Histidine has ionizable groups with pKa values of 1.8, 6.0, and 9.2. A biochemist makes up 80 mL of a 0.11 M solution of histidine at a pH of 5.10. She then adds 60 mL of 0.10 M HCl. What is the pH of the resulting solution?
Added by Jose Miguel C.
Step 1
- The concentration of histidine is 0.11 M and the volume is 80 mL. - Moles of histidine = concentration × volume = 0.11 mol/L × 0.080 L = 0.0088 moles. Show more…
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