CHEMISTRY COMMUNITY

Jamie_Cole_2N

So, is trans- more stable in this case?

Jamie_Cole_2N

For a chair conformation of cyclohexane, with IUPAC name either cis- or trans- 1,4-dimethylcyclohexane, which confirmation is the most stable? And adding the methyls to two axials H's, two equatorial H's, or one axial and one equatorial would be more stable?

Jamie_Cole_2N

Why would NO have a higher residual entropy than BF3?

Jamie_Cole_2N

A tip to remember that Z stands for same side (cis) is "Zee Groups are on Zee Zame Zide."
At least as far as I know, the reason trans is E and cis is Z wasn't explicitly stated in lecture, but this trick will be helpful in remembering Z stands for cis!

Jamie_Cole_2N

What properties about being nucleophiles make one stronger than the other, I understand how an ion with a larger source of electrons available (and higher polarizability) but how could we explain other examples like why H2O is not stronger than OH- when the book mentions there is only "some cor...

Jamie_Cole_2N

Yeah it does, thank you. I couldn't remember the rule. I was reviewing my 14A material (this is textbook question 4.38d)

Jamie_Cole_2N

For CH3NNN there are 3 resonance structures (I believe)
So, would we use the resonance structure which yields the largest hybridization as the answer, or how would we know which hybridization is correct without being given information about which resonance form the molecule is in?

Jamie_Cole_2N

The question asks for the specific heat capacity of Squirtle's shell in KJ/ ((degrees C)* g) and for specific heat capacity the equation q = (m*C*(deltaT)) gives an answer in KJ/ ((degrees C)* g): My question is, why we don't we use 2500 degrees C for finding the specific heat capacity in this probl...

Jamie_Cole_2N

For an acidic solution, you balance using H2O and H+ But with basic solution, you balance with H2O and OH- Basic solutions definitely require you to be more careful. You can still use H+ when solving, but keep in mind you must multiply by the same amount of OH- on both sides to cancel the H+'s For e...

Jamie_Cole_2N

Potassium permanganate reacts with iron(II) chloride according to the following oxidation-reduction half-reactions: MnO4-(aq) + 8H+(aq) + 5e- ---> Mn2+(aq) + 4H2O (cathode reduction half-reaction) You first add the amount of H2O needed to balance the O's in the MnO4- portion, then add H+ that equal ...

Jamie_Cole_2N

Reversible reactions can be reversed by infinitely small changes in a variable. For changes in pressure, Pex must ALWAYS be infinitesimally different from the pressure of the system. For a change in temperature, the temperature of the system must change by a series of infinitely small amounts of hea...

Jamie_Cole_2N

On page 17 of the course reader, there is a standard enthalpy of formation example about using graphite and gaseous hydrogen and oxygen to form ethanol,
Why is the enthalpy of reaction divided by 2?

CHEMISTRY COMMUNITY

Search found 12 matches

Re: Most stable confirmation? [ENDORSED]

Most stable confirmation? [ENDORSED]

Higher Residual Entropy

Re: Cis & Trans

Nucleophile strength

Re: Homework Problem 4.38d

Homework Problem 4.38d

Winter 2014 Q3B

Re: Balancing on acidic vs basic solutions

Re: 14.17

Re: Reversible Reactions

Standard Enthalpy of Formation Course Reader example