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Name: Professor: Course: Date: Table 1 Solution pH Vinegar 3 Apple Juice 4 Grapefruit Juice 3 Sprite 3.42 Bleach 11 10 mM HCl 2 1.0 mM HCl 3.01 0.01 mM HCl 2 DI H 2 O 7
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Table 2 Solution Initial pH pH after Acidification Dl H 2 O 7 2.04 0.1M NaCl 7.5 4 Skim milk 6.5 6.5 0.1 M phosphate buffer 7.2 7.2 questions a. The PH of Dl H2O was initially 7 and changed with almost 4.06 units to a PH of 2.04. This is as result of the addition of 0.1M HCl. HCl is a strong acid and hence the H+ ions of the acid dissociate and therefore the number of H+ in the solution increase hence the solution becomes acidic. The initial PH of 0.1M NaCl was 7 but had a 3 units change after acidification. The final solution has a PH of 4. This change of pH is caused by reaction. The pH of skim milk and that of 0.1M Phosphate buffer didn’t change. This was
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