Search found 30 matches

by Ashley Kumar 3F
Sun Nov 10, 2019 5:51 pm
Forum: Dipole Moments
Topic: dipole moments
Replies: 2
Views: 21

Re: dipole moments

It depends on how long the bond length is
by Ashley Kumar 3F
Sun Nov 10, 2019 5:50 pm
Forum: Electronegativity
Topic: Differences in Electronegativity
Replies: 5
Views: 19

Re: Differences in Electronegativity

I suppose we should remember the electronegativity trends but probably not bonds specifically.
by Ashley Kumar 3F
Sun Nov 10, 2019 5:49 pm
Forum: Bond Lengths & Energies
Topic: test 2
Replies: 16
Views: 60

Re: test 2

Nope it is not cumulative. It only tests us on material past the midterm. The final however is cumulative
by Ashley Kumar 3F
Sun Nov 10, 2019 5:48 pm
Forum: Octet Exceptions
Topic: Reasoning for Octet Exception
Replies: 9
Views: 26

Re: Reasoning for Octet Exception

The d orbital can account for the extra electrons which is why elements from period 3 and beyond can have an expanded octet
by Ashley Kumar 3F
Sun Nov 10, 2019 5:47 pm
Forum: Dipole Moments
Topic: Dipole Moment
Replies: 6
Views: 15

Re: Dipole Moment

A dipole moment is not the same a dipole because it is only temporary
by Ashley Kumar 3F
Sun Nov 03, 2019 2:10 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configuration
Replies: 4
Views: 14

Re: electron configuration

Remove them from the 4s orbital before the 3D orbital unless it is an exception of the rule such as Cr where the electron configuration is odd, but usually you always take it out of 4s first.
by Ashley Kumar 3F
Sun Nov 03, 2019 2:07 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configuration
Replies: 2
Views: 11

Re: electron configuration

When empty, the 3D orbitals energy is higher than 4s but when it fills, the energy lowers hence why you put 3D before 4s
by Ashley Kumar 3F
Sun Nov 03, 2019 2:05 pm
Forum: Bond Lengths & Energies
Topic: Strength of Bonds
Replies: 16
Views: 37

Re: Strength of Bonds

Shorter bonds are stronger. Single bonds are the longest and weakest whereas triple bonds are the shortest and strongest.
by Ashley Kumar 3F
Sun Nov 03, 2019 2:01 pm
Forum: Trends in The Periodic Table
Topic: Exceptions
Replies: 4
Views: 18

Re: Exceptions

When I went to a review session, the TA said that all the elements in the same group as oxygen follow the same exception as oxygen but it is just not as pronounced.
by Ashley Kumar 3F
Sun Nov 03, 2019 1:57 pm
Forum: Lewis Structures
Topic: Central Atom
Replies: 3
Views: 14

Re: Central Atom

Most often it is the atom with the least electro negativity and has the most valence electrons. :)
by Ashley Kumar 3F
Sun Oct 27, 2019 6:50 pm
Forum: General Science Questions
Topic: Extra Credit
Replies: 6
Views: 44

Re: Extra Credit

Not anything that Dr. Lavelle has mentioned so far
by Ashley Kumar 3F
Sun Oct 27, 2019 6:49 pm
Forum: General Science Questions
Topic: Study Guides
Replies: 6
Views: 44

Re: Study Guides

I believe there is a test bank on chemistry community you could check out
by Ashley Kumar 3F
Sun Oct 27, 2019 6:48 pm
Forum: General Science Questions
Topic: Midterms
Replies: 7
Views: 41

Re: Midterms

I believe it is everything we have learned so far. So basically from Fundamentals until now
by Ashley Kumar 3F
Sun Oct 27, 2019 6:47 pm
Forum: Lewis Structures
Topic: Video Modules
Replies: 11
Views: 63

Re: Video Modules

He hasn't mentioned anything on adding more video modules. Probably best to email and ask him
by Ashley Kumar 3F
Sun Oct 27, 2019 6:46 pm
Forum: Resonance Structures
Topic: Bond lenghts.
Replies: 11
Views: 45

Re: Bond lenghts.

Dr. Lavelle did not say anything about needing to know bond lengths so I doubt it
by Ashley Kumar 3F
Fri Oct 18, 2019 8:46 am
Forum: *Shrodinger Equation
Topic: Nodal Planes
Replies: 6
Views: 22

Re: Nodal Planes

3 nodal planes
by Ashley Kumar 3F
Fri Oct 18, 2019 8:46 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configurations
Replies: 3
Views: 25

Re: electron configurations

You would always remove the electron from the higher energy subshell
by Ashley Kumar 3F
Fri Oct 18, 2019 8:44 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Drawing Orbitals
Replies: 5
Views: 25

Re: Drawing Orbitals

He won’t but it’s nice to know what they look like to visualize them
by Ashley Kumar 3F
Fri Oct 18, 2019 8:43 am
Forum: Properties of Light
Topic: Constants and equations
Replies: 4
Views: 18

Re: Constants and equations

They will give us a sheet with the constants on them but I’d say it’s probably a good idea to start remembering them to get ahead.
by Ashley Kumar 3F
Fri Oct 18, 2019 8:41 am
Forum: Photoelectric Effect
Topic: Speed of Light
Replies: 29
Views: 115

Re: Speed of Light

Always the same number!
by Ashley Kumar 3F
Thu Oct 10, 2019 11:50 am
Forum: Limiting Reactant Calculations
Topic: Actual Yield
Replies: 6
Views: 69

Re: Actual Yield

Most of the time they will give the actual yield in the problem. If it is not given, then they probably will not ask for you to calculate the precent yield unless other information is given.
by Ashley Kumar 3F
Thu Oct 10, 2019 11:46 am
Forum: Einstein Equation
Topic: Numbers to memorize [ENDORSED]
Replies: 37
Views: 985

Re: Numbers to memorize [ENDORSED]

Not for this test, but when we are given the test, most of the basic numbers are on a little "cheat sheet" on the front of the page
by Ashley Kumar 3F
Thu Oct 10, 2019 11:45 am
Forum: Empirical & Molecular Formulas
Topic: Question E9
Replies: 4
Views: 54

Re: Question E9

You should probably learn basic names like sulfate which is SO4 because it comes up pretty often.
by Ashley Kumar 3F
Thu Oct 10, 2019 11:44 am
Forum: Balancing Chemical Reactions
Topic: Fractions
Replies: 19
Views: 118

Re: Fractions

I would say convert it to an integer
by Ashley Kumar 3F
Thu Oct 10, 2019 11:43 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test 1 [ENDORSED]
Replies: 107
Views: 1870

Re: Test 1 [ENDORSED]

I had this same question and no we do not have to, at least for the test this week.
by Ashley Kumar 3F
Thu Oct 03, 2019 8:12 pm
Forum: Molarity, Solutions, Dilutions
Topic: G. 7
Replies: 2
Views: 28

Re: G. 7

First things first, you must find out how many grams on KNO3 are on 510g. So to do that, you must divide 5.45 by 100 which gets you 0.0545. Then you multiply that by 510g. This tells you how many grams of KNO3 is in the 510g solution which is 27.8g . So then for the second part of the problem, you w...
by Ashley Kumar 3F
Thu Oct 03, 2019 8:06 pm
Forum: Balancing Chemical Reactions
Topic: Compound names
Replies: 11
Views: 80

Re: Compound names

My TA said that we do not need to know the names of the compounds yet, they will be given to us on the test
by Ashley Kumar 3F
Thu Oct 03, 2019 7:32 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Determining Molar Mass
Replies: 7
Views: 48

Re: Determining Molar Mass

Personally, I just do 15.999 but in my discussion my TA just rounded to 16 so I think it should be fine.
by Ashley Kumar 3F
Wed Oct 02, 2019 5:31 pm
Forum: Significant Figures
Topic: Sig Fig Decimal
Replies: 10
Views: 76

Re: Sig Fig Decimal

114 and 114. have the same number of sig figs but adding the "." does seem a little redundant so I'd say stick with 114. But 114.0 is not the same as 114 because it has 4 sig figs.
by Ashley Kumar 3F
Wed Oct 02, 2019 5:29 pm
Forum: Administrative Questions and Class Announcements
Topic: homework
Replies: 5
Views: 52

Re: homework

We turn in our 5 problems that we choose to do this week (week 1) on Friday, but every week after that, we must turn in our homework into our TAs during your office hours :)

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