You have prepared a saturated solution of at 20 using 31.0 of water. How much more solute can be dissolved if the temperature is increased to 30?

To determine how much more solute can be dissolved when the temperature is increased to 30°C, we first need to calculate the solubility of the solute at that temperature. The solubility of a substance typically increases with temperature, so we'll need to find the solubility value at 30°C.

Unfortunately, you haven't provided the specific solute or mentioned the units for the concentration of the saturated solution. If you could provide those details, I could assist you further in calculating the solubility and determining the amount of additional solute that can be dissolved.