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Unformatted text preview: • Kb = [OH-] [lactic acid] / [lactate] • [OH-] = [(7.14 x 10-11) (0.25)]1/2 = 4.2 x 10-6 • pOH = -log [OH-] = 5.37 • pH = 14 - 5.37 = 8.63 hydrolysis - ability of ions to react w/ water to make H+, OH- ions • anions act as bases (adding proton >> acid) o identify conjugate acid, use Kw to find the strength o anions of strong acids have negligible effect o anions of weak acids increase pH • cations act as acids (subtract proton >> base) o identify conjugate base, use Kw to find the strength o cations of strong bases have negligible effect o cations of weak bases decrease pH...
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This document was uploaded on 10/30/2011 for the course CHEM 161 at Rutgers.
- Spring '08