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Chemistry Paper 2

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well chemistry endorsed book says phosphorus as liquid.......... the latest edition book..... so just remembered this thing and quickly wrote phosphorus down without giving a second thought......... i hope its correct :D
 
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i dont remember exactly...i think it was both ov em ;) cuz where ever there will be -OH it will react will all of the -COOH groups
 
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Ahan, Im darn confused about that. What I drew was one -COOH group to ester group and the other remains.
This is what wiki says

" It hydrolyzes, producing maleic acid, cis-HOOC–CH=CH–COOH. With alcohols, the half-ester is generated, e.g., cis-HOOC–CH=CH–COOCH3."

^BIG RELIEF ! By it, they mean maleic anhydride which on hydrolysis produces the acid.
 
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:( I don't know why I drew the displayed formula instead of skeletal for cis-trans isomerism. How many marks was that part? :(
 
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well chemistry endorsed book says phosphorus as liquid.......... the latest edition book..... so just remembered this thing and quickly wrote phosphorus down without giving a second thought......... i hope its correct :D
Si an P both have chlorides that are volatile liquids, so both answers should be correct.
 
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35 in P12, 53 in P22 and 16 in P33.........Will these marks in chemistry fetch me an A in AS?
 
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Ohhh... for temperature and catalyst I didn't use that, but for pressure I used it BUT I wrote 2 answers for that, so I guess they will give me marks for that,
And btw, that emperical formula that we had to finddd...... what was that? I got C10H13O11
Hey I got C10H13O11 too!
It was hard finding the integral number right? then everything came out right on multiplication with 10?
 
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guys if we have wrong answer for empirical formula
how many marks will we get for working?

Yeah you get 1 mark i saw in marks schemes you get it for the part where you work out the moles for each element provided they are right duhh!
 
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