Chemistry P42 Discussion

[matchwhiz]

the question on transition metals,where it involve the drawing of D-orbital
and also question on chemical equilibria
(Kc) which we usually get on paper 2

 

[matchwhiz]

how did you calculate the order of the third one and u answer?

 

[matchwhiz]

i have written carry out the experiment in a fume cupboard.
is it a good answer?

 

[WhiteAngel]

I felt that i was doing an AS exam Nt an A2 :x
Does anyone know the answer for the organic part ( converting phenylamine to phenol ) because i think it was out the syllabus ??

 

[matchwhiz]

infact you should carry out diazotisation by using dilute HCL and NaNO2
below 10'c to form the diazonium salt.then warm the salt with dilute acid to phenol

 

[byhn222]

what did you guys draw for the d orbital? were we supposed to draw all 5?

 

[byhn222]

and the units for kc were mol dm-3 right?

 

[WhiteAngel]

For the D-orbitals i've drawn 3 in the degenerate form and 2 in a higher energy level . dnt know if its right or wrong !

 

[byhn222]

For the D-orbitals i've drawn 3 in the degenerate form and 2 in a higher energy level . dnt know if its right or wrong !

What did you draw for the question before that which asked us to show the axes? (the one before the question with the arrow showing an increase in energy level)

 

[notgeek]

we dint study d orbitals i

 

[WhiteAngel]

i've drawn 2 lopes BETWEEN the x-axis and the y-axis which are symmetrical in shape . but iam nt really sure of it too !

 

[heroism999]

what were the orders of the reaction?...i got 1 2 and zero respestively

 

[WhiteAngel]

what were the orders of the reaction?...i got 1 2 and zero respestively

Thats what i've got too !

 

[NehaKush]

no.. it was 1 1 0..

 

[ruvaldo]

im not sure now as i dont remember, but i wrote 1 1 1 !!!

 

[faez932]

it was 111

 

[paradoxice]

Order of reaction is 1,1 and 1 and ame sure of it as my teacher already corrected the whole paper

 

[byhn222]

yup i got 111 as well, and the rate i got at the end was 8. Messed up the Kc bit though, my expression and units were wrong :S i wrote kc= the reactants/products -_- and no units, even though i think the units were mol^-dm^3