Learn if a solution is saturated or unsaturated by reading a solubility curve.
Example questions
What mass of solute will dissolve in 100g of water at the following temperatures?
KNO3 at 70°
NaCL at 80°

At 90°C you dissolved 60g of NH4CL in 100 g of water.
Is this solution saturated or unsaturated?

A mass of 100g NaNO3 is dissolved in 145 g of water at 80°c