Question

Which would allow you to add more powdered mix to the water?

Dissolve the powdered mix first because it increases solubility of the powdered mix.

Dissolve the powdered mix first because it is easier to stir when the water is cold.

Heat up the water first because it increases solubility of the powdered mix.

Heat up the water first because it is easier to stir when the water is hot.

Answer 1

Heat up the water first because it increases solubility of the powdered mix.

Rationale: for most solids dissolved in water, solubility rises with temperature, so hotter water can dissolve more powder (molecular motion increases and the solvent can accommodate more solute).