Who says ill do better next time round ... lol
The next chemistry unit is MASSIVE ...
I really really really didnt want to retake anything in june ...

Reply 1186

i_hate_ucas

Original post by The medjai

why would we need to prove it was carbonyl? The guy said it was either aldeyde or ketone.

no he said he THOUGHT it was an aldehyde or ketone, i made this mistake too and just wrote about tollens but part b) made me realise i needed to talk about bradys reagent too in the first one

Reply 1187

the real viper

Original post by Madmaz

You didn't need the arrow to the H+ on the last step, it was just steps 2 and 3.

And I added an extra 2 carbons on te dimer one. damn! oh well one out of 2 for a very hard question!

you do because it goes to form an OH group if you read the frikkin question!?!?!?! GOD RAGE DON'T THEY TEACH PEOPLE ANYTHING NOWADAYS GRR PPL LYK YOU MAKE ME SO ANGRY!!!!! MMMPHH!!

Reply 1188

Kirya

Original post by i_hate_ucas

no he said he THOUGHT it was an aldehyde or ketone, i made this mistake too and just wrote about tollens but part b) made me realise i needed to talk about bradys reagent too in the first one

same. part two made me realise i had to talk about 2,4-DNP.

Reply 1189

Kirya

How many marks would i lose for drawing the right ester for the last question, but then accidently naming it wrong.

Reply 1190

G-Sci

Original post by i_hate_ucas

no he said he THOUGHT it was an aldehyde or ketone, i made this mistake too and just wrote about tollens but part b) made me realise i needed to talk about bradys reagent too in the first one

It was only a 2 mark question, i didnt even mention tollens. i figured than 2,4 DNP and that it goes orange would be worth two marks!

Reply 1191

Tingkerbell

How sneaky to combine 2 mechanisms into 1!

Reply 1192

Legendrew

Original post by Kirya

How many marks would i lose for drawing the right ester for the last question, but then accidently naming it wrong.

probably one

Reply 1193

SmithytheDrummer

Original post by the real viper

you do because it goes to form an OH group if you read the frikkin question!?!?!?! GOD RAGE DON'T THEY TEACH PEOPLE ANYTHING NOWADAYS GRR PPL LYK YOU MAKE ME SO ANGRY!!!!! MMMPHH!!

It did specify steps 1 and 2 and OH wasn't one of the products from step 2 only H+ and that wasn't even part of step 1/2..

Reply 1194

TitchTheAntiHero

Original post by the real viper

you do because it goes to form an OH group if you read the frikkin question!?!?!?! GOD RAGE DON'T THEY TEACH PEOPLE ANYTHING NOWADAYS GRR PPL LYK YOU MAKE ME SO ANGRY!!!!! MMMPHH!!

step one and the itermediate, you didn't have to do that bit

Reply 1195

the real viper

Original post by SmithytheDrummer

It did specify steps 1 and 2 and OH wasn't one of the products from step 2 only H+ and that wasn't even part of step 1/2..

Nah man, 'ere me. The thing they were make was summin like C6H5SO2OH therefore on the last step...STEP 2. You had to do a curly arrow 2 the hydrogen or else you get C6H5SO2O -ve seeeeeeee!!