What is the Effect of 0.075M and 0.3M concentration on RBC's?

Answer 1

It will depend on the nature of the solute. If you are talking about NaCl, for example, 0.075 is hypotonic and will tend to rupture the RBC. 0.3 M NaCl will be hypertonic and will tend to make the RBC shrink.

Answer 2

A concentration of 0.075M would cause red blood cells (RBCs) to swell due to water moving into the cell to balance the osmotic pressure, potentially leading to cell lysis. On the other hand, a concentration of 0.3M would cause RBCs to shrink as water moves out of the cell, leading to cell dehydration and shrinkage. Both concentrations can have detrimental effects on RBCs depending on the duration of exposure.