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chemistry paper 31 discussions

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sweetie:
okay....

for the Que. about why the organic needs heat while the other reaction doesnt, i wrote that no of electrons in the organic comp. waz more than in HCl so stronger van der waals forces and more energy is needed to break it down and hence begin a reaction ..  :-\

nd ya da oxide waz F2O and guyz hw did u prove in da last Q. that the polycarboxylic acid had 2 carboxyl  groups ???

leebux101:
u calculate the moles of each. u will see tht two moles of base are needed for 1 mole of the acid
this means that two OH are needed for neutralizing the acid which means tht 2 acud groups are present

leebux101:
and isnt this p21,instead of 31

sweetie:

--- Quote from: Bakhtawar on June 03, 2010, 03:18:49 pm ---and isnt this p21,instead of 31

--- End quote ---
ya its p21

leebux101:
phew...lol
anyway this ppr was pretty good compared to previpus years...
lets keep the diavussion alive ppl...any more questions..?

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