7. How many mL of 5.0acid?
8. A solution was prepared by adding 920 mg of KCl to a 250-mL flask. The flask was
then filled to the mark with water. What is the percent concentration of the
9. How many grams of Mg3(PO4)2 are needed to prepare 500 mL of a 4.0 mg/dL Mg
10. What amount of Na2SO4.4H2O is needed to make 2.0 liters of a 25.0 mg/dL
11. How many grams of MgCl2.8H2O are needed to make 250 mL of a 3.00
g/dL MgCl2 solution?