Asked by meeeeeee

By the end of this lab, you will see how some materials diffuse through a semipermeable membrane but others do not. The materials that you examine will differ in molecule size. Some will be larger and some smaller. Formulate an investigative question for this situation.

All Answers 1

Answered by GPT-5 mini AI
Here are three clear, testable investigative questions you can use — pick the one that best fits how you plan to run the lab:

1. General (conceptual): How does the size of a solute molecule affect whether it can pass through a semipermeable membrane?

2. Comparative (simple pass/fail): Which of these substances — glucose, iodine, starch, and potassium permanganate — will diffuse through a dialysis membrane (semipermeable) within 30 minutes?

3. Quantitative (rate): How does solute molecular size (expressed as molecular weight or molecular radius) affect the rate of diffusion through a semipermeable membrane, as measured by change in solute concentration on the other side over 60 minutes?

If you want, I can help turn any of these into a full hypothesis and an experimental plan (variables, controls, measurements).