A researcher investigated the percentage change in mass of sweet potato cylinders immersed in sodium chloride solutions of concentrations 0.0 mol dm-3, 0.2 mol dm-3, 0.4 mol dm-3, 0.6 mol dm-3, and 0.8 mol dm-3.
Describe how the researcher could determine a more precise estimate for the concentration of sodium chloride that is isotonic to the cytoplasm of the sweet potato cells (where no net osmosis occurs).
