b. You have purchased ten klogramis of teod erade Moso, for a cost of 51254 wow many liters of bottled woter can you ereswe from the purchmed quantity of MgSO4? c. What is the cost of the added MeSO, per icer bettle of water? 2. Another method of reporting the hardness of water is in gains (gr) per golion. Take one grain to be 17.14 parts per million of calcium carbonate. What is the hardness of the unknown sample you analyzed, reported in grains per gallon