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Wong tong research

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Wong tong research

Wong tong research

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  • 1. Matt Hathaway Dishan Abeydeera Jake Harrington Jeremy Vargas
  • 2.
    • 1.What are some uses for Vitamin C?
    • -Good Health, prevention of scurvy, transfer electrons
    • 2.What is the chemical formula for Vitamin C?
    • - C 6 H 8 O 2
    • 3.During the titration, vitamin C will be oxidized by iodine, Write the chemical equation for this equation for this reaction?
    • - C 6 H 8 O 2 + I 2  C 6 H 8 O 6 + 2I - + 2H +
    • 4. Draw the structure for Vitamin C and the oxidized version of Vitamin C.
  • 3.
    • How will the concentration of vitamin C differ between different brands of orange juice?
  • 4.
    • If there is more vitamin C present inside of the various orange juice samples then the solution of orange juice will therefore titrate at an exponential rate when reacting with iodine.
  • 5.
    • -Erlenmeyer Flask
    • -Tropicana Orange Juice
    • -Simply Orange
    • -Minute Maid Orange Juice
    • -Iodine
    • -Buret
    • -Starch Solution
    • -Pipet
    • -Electronic Scale
    -Orange Soda
  • 6.
    • 1.Fill the Erlenmeyer flash with 50mL of the Tropicana Orange Juice.
    • 2. Add 20 or more drops of the starch solution.
    • 3.Slowly dispense the iodine solution into the Erlenmeyer flask until the starch completely changes color to a dark purple. Record the initial and final volume of the buret of iodine.
    • 4.Repeat steps 1-3 substituting the various orange juices at your disposal.
  • 7. Trials Amount of Juice Initial Volume Final Volume Tropicana 1 50mL/6O mg 1.3mL 23.5mL Minute Maid 1 50mL/6O mg 23.5mL 41.7mL Simply Orange 1 50mL/6O mg 41.7ml 1mL 50mL 5mL Orange Soda 1 50mL/6O mg 5mL 7.9mL Tropicana 2 50mL/6O mg 7.9mL 26mL Minute Maid 2 50mL/6O mg 26mL 45.9mL Simply Orange 2 50mL/6O mg 1/4mL 13.5mL Orange Soda 2 50mL/6O mg 13.5mL 14.5mL
  • 8. Juice Trial Vitamin C Tropicana 1 .162 mg Minute Maid 1 .198mg Simply Orange 1 .294mg Tropicana 2 .198mg Minute Maid 2 .180mg Simply Orange 2 .271mg
  • 9.
    • Excess Iodine
    • Cracked and/or damaged glass wear
    • Insufficient Juice
    • Did not Dilute Juice
  • 10.
    • 1.Check all glass wear for any visible sign of corruption.
    • 2. Make sure safety goggles are operational
    • 3 . Dilute the Juice
  • 11. Juice Required mL Servings Tropicana 1 462mL 2 Minute Maid 1 378mL 1.63 Simply Orange 1 255mL 1.09 Tropicana 2 378mL 1.6 Minute Maid 2 416mL 1.8 Simply Orange 2 276mL 1.2
  • 12.
    • Based on our experimental data we can conclude that the more natural orange juice is DIRECTLY proportional to the amount of vitamin C. Therefore our experimental data sufficiently supports our hypothesis.