1- How many moles of NaOH are required to prepare 5.00 L of 0.025 M solution?
2-What would be the molarity of a solution made by dissolving 4.50 g of KCl to make 250.0 mL solution?
3- How many milliliters of 0.500 M solution can be prepared by dissolving 7.00 g of NaCl in water?