1. The problem statement, all variables and given/known data you want to prepare 500 ml of 1 M KNO3 at 20 C, but your lab and water are 24 C. How many grams of solid KNO3 (density= 2.109 g/ml) should be dissolved in a volume of 500 ml at 24 C so that the concentration will be 1 M at 20 C? what apparent mass of KNO3 weighed in air is required? 2. Relevant equations Molarity = moles solute/liters solvent and dimensional analysis 3. The attempt at a solution i'm really not sure what to do with this..typically i am good with this kind of question but it was kind of thrown at us, and i've never seen the temperature issue before. please help!