Search found 75 matches
- Fri Mar 13, 2020 8:42 am
- Forum: Administrative Questions and Class Announcements
- Topic: UA Final Review - Kate, Riya, Matthew
- Replies: 13
- Views: 2331
Re: UA Final Review - Kate, Riya, Matthew
what a wild way to end winter quarter! thank you all for working so diligently in order to support our continued academic success. Stay safe everyone.
- Tue Mar 10, 2020 11:00 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 408704
Re: Final Jitters
these are all great suggestions. but now i'm feeling very nervous about the undecided plans for our final exam now that classes are cancelled. Who thinks it will still go as scheduled for Sunday?
- Tue Mar 10, 2020 10:57 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Step Up Sessions
- Replies: 71
- Views: 7139
Re: Step Up Sessions
due to classes now being cancelled, will step-up/review sessions presume as scheduled or are those all cancelled as well?
- Mon Mar 02, 2020 10:15 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: test 2 topics
- Replies: 11
- Views: 791
Re: test 2 topics
thank you everyone!
- Sun Mar 01, 2020 8:10 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: test 2 topics
- Replies: 11
- Views: 791
test 2 topics
Can someone tell me an idea of what all will be on test 2??
- Mon Feb 24, 2020 10:09 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 6N.17
- Replies: 1
- Views: 261
6N.17
consider the cell Ag I Ag+ (aq. 5.0 mmol.L^-1)II Ag+ (aq 0.15 mol.L^-1)I Ag. can this cell do work? if so, what is the maximum work that it can perform (per mole of Ag)?
- Mon Feb 24, 2020 10:00 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: homework question 6M.3
- Replies: 2
- Views: 345
homework question 6M.3
predict the standard potential of each of the following galvanic cells:
(a) Pt I Cr^3+, Cr^2+ II Cu^2+ I Cu
(b) Ag I AgI I I^- II Cl^- I AgCl I Ag
(c) Hg I Hg2Cl2 I Cl- II Hg2 ^2+ I Hg
(d) C I Sn^4+, Sn^2+ II Pb^4+, Pb^2+ I Pt
(a) Pt I Cr^3+, Cr^2+ II Cu^2+ I Cu
(b) Ag I AgI I I^- II Cl^- I AgCl I Ag
(c) Hg I Hg2Cl2 I Cl- II Hg2 ^2+ I Hg
(d) C I Sn^4+, Sn^2+ II Pb^4+, Pb^2+ I Pt
- Mon Feb 24, 2020 9:51 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: homework question 6L.9
- Replies: 2
- Views: 355
homework question 6L.9
(a) write balanced half-reactions for the redox reactions of an acidified solution of potassium permanganate and iron (II) chloride. (b) write the balanced equation for the cell reaction and devise a galvanic cell to study the reaction.
- Mon Feb 24, 2020 9:39 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: homework question 6L.1
- Replies: 3
- Views: 384
homework question 6L.1
calculate the standard reaction gibbs free energy for the following cells:
(a) 2 Ce^4+ (aq) + 3I^- (aq) > 2 Ce^3+ (aq) + I3^- (aq), Ecell = +1.08V
(b) 6 Fe^3+ (aq) + 2 Cr^3+ (aq) + 7 H20 (l) > 6 Fe^2+ (aq) + Cr2o7^2- (aq) + 14 H+ (aq), Ecell = -1.29V
(a) 2 Ce^4+ (aq) + 3I^- (aq) > 2 Ce^3+ (aq) + I3^- (aq), Ecell = +1.08V
(b) 6 Fe^3+ (aq) + 2 Cr^3+ (aq) + 7 H20 (l) > 6 Fe^2+ (aq) + Cr2o7^2- (aq) + 14 H+ (aq), Ecell = -1.29V
- Wed Feb 12, 2020 4:18 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: pizza rolls question 2D
- Replies: 2
- Views: 350
pizza rolls question 2D
What is the initial reaction quotient when 3.2g of NH4HS is placed in a 2.0L vessel along
with 1.47 mol of NH3 and 2.85 mol H2S?
with 1.47 mol of NH3 and 2.85 mol H2S?
- Wed Feb 12, 2020 1:33 pm
- Forum: Student Social/Study Group
- Topic: midterm location
- Replies: 1
- Views: 196
midterm location
very random, but can someone please tell me where broad is??? I have never been there before!
- Wed Feb 12, 2020 11:17 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: midterm exam
- Replies: 1
- Views: 220
midterm exam
will all the sections of thermodynamics be on the midterm exam? Just need some clarification.
- Mon Jan 27, 2020 11:51 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: homework question 4A.3
- Replies: 6
- Views: 331
homework question 4A.3
Air in a bicycle pump is compressed by pushing in the handle. The inner diameter of the pump is 3.0 cm and the pump is depressed 20 cm with a pressure of 2.00 atm. (a) how much work is done in the compression? (b) is the work positive or negative with respect to the air in the pump? (c) what is the ...
- Mon Jan 27, 2020 11:40 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Order of homework for Thermochem unit
- Replies: 6
- Views: 356
Re: Order of homework for Thermochem unit
I would say it won't hurt to just get the extra practice, especially since everything will be a fair shot on the midterm/final
- Sun Jan 19, 2020 6:30 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: question 6B.7
- Replies: 4
- Views: 334
question 6B.7
The pH of several solutions was measured in research laboratories of a food company; convert each of the following pH values into the molar concentration of H3O+ ions: (a) 3.3 (the pH of sour orange juice); (b) 6.7 (the pH of the saliva sample); (c) 4.4 (the pH of beer); (d) 5.3 (the pH of a coffee ...
- Sun Jan 19, 2020 6:17 pm
- Forum: Ideal Gases
- Topic: homework #3
- Replies: 16
- Views: 945
Re: homework #3
just realized this as I was going through the class website! thanks!
- Sun Jan 19, 2020 6:10 pm
- Forum: Phase Changes & Related Calculations
- Topic: lecture on 1/17
- Replies: 3
- Views: 279
lecture on 1/17
would anyone be willing to give me a brief rundown of what lavelle covered in lecture on friday? I was out of town traveling for a competition and was not able to attend.
- Sun Jan 19, 2020 6:00 pm
- Forum: Ideal Gases
- Topic: homework #3
- Replies: 16
- Views: 945
homework #3
does anyone know what problem set we are supposed to choose homework problems from for week three?? is it outline 2 or are we still focusing on chemical equilibrium?
- Sun Jan 19, 2020 5:56 pm
- Forum: Ideal Gases
- Topic: Topics on Test 1
- Replies: 37
- Views: 1454
Re: Topics on Test 1
Not sure if this was covered in section, but are there specific equations/formulas we should for sure now for test 1??
(e.g. pH + pOH = kw)
(e.g. pH + pOH = kw)
- Sun Jan 19, 2020 5:54 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Homework problem 5.I.15
- Replies: 4
- Views: 348
Re: Homework problem 5.I.15
Honestly ice tables are just a quick to check your work, but from what I understand it is required that you use one to solve such questions on tests/exams
- Sun Jan 19, 2020 5:52 pm
- Forum: Administrative Questions and Class Announcements
- Topic: final exam
- Replies: 6
- Views: 386
Re: final exam
whoever finds out this information first, please feel free to post it here!
- Sat Dec 07, 2019 1:09 pm
- Forum: Student Social/Study Group
- Topic: another practice problem (not from midterm/ test 1 or 2)
- Replies: 1
- Views: 211
another practice problem (not from midterm/ test 1 or 2)
A drink contains 1.2 * 10^-10M of hydroxide ions, what is the pH of this drink?
- Sat Dec 07, 2019 1:07 pm
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 3
- Views: 281
Re: Study tips
what do you all think are the MOST important constants/equations we should memorize for the exam? (e.g. DeBroglie)
- Sat Dec 07, 2019 1:05 pm
- Forum: Student Social/Study Group
- Topic: not a question from the midterm or past tests, but a practice problem that i received from my PLF session
- Replies: 1
- Views: 225
not a question from the midterm or past tests, but a practice problem that i received from my PLF session
A cup of water is sitting at 25 degrees C. What is the molar concentration of hydronium ions in the cup? How about hydroxide ions?
- Sat Dec 07, 2019 12:59 pm
- Forum: Student Social/Study Group
- Topic: midterm question 4B
- Replies: 1
- Views: 223
midterm question 4B
If 100KJ of energy was absorbed by the gas sample, how many photons in total caused electronic excitations? How many moles of hydrogen were excited assuming one photon interacted with one unique hydrogen atom?? Even though I already looked over the solutions to the exam, I'm still quite confused abo...
- Sat Dec 07, 2019 12:55 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR of S02
- Replies: 4
- Views: 864
Re: VSEPR of S02
Correct, the shape for SO2 is bent
Remember that the VSEPR formula is: AXnEm
A= central atom
X= attached atom
E= lone pair
Remember that the VSEPR formula is: AXnEm
A= central atom
X= attached atom
E= lone pair
- Sat Dec 07, 2019 12:50 pm
- Forum: Sigma & Pi Bonds
- Topic: pi bonds
- Replies: 8
- Views: 704
Re: pi bonds
always remember the first bond must be a sigma bond which makes the rest pi bonds
Re: Metals
so does this mean that when you are naming metals, you just add -ate to the end? when is it -ite or -ide?
- Sat Dec 07, 2019 12:45 pm
- Forum: Student Social/Study Group
- Topic: Final Jitters
- Replies: 457
- Views: 408704
Re: Final Jitters
Do some yoga/meditation, take study breaks as needed (maybe try and get off campus for a little if you can)
The best thing to do before an exam is not cloud your mind. We retain information best when we study refreshed and with a good mindset.
The best thing to do before an exam is not cloud your mind. We retain information best when we study refreshed and with a good mindset.
- Sat Dec 07, 2019 12:43 pm
- Forum: Limiting Reactant Calculations
- Topic: Stoich
- Replies: 1
- Views: 290
Re: Stoich
In a way, some of the concepts can be considered stoichiometry because we do deal with the products and reactants of chemical reactions... but in a broader sense no, not really it is much more!!
- Sat Dec 07, 2019 12:41 pm
- Forum: Significant Figures
- Topic: Sig Figs on Midterm Q4 Part 2
- Replies: 3
- Views: 425
Re: Sig Figs on Midterm Q4 Part 2
Can someone please explain how they solved this question? because i got it wrong on the midterm :/
- Sat Dec 07, 2019 12:26 pm
- Forum: Student Social/Study Group
- Topic: Naming Compounds (general question)
- Replies: 2
- Views: 328
Re: Naming Compounds (general question)
if you look at questions 27-32 on the final exam review it asks you to either name the compound or give the molecular formula. so id assume that for the exam Lavelle wants us to know both
- Sat Dec 07, 2019 12:20 pm
- Forum: Naming
- Topic: Abbreviations (oxalato)
- Replies: 2
- Views: 278
Re: Abbreviations (oxalato)
pretty sure to get the answer completely correct you have to write it out fully (so your 2nd answer would be right)
- Sat Dec 07, 2019 12:18 pm
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 3
- Views: 281
Re: Study tips
actual study tip:
-do both the final review and the mini one that was posted!! rumor has it that Lavelle sometimes pulls questions from them and uses them as test questions
-do both the final review and the mini one that was posted!! rumor has it that Lavelle sometimes pulls questions from them and uses them as test questions
- Sat Dec 07, 2019 12:16 pm
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 3
- Views: 281
Re: Study tips
unless you are good at math in your head, I suggest you bring one with you the final (non graphing only of course)
- Sat Dec 07, 2019 12:15 pm
- Forum: Empirical & Molecular Formulas
- Topic: Midterm question 1
- Replies: 6
- Views: 556
Re: Midterm question 1
What's the step to step process on how to solve this problem? because I am lost
I get that that you have to first convert from grams to moles... but what do you do next?
I get that that you have to first convert from grams to moles... but what do you do next?
- Sat Dec 07, 2019 12:08 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar or Nonpolar
- Replies: 13
- Views: 1094
Re: Polar or Nonpolar
if the charge distribution of the shape is symmetrical it is nonpolar
if the charge distribution of the shape is asymmetrical it is polar
if the charge distribution of the shape is asymmetrical it is polar
- Sat Dec 07, 2019 12:01 pm
- Forum: General Science Questions
- Topic: Textbook
- Replies: 2
- Views: 230
Re: Textbook
YES. Pretty the same concepts we will be learning, just expanding upon. Hold on to those textbooks people! :)
- Sat Dec 07, 2019 11:54 am
- Forum: Properties of Electrons
- Topic: Mass of an electron
- Replies: 9
- Views: 781
Re: Mass of an electron
note: as for the midterm and final exam we are only given a periodic table, NOT the list of equations/constants. we just have to know them.
- Sat Dec 07, 2019 11:47 am
- Forum: Student Social/Study Group
- Topic: Study tips
- Replies: 7
- Views: 627
Re: Study tips
Honestly doing both practicing problems and studying old test questions would be best. Who knows, past questions could be reused on the final :/
- Sat Dec 07, 2019 11:43 am
- Forum: Lewis Acids & Bases
- Topic: Water
- Replies: 2
- Views: 220
Re: Water
I'm gonna assume you mean "conjugated"???
- Sat Dec 07, 2019 11:16 am
- Forum: DeBroglie Equation
- Topic: converting from nm to m
- Replies: 3
- Views: 404
converting from nm to m
Are we supposed to convert to nm when solving problems using the DeBroglie equation??? or can we just leave our answers in meters?
- Sat Dec 07, 2019 11:11 am
- Forum: Bronsted Acids & Bases
- Topic: HCl vs HClO
- Replies: 2
- Views: 274
Re: HCl vs HClO
by definition: "a more stable conjugate base means a stronger acid"
Also, the size and difference in electronegativity of HCl makes it a stronger acid
Also, the size and difference in electronegativity of HCl makes it a stronger acid
- Sat Dec 07, 2019 10:59 am
- Forum: Bronsted Acids & Bases
- Topic: Strong Vs. Weak Acids and Bases
- Replies: 3
- Views: 399
Re: Strong Vs. Weak Acids and Bases
I would suggest you just go ahead and memorize them. That may make things much easier if you already know them! What about coming up with a fun mnemonic to help memorize them?
- Thu Dec 05, 2019 9:20 pm
- Forum: Amphoteric Compounds
- Topic: 6A.17
- Replies: 2
- Views: 329
Re: 6A.17
amphoteric= means that the compound reacts as both as a base and as an acid
some examples-
1. lead oxide
2. zinc oxide
some examples-
1. lead oxide
2. zinc oxide
- Thu Dec 05, 2019 9:10 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3862190
Re: Post All Chemistry Jokes Here
Heres a fun way to memorize the three (OH)2 strong bases:
"drink your milk (Ca (OH)2) so you can be a strong (Sr (OH)2) baller (Ba (OH)2)"!!!
"drink your milk (Ca (OH)2) so you can be a strong (Sr (OH)2) baller (Ba (OH)2)"!!!
- Thu Dec 05, 2019 8:59 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: naming compounds
- Replies: 1
- Views: 135
Re: naming compounds
when naming a compound, the roman numeral serves to represent the charge and oxidation state of the metal ion!
- Thu Dec 05, 2019 8:57 pm
- Forum: Bronsted Acids & Bases
- Topic: HF is a weak acid?
- Replies: 8
- Views: 1195
Re: HF is a weak acid?
if anyone has some tips/tricks on how to easily identify strong/weak acids and bases, please share!!!
- Sun Nov 24, 2019 4:33 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: square planar vs tetrahedral
- Replies: 5
- Views: 427
Re: square planar vs tetrahedral
in a tetrahedral the central atom is surrounded by 4 substituent atoms vs in a square planar the central atom is surrounded by any amount of substituent atoms
- Sun Nov 24, 2019 4:28 pm
- Forum: Student Social/Study Group
- Topic: Test 2 and Final
- Replies: 18
- Views: 954
Re: Test 2 and Final
Well since most discussion sections are cancelled this week due the thanksgiving break, we will more than likely get test 2 back either in class monday or wednesday (11/25 or 27) or not until week 10 in section. But i'm not sure if the TA's will just post grades in Myucla before handing them back......
- Sun Nov 24, 2019 4:23 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Ligands
- Replies: 2
- Views: 234
Re: Ligands
ligands have at least one donor atom with an electron pair used to form covalent bonds with the central atom
3 types:
1. monondentate (e.g. chloride ion)
2. bidentate (e.g. oxalate ion)
3. polydentate (e.g. EDTA)
3 types:
1. monondentate (e.g. chloride ion)
2. bidentate (e.g. oxalate ion)
3. polydentate (e.g. EDTA)
- Thu Nov 14, 2019 8:35 pm
- Forum: General Science Questions
- Topic: Midterm
- Replies: 7
- Views: 551
Re: Midterm
Talk to your TA for sure, either in section or go to their office hours. Also go over the solutions to the exam on the class website so you can see the point distribution for each question. I did that and actually ended getting 7 points added to my total grade!
- Thu Nov 14, 2019 8:30 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Test 2
- Replies: 11
- Views: 569
Re: Test 2
Suggestions to study:
-VSEPR models
-dipoles
-molecular shape names... MEMORIZE (e.g. trigonal planar)
we honestly have not learned much since after the midterm
-VSEPR models
-dipoles
-molecular shape names... MEMORIZE (e.g. trigonal planar)
we honestly have not learned much since after the midterm
- Thu Nov 14, 2019 8:28 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Molecular Shape Name
- Replies: 17
- Views: 906
Re: Molecular Shape Name
We can all agree that based upon what we've recently learned in lecture, VSEPR and molecular shape naming is basically all that will be on test 2!
- Thu Nov 14, 2019 8:23 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Drawing Molecular Structures
- Replies: 8
- Views: 555
Re: Drawing Molecular Structures
anyone have an example of this? I'm still practicing drawing the structures
- Tue Nov 12, 2019 7:45 pm
- Forum: Amphoteric Compounds
- Topic: Amphiprotic
- Replies: 11
- Views: 625
Re: Amphiprotic
Amphiprotic= a substance that can both accept and donate a proton (has characteristics of both an acid and a base)
amphiprotic vs. amphoteric:
-a substance is amphoteric when its reaction acts as an acid and as a base
-amphiprotic only applies to protic compounds
amphiprotic vs. amphoteric:
-a substance is amphoteric when its reaction acts as an acid and as a base
-amphiprotic only applies to protic compounds
- Tue Nov 12, 2019 7:38 pm
- Forum: Bond Lengths & Energies
- Topic: Veteran's Day Jokes
- Replies: 1
- Views: 155
Re: Veteran's Day Jokes
I tell bad chemistry jokes, because all the good ones "Argon"...
- Tue Nov 12, 2019 7:34 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR model
- Replies: 4
- Views: 384
Re: VSEPR model
VSEPR= valence shell electron pair repulsion theory
*p.s. not quite sure on how to determine formula yet
*p.s. not quite sure on how to determine formula yet
- Sun Oct 27, 2019 8:39 pm
- Forum: Resonance Structures
- Topic: Resonance
- Replies: 5
- Views: 193
Re: Resonance
adding to that, resonance means that some lewis structures have multiple bonds in different equivalent locations
(e.g. from lecture NO3^-)
(e.g. from lecture NO3^-)
- Sun Oct 27, 2019 8:34 pm
- Forum: Ideal Gases
- Topic: Reading the textbook
- Replies: 262
- Views: 154902
Re: Reading the textbook
going to be honest, I only use the textbook to get homework/practice problems. to me, too much reading makes it confusing, so I mainly utilize my lecture notes and do lots of practice.
- Sun Oct 27, 2019 8:32 pm
- Forum: Lewis Structures
- Topic: Drawing Lewis Structures
- Replies: 5
- Views: 197
Re: Drawing Lewis Structures
does anyone have any tips for making sure that you have enough valence electrons drawn when accounting for double bonds?
- Sun Oct 27, 2019 8:29 pm
- Forum: Resonance Structures
- Topic: delocalized electrons
- Replies: 3
- Views: 176
Re: delocalized electrons
by definition: a delocalized electron is an electron that is not associated with a single atom/covalent bond
however, I'm also not quite sure why the lewis structure doesn't capture this effect???
however, I'm also not quite sure why the lewis structure doesn't capture this effect???
- Sun Oct 20, 2019 10:07 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3862190
Re: Post All Chemistry Jokes Here
QA: Why can't you trust an atom?
A: They make up everything!
A: They make up everything!
- Sun Oct 20, 2019 10:06 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3862190
Re: Post All Chemistry Jokes Here
Are you made of copper and tellurium?
because you're Cu Te
lol
because you're Cu Te
lol
- Sun Oct 20, 2019 10:04 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Quick Question about orbitals
- Replies: 1
- Views: 188
Re: Quick Question about orbitals
Good question!!! Chemistry is strange... this calls for an answer from Dr. Lavelle
- Sun Oct 20, 2019 10:02 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: How to use it
- Replies: 5
- Views: 257
Re: How to use it
what equation?
- Sun Oct 20, 2019 10:00 pm
- Forum: Photoelectric Effect
- Topic: Video Module Assessment
- Replies: 1
- Views: 186
Re: Video Module Assessment
step 1= convert nm to m 1nm= 10^9m so... 194nm = 1.94 x 10^-7m step 2= use speed of light formula: c=(wavelength)(frequency) 3.10 x 10^8= (1.94 x 10^-7m)(frequency) frequency= 1.546 x 10^15 Now you can plug the frequency into the formula for kinetic energy: E=hv E= (6.626 x 10^-34)(1.546 x 10^15)= 1...
- Sun Oct 20, 2019 9:51 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Quantum Number
- Replies: 4
- Views: 217
Re: Quantum Number
honestly, just know the rules on how to find them!
- Wed Oct 09, 2019 10:54 pm
- Forum: Einstein Equation
- Topic: Numbers to memorize [ENDORSED]
- Replies: 37
- Views: 4231
Re: Numbers to memorize [ENDORSED]
All I would say, is that for test 1 don't worry about having constants or unit conversions memorized (as they will be given), but for future reference (e.g. the midterm and final) to know and understand them.
- Wed Oct 09, 2019 10:51 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Test 1 [ENDORSED]
- Replies: 107
- Views: 26587
Re: Test 1 [ENDORSED]
PSA: don't forget a calculator for the test!!
- Sun Oct 06, 2019 9:12 pm
- Forum: Significant Figures
- Topic: Reviewing Sig Figs
- Replies: 3
- Views: 167
Re: Reviewing Sig Figs
Khan Academy definitely has some helpful videos that can help with practicing sig figs!
- Sun Oct 06, 2019 9:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Posts
- Replies: 6
- Views: 303
Re: Posts
Random question, but does anyone have any advice/suggestions on things to post on here in for future weeks???
(Besides just posting homework questions)
(Besides just posting homework questions)
- Sun Oct 06, 2019 9:00 pm
- Forum: SI Units, Unit Conversions
- Topic: Homework Vs. Test
- Replies: 3
- Views: 179
Re: Homework Vs. Test
I know for a fact that all constants and equations are given. But as for the molecular vs empirical formula section, just in case I would practice finding them when it is not given!
- Wed Oct 02, 2019 4:27 pm
- Forum: Limiting Reactant Calculations
- Topic: M.9
- Replies: 5
- Views: 359
Re: M.9
Yes, to find the net ionic equation, start by balancing the equation first... -i don't believe we've gone over this in lecture yet, but the second step is to break all of the strong electrolytes into the ions they form -last step= any that are aqueous on both sides of the chemical equation get cance...
- Wed Oct 02, 2019 4:19 pm
- Forum: Empirical & Molecular Formulas
- Topic: 5 Homework Problems Due
- Replies: 21
- Views: 943
Re: 5 Homework Problems Due
I agree with what most people have posted... i think its best that you try and practice problems for a variety of sections just as preparation for exams. In Dr. Lavelle's syllabus he even notes that 1 out of 8 homework questions are used in exams, so there's a possibility that you know some answers ...