In a water potential investigation, cylinders of crosne (a type of tuber plant) are placed in sucrose solutions of various concentrations in order to determine the water potential of the crosne - one in each beaker of sucrose solution. Each cylinder of crosne has a 0.3 cm radius and a 2 cm height. The lab was conducted at a constant temperature of 20°C in open beakers. Concentration Initial Mass Final Mass
0.2M 2.3 2.41
0.4M 2.41 2.39
0.6M 2.38 1.97
0.8M 2.34 1.84
1M 2.33 1.81

Required:
a. When a yam cylinder is placed in a 0.2M sucrose solution, will water flow into or out of the yam? Explain your reasoning.
b. Based on the data above, estimate the yam's water potential.
c. Assume the same sucrose solutions were used and a sweet potato trial was conducted at the same time with the yam experiment above. A literature search determined that a sweet potato has a water potential of -19.5 bars, At what sucrose concentration would you expect to find minimal loss or gain in the cylinder of sweet potato?