Potato salt concentration required practical Flashcards
1
Q
What are the three different concentrations of salt?
A
0 moles
Isotonic point
1 mole
2
Q
What happens to the potato in 0 moles?
A
Potato gains mass
Water enters potato through osmosis
3
Q
What happens to the potato at isotonic level?
A
Potato mass change 0
4
Q
What happens to the potato at 1 mole?
A
Potato loses mass
Water leaves potato through osmosis
5
Q
What are the control variables of the practical? (make results invalid)
A
- Surface area of potato slices
- Not drying potato correctly
- Zero error on pan balance
- Different potatos
