Deena Doan 2F wrote:Are the rest of the discussions going to be on Zoom or are they just canceled?
I saw most TA's posting their notes, so I assume they are just cancelled.
Created by Dr. Laurence Lavelle
Julieta Serobyan4D wrote:I usually listen to music before the exam and try not to think about it. Also, if I know the material well, I am not that nervous. So, yeah practising does help.
asannajust_1J wrote:the total order of the reaction is the sum of the exponential coefficients. This can be determined based on graphs, a given rate law, or an integrated rate law.
Brandi 2C wrote:** It's not on Sunday anymore. **
He said it was cancelled in the email!
rabiasumar2E wrote:It's zero in an isothermal reversible reaction.
Ryan Yee 1J wrote:Yes, because of the equation: delta(G) = delta(G0) + RTln(Q) and since we are at equilibrium, Q=K as well as delta(G0) = -RTln(K). So if you plug things back in, you get delta(G) = -RTln(K) + RTln(K) which equals 0
Rebekah Alfred 1J wrote:When E cell is equal to zero, the cell cannot do work.
Philip wrote:Whenever we balance the half-reactions, how do we know whether we need to add an H+, OH-, and/or H2O on what side of the reduction or oxidation half-reaction?
Clara Cho 2K wrote:When solving an electrolysis problem, do you approach it the same way as a galvanic cell?
annikaying wrote:How would one write the cell diagram of reaction that is in an acidic solution? Is it any different?
Aiden Metzner 2C wrote:In lecture it seemed like professor said that k is always the slope of the graph of the rate. Is this true for zero order, first order, and second order reactions. Or is it only true for zero order?
805312064 wrote:What does it mean when Enaught is negative and why is it always positive for a galvanic cell?
Ghadir Seder 1G wrote:I know that oxidation is the loss of electrons and reduction is the gain of electrons, but how can I tell which one is which by looking at the chemical reaction? Do I use their oxidation states?
Kaylee Clarke 1G wrote:when do you include an inert gas in the cell diagram? and why is it only for one side (cathode or anode) or on both the cathode and anode?
Anthony Hatashita 4H wrote:What's the difference between these two?
Prasanna Padmanabham 4I wrote:When the Gibbs Free Energy is negative it means that the forward reaction is spontaneous while if it is positive, it means that the reverse reaction is spontaneous.
Ellen Amico 2L wrote:During a phase change, all the added heat energy is going towards breaking the bonds rather than increasing the temperature. Therefore, the temperature won't change.
Eileen Si 1G wrote:Is it possible to calculate K for an unbalanced equation? Or can you only calculate Q?
Hui Qiao Wu 1I wrote:He said that buffers help resist change. Our body is only equipped to function under a limited range of conditions. The buffers help our mechanisms stay in that optimal range.
ALegala_2I wrote:Does this mean that cooling an exothermic reaction will favor the products?
Abhi Vempati 2H wrote:Adding on to what @Hui Qiao Wu 1I mentioned, the lower the pka of an acid, the higher the pKb of its conjugate base. This is because of the equation pka + pKb = 14. Hope this helps!
805097738 wrote:This principle tries to minimize the effect of change by shifting the direction of the reaction in order to maintain equilibrium
Hannah Romeo 1J wrote:Solids and liquids are not included in the K expression as they do not change their concentrations in a reaction as they are pure substances. Essentially, their value is 1 resulting in the K expression only including aqueous solutions.
Malia Shitabata 3H wrote:Do we have to memorize the mass of an electron since it's a constant or will it be given on the reference sheet?
chari_maya 3B wrote:I don't understand part b... I know that N is more electronegative than Zn so Zn(OH) must be the bronsted base, but I don't understand why it is Zn(OH)2.
Andrea_3F wrote:9C.7 Which of the following isomers of diaminobenzene can form chelating complexes? Explain your reasoning.
How do you know which isomers can form chelating complexes?
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?
Isabel Day 1D wrote:You can identify an amphoteric compound by seeing if it would be able to both accept and donate hydrogen atoms.
005388369 wrote:Is memorizing the only way to know the ionic charges in the periodic table?
Omar Selim 3H wrote:sigma bonds are harder to break than pi bonds because the former are a result of end-to-end bonding while the latter consist of side-to-side bonds
Tiffany Dong_4e wrote:The central atom is typically determined by whichever atom has the lowest electronegativity. Aside from this, the atom which is alone or has the lowest quantity is usually in the center.
Anisha Chandra 4H wrote:Yes, the 4s orbital is lower energy than 3d, but once 4s is filled, it becomes higher energy than 3d, which is why electrons will be removed from 4s before 3d during ionization.
Leila_4E wrote:Will we have to know the actual values of electronegativity to determine the minute differences? I assume probably not..
DarrenKim_3G wrote:I think we would just have to know that electronegativity increases bottom to top in groups and left to right across periods
Alexa Hernandez 3k wrote:The more Bonds means a stronger pull so consequently you also get a smaller length because of the increased attraction.
Jamie Lee 1D wrote:Any electron configuration can be written in shorthand, so you can write ground-state or excited-state configurations using shorthand.
Qiu Ya Wu 4F wrote:In his lecture today, Lavelle emphasized that the plane the electron is found in is arbitrary and different textbooks associate different l values with different x,y, and z planes.