Search found 21 matches

by KelseyKobayashi_2M
Sat Mar 18, 2017 2:29 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Winter 2015 Final #9A [ENDORSED]
Replies: 4
Views: 848

Re: Winter 2015 Final #9A [ENDORSED]

Also for this question on the other molecule, is the cycloheptane a substituent because of the alcohol?
by KelseyKobayashi_2M
Mon Mar 13, 2017 10:27 am
Forum: *Cyclopropanes and Cyclobutanes
Topic: Conformations [ENDORSED]
Replies: 4
Views: 806

Re: Conformations [ENDORSED]

Will we need to know/draw the most stable forms of molecules?
by KelseyKobayashi_2M
Mon Mar 06, 2017 10:12 am
Forum: *Alkanes
Topic: Isopropyl vs Propyl [ENDORSED]
Replies: 4
Views: 2415

Re: Isopropyl vs Propyl [ENDORSED]

Should we always just use the IUPAC naming instead of the common names?
by KelseyKobayashi_2M
Thu Mar 02, 2017 11:59 pm
Forum: *Nucleophiles
Topic: Ambident
Replies: 3
Views: 361

Re: Ambident

Are we expected to know if it is ambident simply by looking at it?
by KelseyKobayashi_2M
Thu Feb 23, 2017 5:39 pm
Forum: *Electrophiles
Topic: CO2
Replies: 5
Views: 1023

Re: CO2

Are we always supposed to just look at the charge of the central atom to determine whether is it an electrophile or nucleophile?
by KelseyKobayashi_2M
Wed Feb 15, 2017 3:44 pm
Forum: Balancing Redox Reactions
Topic: Balancing equations
Replies: 10
Views: 865

Re: Balancing equations

Is there any way to know if the E value will end up being positive or negative before doing the calculations?
by KelseyKobayashi_2M
Tue Feb 14, 2017 7:24 pm
Forum: Balancing Redox Reactions
Topic: Balancing equations
Replies: 10
Views: 865

Re: Balancing equations

Since Eo is an intensive property, it is fixed. I believe the only time it changes sign is when you are writing out the half reactions and need to flip signs so that one is reduced and the other is oxidized.
by KelseyKobayashi_2M
Fri Feb 03, 2017 2:32 pm
Forum: Balancing Redox Reactions
Topic: Cell diagram
Replies: 3
Views: 434

Re: Cell diagram

For cell diagrams, will we just need to know how to translate the short-hand symbols into an actual drawing for tests or is it just generally good for us to know what the short hand is?
by KelseyKobayashi_2M
Sat Jan 28, 2017 1:18 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Reversibly & Isothermally
Replies: 3
Views: 456

Re: Reversibly & Isothermally

What is the difference between reversible and irreversible reactions (conceptually, not mathematically)?
by KelseyKobayashi_2M
Sat Jan 21, 2017 8:06 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Gas Expansion Example [ENDORSED]
Replies: 1
Views: 244

Re: Gas Expansion Example [ENDORSED]

I think he was mentioning that it is more efficient for gas expansion to happen in many small increments, than less larger ones
by KelseyKobayashi_2M
Sat Jan 14, 2017 1:01 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond Enthalpies
Replies: 7
Views: 433

Re: Bond Enthalpies

For these types of problems, will we always be given the reaction?
by KelseyKobayashi_2M
Thu Dec 01, 2016 10:52 pm
Forum: Bronsted Acids & Bases
Topic: Weak Acid
Replies: 4
Views: 560

Re: Weak Acid

This was one of the homework problems (12.51) where HF was a weaker acid than HCl, but in another part of that problem, it stated that HClO2 is a stronger acid than HBrO2 because Cl is more electronegative. So, why is HF a weaker acid if F is more electronegative than Cl?
by KelseyKobayashi_2M
Fri Nov 25, 2016 11:56 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Homework Problem Chapter 11 #25
Replies: 4
Views: 426

Re: Homework Problem Chapter 11 #25

The table gives you the reaction and the K value needed to find the equilibrium concentration of H2.
by KelseyKobayashi_2M
Sat Nov 19, 2016 7:42 pm
Forum: Naming
Topic: Polydentates
Replies: 4
Views: 501

Re: Polydentates

Will we have to just memorize the number of lesser known ligands of the list in the course reader (ex. ethylenediamine, oxalato, etc.)?
by KelseyKobayashi_2M
Thu Nov 10, 2016 11:09 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Anti-Bonding Orbitals Definition
Replies: 1
Views: 242

Re: Anti-Bonding Orbitals Definition

Hi all! I was wondering if someone could give me a definition of anti-bonding orbitals? Does this just refer to the energy levels in the molecular orbital theory? Thanks in advance! I think we'll mainly need to know that it is a type of molecular orbital that, when occupied, ends up weakening the b...
by KelseyKobayashi_2M
Tue Nov 01, 2016 7:51 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Midterm
Replies: 6
Views: 566

Re: Midterm

Abigail Foster 1K wrote:Do we need to know bond angles for the midterm?

Yeah we should probably be familiar with the bond angles of different shapes because I think some of the past midterms asked you to find at least one bond angle based on a lewis structure.
by KelseyKobayashi_2M
Fri Oct 28, 2016 2:37 pm
Forum: Hybridization
Topic: Hybridization [ENDORSED]
Replies: 4
Views: 567

Re: Hybridization [ENDORSED]

HannahLewis wrote:Since it has a sp3 density, does that also mean that it has a tetrahedral structure as well?

I believe if all 4 positions of electron density are occupied by electrons, then it's tetrahedral, but if 3 of the 4 positions are occupied, then the shape is trigonal pyramidal.
by KelseyKobayashi_2M
Tue Oct 18, 2016 3:30 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 113
Views: 64177

Re: Rusty on High School Chem [ENDORSED]

William_Yi_3B wrote:Can someone tell me where to find the Oxygen on the periodic table


Oxygen (atomic number 8) is in the top row of the p-block, third from the right.
by KelseyKobayashi_2M
Thu Oct 13, 2016 9:51 am
Forum: General Science Questions
Topic: Formula Sheet
Replies: 3
Views: 757

Re: Formula Sheet

Will the formula sheet be the same as the one on the back of the periodic table we bought?
by KelseyKobayashi_2M
Fri Oct 07, 2016 10:17 pm
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 91
Views: 9067

Re: All students read this sig fig post [ENDORSED]

michaeljwilson3 wrote:Do constants play a role in the significant figures an answer should have?


From what I've seen, I don't think constants affect amount of sig figs in the final answer.
by KelseyKobayashi_2M
Fri Sep 30, 2016 1:57 pm
Forum: *Black Body Radiation
Topic: Black body [ENDORSED]
Replies: 3
Views: 597

Re: Black body [ENDORSED]

What is the significance of black bodies and will we have to understand all about how they work for the midterm/final?

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