Search found 27 matches

by JohannaPerezH3D
Sun Nov 17, 2019 11:02 pm
Forum: Student Social/Study Group
Topic: Test 2
Replies: 11
Views: 32

Re: Test 2

you should focus on intermolecular forces, vsper model, hydrogen bonding dipoles and whatever he'll add Monday
by JohannaPerezH3D
Sun Nov 17, 2019 10:59 pm
Forum: Administrative Questions and Class Announcements
Topic: test 2
Replies: 7
Views: 33

Re: test 2

I go over one for a while and then do something random and then go back and see if I can remember without looking at something
by JohannaPerezH3D
Sun Nov 17, 2019 10:58 pm
Forum: Student Social/Study Group
Topic: Class Grading
Replies: 21
Views: 150

Re: Class Grading

it's not on a curve but if in total points you accumulate 250 points or more then you have a passing grade
by JohannaPerezH3D
Sun Nov 17, 2019 10:56 pm
Forum: Student Social/Study Group
Topic: What will Test 2 be on?
Replies: 8
Views: 27

Re: What will Test 2 be on?

you should focus on intermolecular forces, vsper model, hydrogen bonding dipoles and whatever he'll add Monday
by JohannaPerezH3D
Sun Nov 17, 2019 10:54 pm
Forum: Ionic & Covalent Bonds
Topic: 2D 3.
Replies: 1
Views: 9

Re: 2D 3.

you would know this because the electronegativity difference is greater than Ba and Br than between B and Be and Br making the Ba-Br bond more ionic
by JohannaPerezH3D
Sun Nov 03, 2019 11:13 pm
Forum: Resonance Structures
Topic: 2B.15
Replies: 2
Views: 29

Re: 2B.15

so you would draw the structure with n in the center and surround with 2 o's and one cl and one o will have two bonds and the other two just one bond with N
by JohannaPerezH3D
Sun Nov 03, 2019 11:10 pm
Forum: General Science Questions
Topic: Study Tactics
Replies: 5
Views: 50

Re: Study Tactics

I feel like focus more of your time on quantum
by JohannaPerezH3D
Sun Nov 03, 2019 11:08 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Showing Work
Replies: 6
Views: 34

Re: Showing Work

my ta said that if you just write the answer then thats fine but they give partial points so if you don't know something you can write random equations to get some credit
by JohannaPerezH3D
Sun Nov 03, 2019 11:07 pm
Forum: Octet Exceptions
Topic: Octet Exceptions
Replies: 7
Views: 52

Re: Octet Exceptions

the octet rule is strictly followed by B row and as you go down not that much, an example would be PBr5
by JohannaPerezH3D
Sun Nov 03, 2019 11:05 pm
Forum: Resonance Structures
Topic: Drawing Resonance Structures
Replies: 2
Views: 39

Re: Drawing Resonance Structures

yea, i think you'll just have to draw one with the correct charge since you can rotate the bonds
by JohannaPerezH3D
Tue Oct 29, 2019 7:39 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm
Replies: 7
Views: 47

Midterm

Can someone confirm that the midterm is Nov 6 and what time and place is takes? Or where can I access this information
by JohannaPerezH3D
Sun Oct 20, 2019 11:14 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Advice for studying
Replies: 52
Views: 274

Re: Advice for studying

I've also been struggling a lot with keeping up with the material, so if anyone wants to study together and prepare lemme know but I think something that is definitely important is to prepare before the week starts
by JohannaPerezH3D
Sun Oct 20, 2019 11:12 pm
Forum: Properties of Light
Topic: What are the units of hertz
Replies: 41
Views: 211

Re: What are the units of hertz

The units for hertz is one cycle per second
by JohannaPerezH3D
Sun Oct 20, 2019 11:11 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: 1F.3
Replies: 2
Views: 21

Re: 1F.3

p^3->s^2->cl^-
by JohannaPerezH3D
Sun Oct 20, 2019 11:07 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 1E.17
Replies: 2
Views: 31

Re: 1E.17

a)4p
b)4s
c)6s
by JohannaPerezH3D
Mon Oct 14, 2019 4:44 pm
Forum: *Shrodinger Equation
Topic: psi vs psi^2
Replies: 7
Views: 47

psi vs psi^2

Hi can someone further explain the difference between psi and psi^2?
by JohannaPerezH3D
Sun Oct 13, 2019 10:53 pm
Forum: Properties of Light
Topic: 1A.3
Replies: 2
Views: 22

Re: 1A.3

so C would be interpreted as the following

because the electrical field corresponds to the amplitude; and so as the frequency decreases the waves broaden and the extent of the change decreases.
by JohannaPerezH3D
Sun Oct 13, 2019 10:47 pm
Forum: Properties of Light
Topic: 1A.3
Replies: 1
Views: 24

Re: 1A.3

C is correct because the electrical field corresponds to the amplitude; and so as the frequency decreases the waves broaden and the extent of the change decreases.
by JohannaPerezH3D
Sun Oct 13, 2019 10:45 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: #1D.21
Replies: 2
Views: 20

Re: #1D.21

a) 5d, five
b)1s, one
c) 6f, seven
d) 2p, three
by JohannaPerezH3D
Sun Oct 13, 2019 10:42 pm
Forum: Properties of Light
Topic: Balmer vs. Lyman Lines (1A.11)
Replies: 3
Views: 21

Re: Balmer vs. Lyman Lines (1A.11)

In each of these series, the principal quantum number for the lower energy number involved is the same for each absorption line. Thus, for the Lyman series, the lower energy level is n=1; for the Balmer series n=2 for Paschen series n=3 and for the Brackett series n=4.
by JohannaPerezH3D
Sun Oct 13, 2019 10:38 pm
Forum: Properties of Light
Topic: Combining Different Equations
Replies: 8
Views: 51

Re: Combining Different Equations

We are allowed to combine equations when they are equal to each other. For example x=2 for x+2=? it would be 2+2=4 because we substitute the variable for the known. This also happens for the equation you listed. Hopefully, this is what you are referring to
by JohannaPerezH3D
Sun Oct 06, 2019 9:54 pm
Forum: Student Social/Study Group
Topic: Final Jitters
Replies: 62
Views: 18495

Re: Final Jitters

Usually to calm myself, I like to do something that is fun for me. Either that be I watch a show or go to the gym just to get a breather and forget about all the anxieties. Goodluck
by JohannaPerezH3D
Sun Oct 06, 2019 9:52 pm
Forum: General Science Questions
Topic: Periodic Table
Replies: 5
Views: 51

Re: Periodic Table

I might be completely wrong so anyone correct me if I'm wrong but it might be the number of isotopes that exists?
by JohannaPerezH3D
Sun Oct 06, 2019 9:52 pm
Forum: General Science Questions
Topic: Periodic Table
Replies: 5
Views: 51

Re: Periodic Table

I might be completely wrong so anyone correct me if I'm wrong but it might be the number of isotopes that exists?
by JohannaPerezH3D
Sun Oct 06, 2019 9:47 pm
Forum: Properties of Light
Topic: Question 1A.3
Replies: 1
Views: 32

Re: Question 1A.3

I'm not sure if I misinterpreted your post but for your explanation it would be that as frequency decreases then the waves broaden and the extent of the change decreases. This is because electric field corresponds to the amplitude
by JohannaPerezH3D
Sun Oct 06, 2019 9:40 pm
Forum: Molarity, Solutions, Dilutions
Topic: G7
Replies: 2
Views: 23

Re: G7

Yes so afterwards what you would do is find the mass of water by subtracting 510g-27.8g= 482.2G H2O

and the way to describe it would be that you measure 482g H2O on a balance and then pour it in a beaker. Then you weigh 27.8g of KNO3 and mix it with water until it dissolves.
by JohannaPerezH3D
Sun Oct 06, 2019 4:49 pm
Forum: SI Units, Unit Conversions
Topic: 50 Min test
Replies: 4
Views: 40

50 Min test

I'm barley learning how to navigate Chemistry community so sorry if this post is not in the correct place buy anyways..

For the 50 min test will it take place during class (if so when) or during our discussion section??

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