How much aluminum hydroxide is needed to make 100 ml of 0.5 M base solution?     What is the molarity of 500 ml of a solution containing 50 g of sodium chloride?     Calculate the molarity of a solution that contains 0.43 grams of KBr in 325 ml of solution?     Given a 6M HCl stock solution, describe how to prepare 225 cm3 of 0.5 M acid solution.     How many grams of nitric acid are in 200 ml of a 2 M dilution of nitric acid?     What is the molarity of a solution containing 5.75 grams of sulfuric acid per 125 cm3?     You are given the following: 25 ml of 2M NaOH stock solution and 200 ml of distilled water. When these two are mixed, what is the concentration of the resulting solution?     Given a 0.25 M stock solution of copper (II) nitrate, how many grams of copper (II) nitrate are in 250 cm3 of the solution?     You are given enough 2.2 M HCl to have 15 grams of the acid. What volume, in cubic centimeters, of the solution are you given?   Hint: You must make the dimensional analysis units work to get the right answer! The correct answer, rounded off to 2 significant figures, is 190 cm3.   Concentrated sulfuric acid is 18M. You are asked to prepare 500 cm3 of 0.5 M H2SO4. How much concentrated sulfuric acid is required?