<prompt> A red cell with a volume of 100 cu.microns and intracellular osmolality of 300 mOsm was placed in a solution with an osmolality of 100 mOsm. What will be the final volume of this cell?33.33 cu.microns50 cu.microns150 cu.microns300 cu.microns  <response>: pi Vi pf Vf 100 x 300 100 x Vf Vf 300 Pi - initial osmolality; Pf - final osmolality Vi - initial volume; Vf - final volume 