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Unformatted text preview: because pH measure the degree of disassociation of acids and bases and since alcohol does not disassociate it will have no free OH- or H+ ions to measure. Results The pH of the orange juice was 4 and the pH of the rubbing alcohol was 7. pH = -log H+ H+ = 10 ^ -pH H+ of orange juice = 10^ -4 = .0001 H+ of Rubbing alcohol = 10^ -7 = .0000001 Discussion As I hypothesized I believe I got these results due to what these solutions contained and how they reacted in aqueous solutions. The orange juice due to its high concentration of citric acid would yield a reading of an acid on the pH scale. The rubbing alcohol due to its interactions within aqueous solutions and its inability to dissociate, unlike other acids and bases, resulted in a neutral pH reading. The disassociation is very important in determining pH of a solution because it allows there to be free floating H+ ions and OH- ions....
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- Spring '09
- pH, teacher assistant, Katherine Somefun, pH Lab Assignment