Mechanisms of transport: tonicity and osmoregulation

A group of biology students weighed several potato cubes and placed them in open beakers containing various sucrose solutions at ${30}^{\circ }\text{C}$‍. The following day, the students weighed the potato cubes again and calculated the differences in mass.

It was determined that solute potential equilibrium was reached at $0.35\text{M}$‍.

Solute potential of a solution: ${\psi }_s=-iCRT$‍