Osmosis required practical Flashcards
What is the first step of this practical?
Cut a potato into identical cylinders and get beakers with different solutions in them- one should be pure water and one should be a sugared down solution- there could be a few others between the concentration of 0.2,0.4,0.6
What is the second step within this practical?
Measure the mass of the cylinders, leave one cylinder in each beaker for 24 hours also
Third step of this practical?
Take cylinders out and dry them with a paper tower and measure their masses again
What is the fourth step of this practical?
If the cylinders have drawn in water by osmosis they would have increased in mass- if water has been drawn out they would have decreased in mass
Dependent variable?
chip mass
Independent variable?
Concentration of the sugar solution
What should the other variables do?
Be kept the same
How can you reduce the errors within the practical?
You should be able to repeat the practical