Chemistry trouble

[Ixion]

If you think chemistry sux, how can you get into biology? Biological processes don't happen by magic, it's all chemistry!

It's been years since I really did any titrations so take my advice with a grain of salt. With the titration could you not titrate the grape juice with DCPIP (dichlorophenolindophenol)? a 0.1% solution will react with ascorbic acid and form a blue solution when all the ascorbic acid's used up so you can tell how much ascorbic acid you had to begin with. The grape juice being coloured might make it difficult though. More info on it here anyway. http://www-saps.plantsci.cam.ac.uk/osmoweb/vitc.htm

I think this may be problematic with grape juice due to the presence of tannins and tannic acid (might be better with white grape juice ?). Tannins are also reducing agents an will decolourise the DCPIP. (The DCPIP is actually blue in its native state, the ascorbic acid decolourises it.)

But I also have not been involve this stuff for donkeys years.

[MrMelon]

We learned the mechanism of how LSD is cyclised from a reasonably simple precursor today! Who said chemistry lectures were all boring

[Curious_AJ]

oooh LSD!!!!!!

[doc]

oooh LSD!!!!!!

I have friends that in the 70's worked in institutions, where they called for volunteers to experiment in the use of LSD. But back to topic about this juice how's it going with the vodka suggestion.

[flash]

well the seal didnt work, and i had yesteray off school, so im really behind now , ill try fix it on monday though, even if i have to wag all my classes to do so :P