Question

Question 18 A group of students are conducting an experiment. Since potatoes contain both sugar and water, the students use them in the experiment. The students cut six equal cubes of potato and weigh them. They place the six cubes into six different beakers containing different concentrations of sugar solutions, then weigh each potato cube after 24 hours and calculate the percent change in massThe graph below shows the result of their experiment. Percent Change In Mass of Potato Cores Versus Sucrose Solution Concentration 10 cube 1 Change in Potato Core cube 2 -10 3 cube 4 cube 5 0.2 0.4 0.6 0.8 1.0 Concentration of Sucrose Solution Which of the statements below is a valid conclusion about this experiment? The lower the concentration of sugar , the more likely the potato will gain mass The higher the concentration of sugar , the more likely the potato will gain mass The lower the concentration of sugar, the less likely the potato will gain mass The higher the concentration of sugar, the more likely the water concentration will be at equilibrium

Answer 1

Based on the information provided in the experiment, the valid conclusion is:

The lower the concentration of sugar, the more likely the potato will gain mass.

This conclusion is derived from the principles of osmosis. When potato cubes are placed in a lower concentration of sugar solution (hypotonic solution), water moves into the potato cells from the solution, causing the potatoes to gain mass. Conversely, in a higher concentration of sugar solution (hypertonic solution), water moves out of the potato cells, leading to a loss of mass. Therefore, the trend indicated in the experiment supports this conclusion.