Dialysis of Sultanas prac

[Narelle01]

Can anyone shed some light on what this prac woudl involve and the stuff needed.

I have dialysis tubing... Thanks (and the teacher who requested it thanks you too)

[JelJane]

Not sure but do you mean to do something like this:-

Put sultanas, grains, dried apricots in pure water and leave them for some time. Then place them into a concentrated solution of sugar or salt. Each gains water and swells when placed in pure water, then shrinks in the concentrated solution.