1. Based on the Henderson-Hasselbalch equation (shown below), calculate the pH when half of a solution of acetic acid is dissociated to acetate (the pK _a of acetic acid is 4.76).
pH = pK _a + log [A ^- ]/[HA]
• 1.00
• 3.76
• 4.76
• 5.76

2. Based on the Henderson-Hasselbalch equation (shown below), calculate the pH when the ratio of acetic acid to acetate is 10 to 1 (the pK _a of acetic acid is 4.76).

pH = pK _a + log [A ^- ]/[HA]
• 1.00
• 3.76
• 4.76
• 5.76

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1 Let acetic acid be HA when half ... View the full answer