For each of the following problems, use proper units and show ALL work: 1. If 10.7 grams of NH CI is dissolved in enough water to make 800 mL of solution, what will be its molarity? (Answer: 0.25 mol/L). 2. Calculate the molarity of a solution prepared by dissolving 6.80 grams of AgNO3 in enough water to make 2.50 liters of solution. (Answer: 0.016 mol/L). 3. How many moles of CaCb are required to prepare 2.00 liters of 0.700 M CaCb? (Answer: 1.4 moles). 4. What mass, in grams, of CaCl will be required to prepare the above solution? (Answer: 155 grams). 5. How many grams of KNO3 will be required to prepare 800 mL of 1.40 M KNO3? (Answer: 113 grams)