Beast

Water Concentration in Potato Cells Formal Lab Report

Purpose: The purpose of this lab is to determine the concentration of water in potato cells.

Method: To complete this task, we will first soak our potato cells in different concentrations of sugar solutions. Before we actually soak them, we will need to know the initial mass of the potato cores. After soaking, we will need to know the mass of the final core. We will use the data we collect to find the percent change in mass of the cores

% Change in mass = (final mass – initial mass) ÷ initial mass * 100.

We will also have to share the class data and use all of the data to construct a graph that will compare the percent change in mass to the concentration of the sugar solution. Our manipulated variable is the concentration of sugar, our responding variable is the percent change in mass in the potato cores, and the controlled variables are the amount of time we soak the potato cores, the kind of potato, the temperature at which these potato cores soak, and the shape of the potato cores.

Data Table:
Percent Concentration of Sugar Water Solution
Final Mass (grams)
Initial Mass (grams)
6%
6.38g
5.91g
1.
Calculations:
Find amount of sugar needed to make the soaking solution
1) Mass of Solute (g) = (%Concentration ÷100) * total volume
2) Mass of Solute (g) = 6% ÷ 100 * 100ml
3) Mass of Solute = 6g
Find percent change in total mass
1) %Change in total mass = (Final mass–initial mass)÷ initial mass* 100
2) %Change in total mass = (6.38g – 5.91g) ÷ 5.91g *100
3) %Change in total mass = %7.95

Results:

Analysis: