In a lab I did, I put slices of potatos in varying amounts of sugar concentrations and one control group which contained only water and no sugar.
What is suppose to happen? My data tells me that the potato weighed heavier after a day of being submerged. Is that correct? In relation to water and sugar, what is the concentration of a potato?
Also, how does the concentration of the sugar affect the potato?
http://answers.yahoo.com/question/index?qid=20080201080331AA7sBBk
If the potato gained mass,that means water from the sugar solution diffused into the potato.
If you had placed them in a more concentrated sugar solution, the potatoes would have lost water.
We are not in competition with Yahoo. Please don't post questions all over the web, it just wastes a lot of volunteers time.
Thanks.
Take two bulb in one of them put milk in which sugar is dissolved and in another bowl put simple water of same quantity put both of them ice box which one will be freezes first and why?
In your lab experiment, you observed the effects of sugar concentrations on sliced potatoes. Let's break down your questions:
1. What is supposed to happen?
By placing potato slices in varying sugar concentrations, you were testing the process of osmosis. Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration (lower concentration of sugar) to an area of higher solute concentration (higher concentration of sugar). This means that, depending on the concentration of the sugar solution, water will either move into or out of the potato cells to reach equilibrium.
2. Did the potato weigh heavier after being submerged for a day?
Based on your data, if the potato slices weighed heavier after being submerged in sugar solutions, it suggests that the concentration of sugar in those solutions was higher than in the potato cells. As water moved from the potato cells into the more concentrated sugar solution, the cells would undergo osmosis, causing loss of water from the potato and potentially resulting in weight gain of the surrounding solution. It's essential to verify your data to ensure accurate measurements.
3. What is the concentration of a potato in relation to water and sugar?
The concentration of a potato can be understood using terms like hypotonic, hypertonic, and isotonic. If the concentration of the sugar solution is higher than the concentration inside the potato cells, the solution is hypertonic. If the concentration of the sugar solution is lower than the concentration inside the potato cells, the solution is hypotonic. When the concentrations are equal, the solution is isotonic. The terms hypertonic, hypotonic, and isotonic describe the relative concentrations of solute (sugar) inside and outside of the cells.
4. How does the concentration of sugar affect the potato?
The concentration of sugar outside the potato cells affects the movement of water through osmosis. If the sugar concentration is higher outside the cells, water will move out of the cells, causing the potato to shrink or lose weight. If the sugar concentration is lower outside the cells, water will move into the cells, causing the potato to swell or gain weight. The direction and magnitude of osmotic movement depend on the relative concentrations in and around the potato cells.