The two questions I have are: 1. What problem was being investigated? 2. On the
ID: 17415 • Letter: T
Question
The two questions I have are:
1. What problem was being investigated?
2. On the basis of the observations after 10 minutes, which beaker contained the distilled water? Explain.
9. The following diagram shows a carrot used as an osmometer. Scientists set up an experiment by placing carrots In two beakers. each one containing a different solution: either distilled water o a 10% salt solution. Unfortunately. the scientists forgot to label the contents of their beakers so they don't know which one contained the salt solution and which one contained the distilled water.Explanation / Answer
1) The problem being investigated is the rate of osmosis across the membrane and its dependence on the solute concentration.
2) On the basis of observations:
A contains the pure water
B contains 10 % salt
Explanation: Remember that water will move down a concentration gradient (high concentration to low concentration) in osmosis. In this case, there is an increase in water level in the carrot in A, which means that the beaker had a higher concentration of water (i.e. pure water) that moved to a region of lower concentration. Conversely, the opposite is true for B. In this case, the water moved into the beaker (into the lower concentration of water i.e. the 10% salt). **More salt means a lower concentration of water.
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