[Jasmine_777]

how much detail do we need to know about the Haber process and the N2 cycle ??

[kishenp]

(Original post by Hazel247)
If you count the longest chain of carbons first then you know what the end part will be, and you can then add on the functional groups in alphabetical order. And remember you always number the functional groups as low as you possibly can (so think about which end you start counting from!)

Hope this helps

Thank you very much
would you be able to give me an example please

[Princess Kawaii]

Explain why synthons are not often used to make the required compound?

[master_blaster66]

(Original post by Princess Kawaii)
Explain why synthons are not often used to make the required compound?

thats because they are very unstable and they cannot be obtained

[master_blaster66]

(Original post by Jasmine_777)
how much detail do we need to know about the Haber process and the N2 cycle ??

erm you should know the equation off by hear which is quiet easy to remember and just remember the conditions ..you should be alright with haber process if you know that i think

[Mathlete 4 the win]

(Original post by Princess Kawaii)
Explain why synthons are not often used to make the required compound?

Because the majority of the time the synthons don't exist, they're not real compounds.

[Jasmine_777]

(Original post by Princess Kawaii)
Explain why synthons are not often used to make the required compound?

they're also just hypothetical

[Jasmine_777]

(Original post by master_blaster66)
erm you should know the equation off by hear which is quiet easy to remember and just remember the conditions ..you should be alright with haber process if you know that i think

all I know is N2 + 3H2 <===> 2NH3
All gaseous.

What are the conditions?

Also, how much do you know about the N2 cycle?

[master_blaster66]

200atm and 450 degrees and iron catalyst used

well ive just memorised the nitrogen cycle, but you should know about fertilizers, pesticides etc. and tyou should know what they do
hope that helped

[Jasmine_777]

do we need to know solubility product, Ksp ?

[master_blaster66]

(Original post by Jasmine_777)
do we need to know solubility product, Ksp ?

no

[Anthony Soprano]

(Original post by Ilyas)
messed up jan 2012 paper... only got 84/120 raw. Damn enzymes!

That's still an A isn't it??

[Venomilys]

(Original post by Anthony Soprano)
That's still an A isn't it??

Yep, but I want a high A* in this so I can slack off in chemistry of materials (next one), I'm better at chem by design, been getting consistent A*'s in all other papers...

[Anthony Soprano]

(Original post by Ilyas)
Yep, but I want a high A* in this so I can slack off in chemistry of materials (next one), I'm better at chem by design, been getting consistent A*'s in all other papers...

Ahh i see now Best of luck this time round, and if worst come to worst, you still have an A

[master_blaster66]

(Original post by Ilyas)
Yep, but I want a high A* in this so I can slack off in chemistry of materials (next one), I'm better at chem by design, been getting consistent A*'s in all other papers...

what did you get in f334 in jan?

[Princess Kawaii]

when you work out the oxidation number of soemthing do u take into account the big numbers infron of the compound? Or do u ignore them?

e.g. 2CuF2 is F = -2 or -4?

thnx

[Beffnaay]

Can anyone enlighten me on the nitrogen redox things? I thought I could do them but I found out that I really can't

[Princess Kawaii]

How can a solution of Ammonium Acetate act as a buffer?

[master_blaster66]

(Original post by Princess Kawaii)
when you work out the oxidation number of soemthing do u take into account the big numbers infron of the compound? Or do u ignore them?

e.g. 2CuF2 is F = -2 or -4?

thnx

F would be -2..you ignore the no. of moles

[Beffnaay]

(Original post by master_blaster66)
F would be -2..you ignore the no. of moles

Wouldn't F just be -1?