Grape lab, ¿Osmosis or diffusion?
Additional Details
materials:
3 white grapes
3 small jars with lids
saturated sugar solution
white grape juice
tap water
marking pen and masking tape
paper towel
small kitchen scale (digital is best)
data
white grape juice:
original mass
predicted mass
atcual mass
Saturated sugar solution:
original mass
predicted mass
atcual mass
Tap water:
original mass
predicted mass
atcual mass
3 years ago
Procedure
1. Fill one jar with white grape juice.
2. Fill a second jar with the saturated sugar solution. You can do this by putting corn syrup into warm water until no more syrup will dissolve in the water.
3. Fill the third jar with tap water.
4. Label each jar according to the solution it contains.
5. Using the kitchen scale, find and record the mass of each grape.
6. Place one grape in each jar.
7. Keep track of which grape goes in which solution.
8. Put a lid on each jar.
9. Predict whether the mass of each grape will increase or decrease over time. Explain your predictions.
10. After 24 hours, remove each grape from each jar, and dry it gently with a paper towel.
11. Using the kitchen scale, find and record the mass of each grape again.
HELPPPPP PLEASEEEEEEEEEEEEE!!!!!!!!!!!!! what process ocurre on this experiment, diffusion or osmosis?
I can’t tell you exactly which one it is, but normally, diffusion is the transfer of any substance across a semipermeable membrane (the grape I guess). Osmosis is the diffusion of water. So if the water is entering/leaving the grape, it’s osmosis. I do believe it is osmosis. In the sugar solution, the grape should shrivel because the water is leaving the grape (the grape is hypotonic). In the water, the grape should swell because water is entering it (the grape is hypertonic). In the grape juice, nothing should occur. the grape is at equilibrium with the grape juice (isotonic), and only Brownian motion, in which equal amounts of water diffuse across the membrane. In short, I think it’s osmosis.
this is osmosis. when water goes in and out in between two different in concentration of solution combined/side by side.
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