Acidity of Common Beverages

Acidity of Common Beverages - Acidity of Common Beverages...

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Acidity of Common Beverages Purpose: To test the acidity of two commercial beverages using a titration curve and the amount of base necessary to neutralize the acid. Procedure: 1. Pipet 25mL of one of the beverages into a 200mL beaker 2. Record pH of solution with a pH meter 3. Add 25mL of deionized water and place beaker on stirrer with moderate pace 4. Add 150mL of 0.10M KOH to the buret 5. Titrate the solution in increment of 0.5 mL recording volume and pH after each addition until pH is 11 or greater 6. Repeat the titration for this beverage again 7. Do a pair of titration for the other beverage Data: OH OJ Milk 0 3.99 6.56 0.5 4.01 6.54 1 4.05 6.65 1.5 4.09 6.89 2 4.12 7.05 2.5 4.17 7.24 3 4.21 7.55 3.5 4.25 7.91 4 4.29 8.36 4.5 4.32 8.8 5 4.36 9.16 5.5 4.4 9.47 6 4.44 9.68 6.5 4.49 9.81 7 4.52 9.98 7.5 4.56 10.08 8 4.6 10.18 8.5 4.6 9 4.69 9.5 4.73
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10 4.77 10.5 4.82 11 4.86 11.5 4.91 12 4.96 13 5.06 14 5.16 15 5.27 16 5.4 17 5.52 18 5.65 19 5.78 20 5.93 20.5 6.01 21 6.09 21.5 6.19 22
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Acidity of Common Beverages - Acidity of Common Beverages...

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