratha Gujje
Sat Oct 24, 2020 8:39 pm
Forum: Student Social/Study Group
Topic: Chem Community Questions
Replies: 6
Views: 74

Re: Chem Community Questions

5 posts on chemistry community are due every Sunday by 11:59 PM
by Namratha Gujje
Sun Oct 18, 2020 1:35 am
Forum: General Science Questions
Topic: Sapling Homework
Replies: 14
Views: 180

Re: Sapling Homework

Week 2, 3, and 4 homework is all due on Sunday of week 4. I would still recommend getting it all done beforehand so that you can practice the math/concepts that we will be tested on. Doing the homework will only make us more prepared for the midterm.
by Namratha Gujje
Sun Oct 18, 2020 1:31 am
Forum: Photoelectric Effect
Topic: Light Intensity
Replies: 23
Views: 111

Re: Light Intensity

I believe so! The light is only getting brighter, it is not changing its frequency/wavelength.
by Namratha Gujje
Sun Oct 18, 2020 1:27 am
Forum: Student Social/Study Group
Topic: How do you study?
Replies: 19
Views: 171

Re: How do you study?

I am definitely having a hard time staying focused with this distance learning thing. I usually like to work at the library when I need to focus and get things done. i can't do that now, so I am trying to implement new study practices and I am made myself a study area where I can stay focused. As fo...
by Namratha Gujje
Sun Oct 18, 2020 1:12 am
Forum: General Science Questions
Topic: Kelvin
Replies: 8
Views: 64

Re: Kelvin

You would just say 273 Kelvin. Degrees aren't used for Kelvin
by Namratha Gujje
Sun Oct 18, 2020 1:10 am
Forum: Student Social/Study Group
Topic: How are you studying?
Replies: 203
Views: 1394

Re: How are you studying?

Personally, I like to make my own study guide. I will organize a document filled with information that I put into my own words on a google document or something. After making the study guide, I test myself on the most relevant information. Taking good notes, and reviewing the notes are also very imp...
by Namratha Gujje
Thu Oct 08, 2020 5:34 pm
Forum: Empirical & Molecular Formulas
Topic: difference between empirical and molecular
Replies: 15
Views: 72

Re: difference between empirical and molecular

You would know that the empirical and molecular formulas are equal if they have the same molar mass. When you are solving a problem that asks something about both the molecular and empirical formula you should given the molar masses for both or should have enough information to solve for them.
by Namratha Gujje
Thu Oct 08, 2020 5:29 pm
Forum: SI Units, Unit Conversions
Topic: Sapling Assignment 1 Question 6
Replies: 16
Views: 129

Re: Sapling Assignment 1 Question 6

You have to convert the grams value into moles. The problem says you have 2.92 grams of CuNO3 so you find the molar mass of CuNO3 and divide those two values to find moles: 2.92/125.55 = 0.023 moles of CuNO3. From here you can easily find the volume by plugging our known values 0.023 moles/0.260 M =...
by Namratha Gujje
Thu Oct 08, 2020 5:15 pm
Forum: Limiting Reactant Calculations
Topic: Significant figures when using scientific notion
Replies: 5
Views: 57

Re: Significant figures when using scientific notion

Yes! It does depend on the problem!
by Namratha Gujje
Thu Oct 08, 2020 5:13 pm
Forum: SI Units, Unit Conversions
Topic: Sig figs and molar mass
Replies: 18
Views: 130

Re: Sig figs and molar mass

Hi! I usually use the exact value given on the periodic table. For the homework I tend to use the one on sapling so I can use values that they have. However, at the end of the problem I would round the answer to the lowest amount of sig figs in the problem.
by Namratha Gujje
Thu Oct 08, 2020 5:06 pm
Forum: Significant Figures
Topic: Sapling HW #4
Replies: 31
Views: 350

Re: Sapling HW #4

In the number 950000, the first two numbers are significant since they are non-zero values. The zeros that come after it are trailing zeros so they are not considered significant. The only way they would be considered significant is if there was a decimal point after the final zero. 80060 has 4 sig ...

Go to advanced search