1. A stock solution is prepared by adding 20 mL of 1.31 M AlCl3 to enough water to make 74 mL. What is the Al3+ concentration of 45 mL of the stock solution?
2. When 27 mL of a 430 mL stock solution containing 1.8999999999999997 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution?
3. A stock solution is prepared by adding 28 mL of 0.5 M AlBr3 to enough water to make 71 mL. How many moles of Br- are in 53 mL of the stock solution?
4. When 49 mL of a solution containing 2.1 M AlCl3 is diluted to 53 mL, a dilute solution is formed. How many moles of Al3+ ions are contained in 14 mL of the dilute solution?
5. How many milliliters of a 125 mL solution of 0.6 M K3PO4 must be used to make 59 mL of a solution that has a concentration of 0.3 M K+?
6. What is being calculated when the volume of the solution in liters is multiplied by the molarity of a solute in a solution?
the moles of solute in the solution
the moles of solution
the milliliters of volume in the solution
the molarity of the solute in the solution
the liters of solute in the solution
the volume of the solution in liters
the milliliters of water in the solution
the moles of water in the solution