Question

Question 4 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 mass . The graph below shows the result of their experiment . Percent Change In Mass of Potato Cores Versus Sucrose Solution Concentration 25 20 15 10 cube 1 5 Percent Change in Potato Core Mass cube 2 -5 -10 cube 3 -15 -20 cube 4 cube 5 cube 6 -25 1.0 0.2 04 0.6 0.8 Concentration of Sucrose Solution Which of the statements below is a valid conclusion about this experiment ? a The higher the concentration of sugar the more likely the water concentration be at The lower the concentration of sugar, the less likely the potato will gain mass The lower the concentration of sugarthe more likely the potato will gain mass The higher the concentration of sugarthe more likely the potato mass

Answer 1

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

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

This conclusion is consistent with the principles of osmosis, where water moves from an area of lower solute concentration (in this case, the potato) to a higher solute concentration (the sugar solution). Therefore, in lower concentrations of sugar solution, there is a higher likelihood for the potato cubes to gain water and increase in mass. Conversely, in higher concentrations of sugar solution, the potato cubes are likely to lose mass due to water moving out of the potato and into the solution.