chrisleung-2J wrote:I believe that the take-home final is supposed to be taken during the same time as the in-class one, which is this Sunday from 11:30AM - 2:30PM.
Thank you!
chrisleung-2J wrote:I believe that the take-home final is supposed to be taken during the same time as the in-class one, which is this Sunday from 11:30AM - 2:30PM.
Abhi Vempati 2H wrote:It seems the same as 14A, and I think the only thing that might change is how he adjusts the grades based on the class's performance this quarter.
Fatemah Yacoub 1F wrote:Yes, I believe the test covers the second page of the thermodynamics outline and all of the electrochemistry outline
Christine Honda 2I wrote:As Dr. Lavelle mentioned at the end of the lecture today, the test will cover the second page of the Thermodynamics outline and all of the Electrochemistry Outline. But the test will NOT include Chemical Kinetics.
Mandeep Garcha 2H wrote:Anything in the second page in outline 4 and all of outline 5 can be on the test.
KarineKim2L wrote:Test 2 covers the part of thermodynamics that wasn't on the midterm and all of the Electrochemistry outline.
sbeall_1C wrote:Test 9 is covering the last page of the thermodynamics syllabus and the electrochemistry syllabus.
This refers to HW problems:
5G: 13, 15, 17, 19, 21
5J: 11,13, 15
5.55, 5.61
And all the HW probs outlined on the electrochemistry syllabus (Focus 6K-6O.1)
Megan Kirschner wrote:I think it's likely it will focus on the thermodynamics stuff that wasn't on the midterm, beginning with the content taught during week 6. But obviously there can be overlap since it's all connected.
Myka G 1l wrote:Both tests are worth 50 points.
Christineg1G wrote:Official study guides haven't been made for this class, but I would recommend making your own with the notes from class as well as going to multiple peer learning sessions since they give worksheets/additional notes.
Megan Cao 1I wrote:S is just entropy itself
delta S is the change in entropy
delta S total is the total change in entropy within a universe ( Ssys + Ssurr)
delta S surroundings is the change in entropy within the surroundings
Hope this helps in some way!
Mukil_Pari_2I wrote:Residual entropy is the difference in entropy between a non-equilibrium state and crystal state of a substance close to absolute zero.
Jarrett Peyrefitte 2K wrote:How is delta S related to delta H for a change at a constant temperature and pressure? What is their relationship?
Eunice Nguyen 4I wrote:There is no transfer of heat, so q will equal 0.
Mariah wrote:When is test 2?
Meredithe DeGuzman4G wrote:It's because the integral calculates the area under the curve. In the pressure v volume graph, calculating the area under the curve will give you the amount of work done to the surroundings.
Bilal Pandit 1J wrote:w is given in joules.
Hannah Romeo 1J wrote:How do we know when to use the different work equations? I believe that both occur at constant pressure; however, when do we know which equation to use?
connie 2C wrote:in the second equation, would we ever have to use the integral or would we just be using the equation -nRT(V2/V1)?
VLi_2B wrote:Kelvin = Celsius + 273.15
Celsius = Kelvin - 273.15
Because the difference between Celsius and Kelvin is addition/subtration; the difference/sum will always be the same.
105335337 wrote:You just need to know that if pressure is constant, the integral results in P (delta)T & if pressure is not it results in nrtln(v2/v1).
AKhanna_3H wrote:Internal energy is represented by delta U. Q represents the heat entering or exiting the system.
Jeremy_Guiman2E wrote:Homework 3 should probably be from the Acids and Bases Equilibria section given that we finished covering it last week (and we already completed the Chemical Equilibrium section as well).
Shail Avasthi 3C wrote:The value of R you use depends on the units given to you in the problem and the units which your answer needs to be in. The units of R will cancel out with all of the given terms to give you your final answer's units.
Leslie Almaraz 4G wrote:How do you know which variation of the R constant to use?
Andrew Pfeiffer 2E wrote:Roughly 3.34 x 10-9 m
Chloe Alviz 1E wrote:We don't really need to know this concept; as long as you know what values you plug into for the formula you should be fine.
BNgo_2L wrote:Liquids and Solids don't have/have minimal changes in pressures nor concentrations, so they are typically not involved in computing the equilibrium constant.
Wendy Perez 1E wrote:Strong acids do have a Ka value. They have large Ka values because the higher the Ka, the more the acid dissociates. They have low pKa values.
Jamie Hwang 2F wrote:RichBollini4G wrote:Does anyone know if the homework is graded for completion or for correctness?
It's really up to your TA. My TA grades for completeness because we have the right answers in the Solutions Manual but you should ask your TA if you're not sure.
Patricia Cardenas wrote:RichBollini4G wrote:Does anyone know if the homework is graded for completion or for correctness?
It depends on your TA, last quarter my homework was graded on correctness.
SarahCoufal_1k wrote:everything on sapling learning is voluntary and just an extra resource I believe
Natalie Nartz 4F wrote:Homework problems from the textbook are due in during your discussion time. Posts on chemistry community are due 11:59 pm Sunday night.
Alvaro Chumpitaz 4D wrote:Are there any exceptions to the electronegativity periodic trend?
Kavya Immadi 3D wrote:Ionization energy is the energy needed to remove electrons from atoms. Electronegativity is how much an atom attracts electrons.
Anokhi Patel 4G wrote:We can use atomic radii to determine the strength of the attraction of electrons to the atom compared how well the nucleus holds the electrons together.
kendal mccarthy wrote:I think as long as you know the general trends of electronegativity that should suffice. If there are weird patterns that might not seem obvious my TA said the test would include numbers of electronegativity to help.
AngieGarcia_4F wrote:I think you could relate it to chelating ligands because a ligand cant create a ring around a metal if it cant rotate meaning it would have to have the right type of bond (single vs double) in the right places.
Chloe Alviz 3F wrote:In the textbook, it says that all single covalent bonds are sigma bonds. If this is the case, how would we define the bond for an ionic compound such as NaCl?
905174774 wrote:FOr pi bonds, a triple bond is considered one sigma bond and two pi bonds right?
Jessica Tejero 3L wrote:Write the names of the ligands in the following order: neutral, negative, positive. If there are multiple ligands of the same charge type, they are named in alphabetical order.
Haley Dveirin 4B wrote:I would just to be safe. I think you should know all the VSEPR shapes listed on the worksheet handed out in your discussion section which includes those.
Sara Richmond 1D wrote:Sigma bonds are single bonds. Pie bonds are in double and triple bonded atoms. In a double/ triple bonded atom, one bond is always a sigma bond and the others are pie bonds.
lauraxie3d wrote:When do I use wedge and dash to draw models? For example CH4 in class we drew it using wedge and dash, but SF6 we didn't?
NicoJones_1B wrote:If our molecule does not have any lone pairs when writing the notation do we write E0 or just not write E at all?
Alexis 3F wrote:This test will only range from what we've learned since the midterm up until the first 5 minutes of class on monday
Sana_Mian_3G wrote:If there is a triple bond how many pi and sigma bonds are there?
VLi_1L wrote:Why are single bonds longer than double bonds?
Kennedi3K wrote:Is this the same for ionization energy?
Kendra Barreras 3E wrote:Both electronegativity and ionization energy increases from left to right. The same is true for electron affinity. the opposite however is true for the atomic radius.
Jaklin Astvatsatryan wrote:guys i really recommend watching videos, esp my visual learners. start problems and try doing them without notes and then watch videos if you're really stuck.
Gilberto Millan 1F wrote:RichBollini3C wrote:Does anyone know how to see how many posts you have posted?
Yes, you go to the top right and click on your username->click on control panel->click on overview->go to the bottom of the page and it should say something like "My Posts."
Lizette Noriega 1H wrote:RichBollini3C wrote:Diana Chavez-Carrillo 3J wrote:Are the TA's grading our homework based on completion or correctness?
I believe they are grading based on correctness.
Do you know if all the TAs grade based on correctness or does it vary from TA to TA?
ktran Disc 1I wrote:Is it recommended to just show all of our work when possible? Also, do we need to include the specifications for the element/compound in our calculations?
Diana Chavez-Carrillo 3J wrote:Are the TA's grading our homework based on completion or correctness?
Angela Prince 3B wrote:Does anyone know if we will be on the quantum topic for more than just one week? I just want to know if the homework set for quantum will be used for both weeks 3 and 4. Thanks!
Maya Beal Dis 1E wrote:Since the Quantum Unit is more than a week long does it mean we just hand in five homework problems from that section every week until we are done with the unit?