What will happen if a blood cell is placed in a hypertonic salt solution?

A hypertonic solution is a solution that has a high concentration of solute, in this case the solute being salt. When a red blood cell is placed in a hypertonic solution, since the salt concentration is higher in the outside of the cell, the water concentration is lower there as well. Therefore, through the process of osmosis, the water diffuses from the inside of the cell to the outside of the cell.