Example 5 Find the pH of 0.10 M H₂His²+, 0.10 M H₂His+, 0.10 M HHis, 0.10 M His™, where His stands for the amino acid histidine (pKa1=1.60, pKa2 5.97, pKa=9.28) 0.10 M H3His²+: Treat it as a monoprotic acid

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Example 5
Find the pH of 0.10 M H₂His²+, 0.10 M H₂His+, 0.10 M HHis, 0.10 M
His™, where His stands for the amino acid histidine (pKa1=1.60,
pKa2 5.97, pKa=9.28)
0.10 M H3His²+: Treat it as a monoprotic acid
Transcribed Image Text:Example 5 Find the pH of 0.10 M H₂His²+, 0.10 M H₂His+, 0.10 M HHis, 0.10 M His™, where His stands for the amino acid histidine (pKa1=1.60, pKa2 5.97, pKa=9.28) 0.10 M H3His²+: Treat it as a monoprotic acid
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