Lab 7 Materials

Materials

  • Student tray containing the following:
    • 1-10 mL graduated cylinder
    • 1-200 mL volumetric flask
    • 1-cork or small square of Parafilm
    • 2-50 mL Erlenmeyer flasks
    • Labeling tape and marker
    • Balance – 3 decimal places
    • 1-150 mL buret
    • Ring stand with buret clamp
    • Hot plate
    • 50 mL beaker
    • ~3.5 mL  2.5 M Sodium Hydroxide (NaOH)
    • ~ 350 mLDeionized water
    • ~0.30 g potassiumacidphthalate (KHP)
    • ~2 mL Phenolphthalein Indicator
    • ~20 mL clear carbonated beverage
    • ~.05 g citric acid

Safety and Notes

  • Sodium hydroxide is caustic. If it gets on your skin, flush with copious amounts of water and inform your instructor.
  • All waste must be disposed of in the CHM 111 Waste container in the back hood.
  • Return all materials to trays and drawers in a clean orderly condition for the next class.