Search found 55 matches
- Sat Dec 07, 2019 3:05 pm
- Forum: Hybridization
- Topic: Lone pairs
- Replies: 4
- Views: 325
Re: Lone pairs
what do I look at to determine the hybridization of lone pairs?
- Sat Dec 07, 2019 2:56 pm
- Forum: General Science Questions
- Topic: Final Content
- Replies: 3
- Views: 416
Re: Final Content
I would make sure you are really familiar with previous midterm material because the questions are most likely going to tie into each other.
- Wed Dec 04, 2019 1:37 pm
- Forum: Naming
- Topic: latin names
- Replies: 3
- Views: 226
Re: latin names
When the coordination compound has a negative charge we would usually add the suffix -ate to the Lewis Acid, but for iron we would change it to ferrate
- Wed Dec 04, 2019 1:31 pm
- Forum: Bronsted Acids & Bases
- Topic: Strong Acids and Bases
- Replies: 4
- Views: 379
Re: Strong Acids and Bases
I feel you should definitely familiarize yourself with them and understand how to figure which one a molecule is.
- Wed Dec 04, 2019 1:30 pm
- Forum: Bronsted Acids & Bases
- Topic: How to determine whether a molecule is an acid or a base
- Replies: 5
- Views: 302
Re: How to determine whether a molecule is an acid or a base
because it has one lone pair its most likely going to donate it and that what considers a base.
- Wed Dec 04, 2019 1:26 pm
- Forum: Naming
- Topic: Tips on Naming
- Replies: 5
- Views: 392
Re: Tips on Naming
Brandon Valafar wrote:There is a sheet on Lavelle's website called "Naming Coordination Compounds" which gives you a list of the common compounds/ligands in Chem 14A and their names. I put these on flashcards and that helped me a lot.
thank you!!
- Wed Dec 04, 2019 1:25 pm
- Forum: Naming
- Topic: Memorization
- Replies: 6
- Views: 356
Re: Memorization
yes
- Wed Dec 04, 2019 1:24 pm
- Forum: Air Pollution & Acid Rain
- Topic: What do we need to know?
- Replies: 4
- Views: 367
Re: What do we need to know?
does anyone know if its going to be more focused on material after the mid-term or is it just going to be random?
- Wed Dec 04, 2019 1:23 pm
- Forum: Sigma & Pi Bonds
- Topic: Promotion
- Replies: 5
- Views: 599
Re: Promotion
what type of problem deal with promotion? what exactly is this for?
- Wed Dec 04, 2019 1:21 pm
- Forum: Naming
- Topic: Tips on Naming
- Replies: 5
- Views: 392
Re: Tips on Naming
where can we find Lavelle "translations"?
- Wed Dec 04, 2019 1:15 pm
- Forum: Bronsted Acids & Bases
- Topic: CaO
- Replies: 10
- Views: 1504
Re: CaO
strong base in solution
- Wed Dec 04, 2019 1:13 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Test 2 Average
- Replies: 3
- Views: 205
Re: Test 2 Average
also does anyone know when we will get test 2 back ?
- Wed Dec 04, 2019 1:12 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: week 9 hw problems
- Replies: 4
- Views: 270
Re: week 9 hw problems
week 9 homework can be coordination compound and week 10 can be acids and bases or however you would like to do them I dont think it has to be all acids and bases
- Wed Dec 04, 2019 1:09 pm
- Forum: Naming
- Topic: Roman numerals
- Replies: 7
- Views: 500
Re: Roman numerals
The Roman numeral must have the same value as the charge of the ion?
- Wed Dec 04, 2019 1:07 pm
- Forum: Properties of Light
- Topic: Light as a Wave
- Replies: 8
- Views: 566
Re: Light as a Wave
Light behaves as a wave when it undergoes reflection, refraction, and diffraction just like waves.
- Wed Dec 04, 2019 1:05 pm
- Forum: Lewis Acids & Bases
- Topic: Strong Acids
- Replies: 6
- Views: 373
Re: Strong Acids
What makes them strong is the fact that they completely dissociate into their ions (H+ and an anion) when they are mixed with water.
- Wed Dec 04, 2019 1:01 pm
- Forum: Amphoteric Compounds
- Topic: amphiprotic and amphoteric
- Replies: 9
- Views: 687
Re: amphiprotic and amphoteric
An amphiprotic substance is one which can both donate hydrogen ions and also accept them.
Amphoteric means that they have reactions as both acids and bases.
Amphoteric means that they have reactions as both acids and bases.
- Wed Dec 04, 2019 12:59 pm
- Forum: Amphoteric Compounds
- Topic: H2O
- Replies: 8
- Views: 433
Re: H2O
Both
- Wed Dec 04, 2019 12:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Review Session
- Replies: 6
- Views: 380
Re: Final Review Session
yes, its under the name "Marshmallow"
- Wed Dec 04, 2019 12:57 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Drawing structures on the final
- Replies: 3
- Views: 183
Re: Drawing structures on the final
Definitely just be familiar with identifying/naming them
- Wed Dec 04, 2019 12:56 pm
- Forum: Student Social/Study Group
- Topic: readings
- Replies: 13
- Views: 873
Re: readings
there aren't any specific readings, but the outline Lavelle provides allows us to know which part of the book we should be looking at
- Wed Dec 04, 2019 12:54 pm
- Forum: Student Social/Study Group
- Topic: Preparing for the final
- Replies: 25
- Views: 1171
Re: Preparing for the final
review sessions and even having your own study groups helps a lot
- Wed Dec 04, 2019 12:53 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Chemistry Community Posts
- Replies: 10
- Views: 604
Re: Chemistry Community Posts
I believe the TA's Calculate the points
- Wed Dec 04, 2019 12:51 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Grades
- Replies: 15
- Views: 952
Re: Grades
only need 250 to get a C-
- Wed Dec 04, 2019 12:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final tips
- Replies: 19
- Views: 1000
Re: Final tips
Practice problems, review sessions, and having study groups
- Thu Nov 14, 2019 4:34 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: molecular shape vs. molecular geometry
- Replies: 4
- Views: 260
Re: molecular shape vs. molecular geometry
Geometry considers the lone pairs
- Thu Nov 14, 2019 4:33 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: Polar Vs Nonpolar
- Replies: 7
- Views: 402
Re: Polar Vs Nonpolar
im still not understanding the difference in determining if a molecule is polar or non polar
- Thu Nov 14, 2019 4:31 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VESPR Model of H2O
- Replies: 12
- Views: 791
Re: VESPR Model of H2O
H20 is bent
- Thu Nov 14, 2019 4:31 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Test 2
- Replies: 11
- Views: 502
Re: Test 2
Would just doing homework problems be the best option? A lot of people from last year said test 2 was harder than test 1 but im not understand how, if we only learned a couple of things after the midterm.
- Thu Nov 14, 2019 4:29 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Do we need to know bent structures?
- Replies: 5
- Views: 217
Re: Do we need to know bent structures?
my ta went over bent and sea saw so I'm pretty sure we should be familiarized with them.
- Thu Nov 14, 2019 4:28 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Trigonal pyramidal angles
- Replies: 4
- Views: 173
Re: Trigonal pyramidal angles
do we need to remember the angles?
- Thu Nov 14, 2019 4:28 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Trigonal pyramidal angles
- Replies: 4
- Views: 173
Re: Trigonal pyramidal angles
do we need to remember the angles?
- Thu Nov 14, 2019 4:27 pm
- Forum: Administrative Questions and Class Announcements
- Topic: some VSPER resources
- Replies: 1
- Views: 249
Re: some VSPER resources
This is really helpful, thank you so much
- Thu Nov 14, 2019 4:26 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: format of test
- Replies: 5
- Views: 245
Re: format of test
Same format as Test 1
- Thu Nov 14, 2019 4:25 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: How to study for test 2?
- Replies: 3
- Views: 185
Re: How to study for test 2?
My TA said its going to be all of Outline 4
- Wed Nov 13, 2019 5:39 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Week 9 homework
- Replies: 11
- Views: 698
Re: Week 9 homework
definitely think we should ask a TA
- Wed Nov 13, 2019 5:33 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge
- Replies: 7
- Views: 437
Re: Formal Charge
when is will we know to calculate a formal charge, will it be noticeable in the question or are there key words
- Wed Nov 13, 2019 5:31 pm
- Forum: SI Units, Unit Conversions
- Topic: Memorizing Conversions
- Replies: 25
- Views: 1290
Re: Memorizing Conversions
I think memorizing conversion will be more helpful it just makes it easier to do the problems
- Wed Nov 13, 2019 5:29 pm
- Forum: Empirical & Molecular Formulas
- Topic: empirical = molecular?
- Replies: 15
- Views: 903
Re: empirical = molecular?
the empirical formula is a simplified version of the molecular formula, so if the molecular formula cannot be simplified it can be both the molecular and empirical formula.
- Wed Nov 13, 2019 5:25 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Will we need to know these VSEPR shapes as well?
- Replies: 10
- Views: 594
Re: Will we need to know these VSEPR shapes as well?
all depends in Lavelle goes over it in class or if we have homework on them
- Wed Nov 13, 2019 5:24 pm
- Forum: Balancing Chemical Reactions
- Topic: Fractions
- Replies: 34
- Views: 1345
Re: Fractions
I would always change it to an integer because it gives an accurate answer
- Fri Oct 25, 2019 7:44 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Homework Help
- Replies: 5
- Views: 180
Re: Homework Help
There should be one electron in each orbital. Then pairing all in the same direction and s- orbitals should fill completely before moving on to p- orbitals
- Fri Oct 25, 2019 7:26 pm
- Forum: Resonance Structures
- Topic: defintion
- Replies: 7
- Views: 410
Re: defintion
i think of resonance structures as alternate Lewis structures but with making sure to emphasize lone pairs?
- Thu Oct 24, 2019 7:45 pm
- Forum: Balancing Chemical Reactions
- Topic: Balancing equations.
- Replies: 35
- Views: 2504
Re: Balancing equations.
For balancing equation I usually separate all the elements and start off with C O and H
- Thu Oct 24, 2019 2:01 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Energy of spdf orbitals
- Replies: 11
- Views: 371
Re: Energy of spdf orbitals
is there a rule that restricts a sub shell ? is it important to remember for this class?
- Thu Oct 24, 2019 1:51 pm
- Forum: DeBroglie Equation
- Topic: Help with the concept of De Broglie's
- Replies: 8
- Views: 834
Re: Help with the concept of De Broglie's
also what is the correct formula Lavelle uses for de broglies?
- Thu Oct 24, 2019 1:48 pm
- Forum: Trends in The Periodic Table
- Topic: Periodic Trend Exceptions
- Replies: 7
- Views: 230
Re: Periodic Trend Exceptions
can someone explain to me what trends are?
- Thu Oct 24, 2019 1:47 pm
- Forum: *Particle in a Box
- Topic: TEST 2
- Replies: 14
- Views: 1284
Re: TEST 2
what is the best studying method for chem?
- Thu Oct 24, 2019 1:45 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Energy of spdf orbitals
- Replies: 11
- Views: 371
Re: Energy of spdf orbitals
how do I know how many bonds or "dots" go on the ion in the lewis structures
- Thu Oct 24, 2019 1:44 pm
- Forum: Lewis Structures
- Topic: Ion lewis structure
- Replies: 9
- Views: 360
Re: Ion lewis structure
no it does not matter but the ion should have 8 "dots" unless ofc it doesn't need the full 8
- Thu Oct 24, 2019 1:42 pm
- Forum: DeBroglie Equation
- Topic: Help with the concept of De Broglie's
- Replies: 8
- Views: 834
Re: Help with the concept of De Broglie's
what is the formula for wavelength ?
- Thu Oct 24, 2019 1:41 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Rydberg equation [ENDORSED]
- Replies: 73
- Views: 8672
Re: Rydberg equation [ENDORSED]
is there different ways to write the Rydberg equation ? if so which is the most used one
- Thu Oct 24, 2019 1:37 pm
- Forum: *Particle in a Box
- Topic: TEST 2
- Replies: 14
- Views: 1284
Re: TEST 2
Does anyone know what the topics for test #2 will be or is it like a mini final
- Thu Oct 24, 2019 1:36 pm
- Forum: Ionic & Covalent Bonds
- Topic: Cation
- Replies: 23
- Views: 1618
Re: Cation
ions differ in the number of electrons and electrical charge but
cation: positive charge; loose electrons
anion: negative charge; gain electrons
cation: positive charge; loose electrons
anion: negative charge; gain electrons
- Thu Oct 24, 2019 1:33 pm
- Forum: Ionic & Covalent Bonds
- Topic: strength of bonds
- Replies: 14
- Views: 957
Re: strength of bonds
is it just the one and double bonds that can tell which is stronger