Chemistry 42....how did it go?..expected GT

[hassam]

Hesssam its not because they said position so cant be cis trans
I meant that make ester with this :|
Can not be cis trans because they have said position of the functional group is different and here it is locked can not perform cis trans check google .

welll they only said contains same functional gropus as C!!!

 

[Sannikutti]

welll they only said contains same functional gropus as C!!!

They said at different position as well in the question I remember it it said draw the structure of the isomer of C which have same functions but
in different position

 

[Sannikutti]

welll they only said contains same functional gropus as C!!!

I told in chat also yesterday when u asked but no 1 lisstened its isomer is Juglon http://en.wikipedia.org/wiki/Juglone

 

[mury456]

please help me out .... Im excepting 40 ....
what grade do you think dat will i will land in this component =/
???

 

[Sannikutti]

please help me out .... Im excepting 40 ....
what grade do you think dat will i will land in this component =/
???

A inshaALLAH

 

[histephenson007]

I told in chat also yesterday when u asked but no 1 lisstened its isomer is Juglon http://en.wikipedia.org/wiki/Juglone

Juglone doesn't have an ester, but compound D does.

 

[histephenson007]

The answers for the first question in Section B were :
Van der Waals force
Disulphide bonds
Hydrogen bonding
Hydrogen bonding
Right?!

And, what was the equation for Potassium Chromate oxidising Compound A to lawsone?

 

[leadingguy]

The answers for the first question in Section B were :
Van der Waals force
Disulphide bonds
Hydrogen bonding
Hydrogen bonding
Right?!

And, what was the equation for Potassium Chromate oxidising Compound A to lawsone?

nt really sure ... but ur frst two are the same as mine bt I wrote one Ionic as well among the last 2...

 

[histephenson007]

nt really sure ... but ur frst two are the same as mine bt I wrote one Ionic as well among the last 2...

how about the oxidation with Potassium Chromate?
What was the Ecell and the equation. And the concentration of A

 

[histephenson007]

One more, what are the two factors that effect the eneergy required to affect the proton spin in NMR?!

 

[leadingguy]

how about the oxidation with Potassium Chromate?
What was the Ecell and the equation. And the concentration of A

dont exactly remember the eq. conc. was I guess o.oo188 or o.o15 nt sure at it tooo but realy sure that it started wid o.o...

 

[histephenson007]

dont exactly remember the eq. conc. was I guess o.oo188 or o.o15 nt sure at it tooo but realy sure that it started wid o.o...

lol, I was working on that question for the last 10 minutes. And I gave up at the last minute and just did something and ended up with something ^10-4

 

[leadingguy]

One more, what are the two factors that effect the eneergy required to affect the proton spin in NMR?!

not sure abt the two factrs as wel
just put a guess there.... that rotaing the tube or the material under observation at a frequency this wil I create an effect on the energy.... red this in application support booklet
stil don't believe me .... nt sure

 

[histephenson007]

not sure abt the two factrs as wel
just put a guess there.... that rotaing the tube or the material under observation at a frequency this wil I create an effect on the energy.... red this in application support booklet
stil don't believe me .... nt sure

ya I just put guesses for that question too, something like increasing magnetic field...blah blah

 

[histephenson007]

But rest of the paper went well
Hoping for an A, but A* would be much better

Anyone who is sure about these answers plz reply

 

[leadingguy]

and the frst qstn of section B regarding NMr in which the two peaks at 2.0 and at 1.6 i guess.... what were they???

 

[histephenson007]

and the frst qstn of section B regarding NMr in which the two peaks at 2.0 and at 1.6 i guess.... what were they???

one was alcohol, the other was CH3

 

[leadingguy]

hahaha gr8 I think i did the same and on the very net page the isomers were????/ secondary and tertiary alcohols!!!!!!!!!
I gues?????

 

[histephenson007]

One more,
Suggest why it is not possible to get the enthalpy change of solution for O2- ?!

 

[leadingguy]

One more,
Suggest why it is not possible to get the enthalpy change of solution for O2- ?!

it is already an Ion i gues