Help with sac 1...I'm

[saheh]

Ok so we had our sac last week, and it was putting sultanas in a sucrose solution
We finish our discussion tomorrow because we've had camp
So we graph it up and complete the questions tomorrow,


anyway, I've worked out my %change, and it's all over the place :/
we left them for about 40 minutes..
and yeah i expected there to be a stage where it (the osmosis rate) changed because of the sucrose content within the sultana
and this is what i got
0%= 17% + change in weight
2%= 18% + change in weight
5% = 22% + ""   ""
10%= 16% +
20% = 9% +
30% = 15% +
(all gained weight, non lost it ><)

is the discrepancy most likely an error in the 30% jar?? i'd expect it to continue going down.....
also the fact we probably didn't dry the sultanas enough...
Would I write that in my discussion??
any help would be appreciated!! thankyou!

[ILiekMudkipz]

These results...I don't even...

[InsaneMcFries]

My friend in SAC 1 weighed only two inital pieces of potato and used them as the initial weight for all other potatoes, and got a zigzag graph. Perhaps there was a major error like that? Did you wait long enough and pat them dry?