i put no oh group in molecule so cant bond hydrogen bond with water dyu think id get the mark?
I think you should do! Unless they penalize you on 'Hydrogen bonding'. Don't think they would do. But it came up on a past paper and it did say H bonding, because that's the whole point of the OH to bind with H in H20 . Hopefully they don't penalize you though.
I put CH2 at first but I thought it's impossible for one carbon atom to be cyclic.
I'm don't know anymore. I'm pretty sure it is CH2. They DIDN'T* say 'make sure the empirical formula is also cyclical'. It's just the simplest whole number ratio.?
yes i did -2.68/0.02 i think what i founbd weird fore this was it said answer must be in 3 sig fig and answer was already in 3sigfig
exacly hahaha and did you get for part a ) 2.6753 something cause i did the 50+0.05 ? and for the question on suggest why cfc banned but still there are i wrote of planes release cfcs and cars when release exhaust fume contains cfc?
can you say for the bit about why cfcs dont hydrolise with water, because of the polarity of the c-f and c-cl bonds, repel the OH?!?!?! and for the energy question where you had to work out the Q = MxcxdeltaT, and then work out the number of moles(which was 0.02).. and then the next question you had to divide Kj/moles..did you times your answer by two? because in the jan 2011 paper, it was a similar question and you had to times by 2