Chapter 8, Problem 8.51P

If the solubilityofKClin 100 mL of ${\text{H}}_{\text{2}}\text{O}$ is 34 g at $\text{20 }°\text{C}$ and 43 gat $\text{50 }°\text{C}$ , label each of the following solutions as unsaturated, saturated, or supersaturated. If more solid is added than can dissolve in the solvent, assume that undissolved solid remains at the bottom of the flask.
adding 30 g to 100 mL of ${\text{H}}_{\text{2}}\text{O}$ at $\text{20 }°\text{C}$
adding 65 g to 100 mL of ${\text{H}}_{\text{2}}\text{O}$ at $\text{50 }°\text{C}$
adding 20 g to 50 mL of ${\text{H}}_{\text{2}}\text{O}$ at $\text{20 }°\text{C}$
adding 42 g to 100 mL of ${\text{H}}_{\text{2}}\text{O}$ at $\text{50 }°\text{C}$ and slowly cooling to $\text{20 }°\text{C}$ to give a clear solution with no precipitate