To prepare a 2 M solution of potassium nitrate (KNO3), which quantities must be measured? The mass of the solute and the volume of the must be measur

Answer 1

Mass of the solute (KNO3) and the volume of the solvent (distilled water water).

For each liter of water you need 2 moles of KNO3. So mass required will be 2 x molecular mass of KNO3 (in g)