1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Dilution Worksheet Describe how you would prepare 2.00 L of 0.100 M K2CrO4 from 1.75 M K2CrO4 stock solution. 50.00 mL of concentrated nitric acid (16M HNO3) is diluted to 1.000 L. What is the concentration of the new solution? A solution is prepared by dissolving 10.8 g ammonium sulfate in enough water to make 100.0 mL stock solution. A 10.00-mL sample of this stock solution is then placed in a 50.00-mL volumetric flask and diluted to the mark with water. What is the molarity of the new solution? 30.00 mL of water is added to 20.00 mL of 0.0500 M sodium carbonate. What is the molarity of sodium ions in the new solution? What volume of 0.100 M NaCl is needed to react completely with 5.00 mL of 0.200 M Pb(NO3)2 ? We need a 0.60 M NaCl solution. Starting with 50.00 mL of 0.300 M NaCl, what must you do? (Assume there is no other source of NaCl available to you.) How would you prepare 25 mL of 0.010M NaCl starting with a 0.500 M NaCl solution? If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it? If I dilute 250 mL of 0.10 M lithium acetate solution to a volume of 750 mL, what will the concentration of this solution be? If I leave 750 mL of 0.50 M sodium chloride solution uncovered on a windowsill and 150 mL of the solvent evaporates, what will the new concentration of the sodium chloride solution be? To what volume would I need to add water to the evaporated solution in problem 3 to get a solution with a concentration of 0.25 M? An experiment requires 2.00 L of 0.200 M hydrochloric acid (HCl) solution. What volume of concentrated hydrochloric acid, containing 11.9 M hydrogen chloride, is needed? A chemist adds water to 120 mL of a 6.0 M solution of NaOH until the final volume is 2.0 L. What is the molarity of the resulting solution? What concentration results when 150 mL of a 0.36 M solution of magnesium sulfate, MgSO4, are added to enough water to give a final solution volume of 750 mL? What concentration results when 150 mL of a 0.36 M solution of magnesium sulfate, MgSO4, are added to 750 mL of water? Describe how you would prepare 250.0 mL of a 1.00 M NaOH solution.