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Teniche Teniche
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12 years ago
Calculate the pH at which a solution of cysteine would have no net charge.
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12 years ago
this pH is reffered to as the isoelectric point or pI , which can be calculated by averaging the pKa of the alfa carboxylic acid group of cysteine (2.05) and the pKa of the alfa ammonuim group (10.25) , then pI = 6.15 . when pH= 6.15 cysteine has no net charge
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