november 2001, got 2.889 years or something
0.889*12 = ~ 10.6ish months
that corresponds to november. cause x<=12
think thats right :s...?
expecting ~100/120 - got a few stupid things wrong (simpsons rule -_-. put h/2 instead of h/3)
was a fairly hard test though
yeah my bad
but how were we sposed to no the Pb2+ cations had a distinctive colour when i cant find it in and text book :s . only has precipitate tests. or were spose to assume that all metal ions produce a distinctive colour? BOS may take both answers ? :S confused lol
spose its only 1...
yeah my bad
but how were we sposed to no the Pb2+ cations had a distinctive colour when i cant find it in and text book :s . only has precipitate tests. or were spose to assume that all metal ions produce a distinctive colour? BOS may take both answers ? :S confused lol
spose its only 1...
yeah i said something like that. not all the solutions would of given a colour ie: hcl and barium nitrate. people were sayin shit like if would of been toxic with the lead nitrate being vaporised. either way
was such a good 7 marker
technitium -99 for medical - diagonistic tracer - ataches to haeglobin etc
americium - ... - for industrial use as smoke alarm
cobalt -60 - used for measure thickness in metals/ structures
ties in wit physics :D
i said industrial chemist (dnt no if thats right)- uses Le chatelliers principle lol - manages out puts /imputs of reactants and products, changes reaction conditions to increase desired product, etc - ie: haber process
thats right :s?
wat question was the haber process, i cant remember lol. abit of a blur
i fucked the concentration one to, realisted it was diprotic lik 3 mins before the end and didnt hav enough time to change all my answers for the 3 questions. sigh. if u used the 0.005 mol/L concentration for the first...
i stuffed up the harwood section =[. didnt really sudy for it, and focused on the interpretations rather than the emotions all year -_-. wrote only 3 pages :O of shit. but my writings small lol
I= 9 pages
II=3 pages
III=8 pages