Question

The solubility of glucose at 30°C is 125 g/100 g water. A solution is made by adding 250 g of glucose to 100 mL of water at 30°C. Remember that 1 g water = 1 mL water. How would you classify this type of solution?

heterogeneous

saturated

supersaturated

unsaturated

Answer 1

Solubility at 30°C = 125 g glucose / 100 g water. You added 250 g to 100 g water, so only 125 g can dissolve and 125 g remains undissolved. That means the solution has the maximum dissolved solute (saturated) and coexists with undissolved solid (heterogeneous).

If one choice must be picked: saturated (and therefore heterogeneous).