Preparing Sucrose Solutions for Osmosis Experiment

This section explains how to prepare the sucrose solutions for the potato osmosis experiment observations.

Steps to prepare sucrose solutions:

1. Measure out sucrose into separate beakers for each concentration.
2. Add distilled water to reach the 100 ml mark, stirring to dissolve.
3. Label beakers with their respective concentrations (0%, 40%, 80%, 100%).

For potato chip preparation:

1. Use a cork borer to cut out potato chips.
2. Repeat to create four potato chips.

Highlight: There are alternative methods for preparing solution concentrations, such as dilutions.

Definition: Sucrose solution - A mixture of sugar (sucrose) and water used to create different concentrations for osmosis experiments.

Osmosis Required Practical: Investigating Osmosis in Potato Chips

This practical guide outlines the steps for conducting an osmosis experiment with potato chips to investigate how solution concentration affects the change in mass due to osmosis.

Key points:

• Aim: Investigate how sucrose solution concentration affects potato chip mass change
• Hypothesis: Potato chip mass will decrease as sucrose concentration increases
• Independent variable: Sucrose solution concentration (0%, 40%, 80%, 100%)
• Dependent variable: Percentage change in potato chip mass
• Controlled variables: Potato chip size, time in solution, solution volume

Highlight: Safety precautions include not consuming any solutions or potato chips and taking care when cutting potatoes.

Vocabulary: Osmosis - The movement of water molecules from an area of high concentration to an area of low concentration through a semi-permeable membrane.