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Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height

ID: 1042716 • Letter: D

Question

Data: Potato Disks BEFORE Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A 20 % w/v NaCl Cm Potato Disk "B" 0.9 % w/v NaCl Cm Potato Disk "C" Distilled Water Watert 2.1 cm m 1.97 Data: Potato Disks AFTER Soaking (1 point for each blank) Mass Diameter Height Potato Disk "A" 20 % w/v NaCl Ito34 em Potato Disk "B .259 0.9 % w/v NaCl 21 cm Potato Disk "C Distilled Water Mass Calculation (1 point for each blank except 2 points for % change) Disk AV54 AFTER Soaking 1.6349 1.259a 0.973a BEFORE Soaking Percent Change 1,21% 30.86% q5:06% 1.821 g Disk B Disk C Volume Calculation (1 point for each blank except 2 points for % change) BEFORE Soaking AFTER Soaking Percent Change Disk A 1,580 cm 1,03, 3 Disk B,25b em 560 Disk C 34,30 % 3.111cm? _ 1,809 cm? 62.35 41

Explanation / Answer

An isotonic solution is when two solutions, separated by a semipermeable membrane, have equal concentrations of solutes and water.

A hypotonic solution is one in which the concentration of solutes is greater inside the cell than outside of it, and a hypertonic solution is one where the concentration of solutes is greater outside the cell than inside it.

20% NaCl is hypertonic and flow of water is from potato to solution and 0.9% is isotonic and thus no water flow and the deionized solution is hypotonic and flow of water is from solution to potato.