18. Aqueous Equilibrium
Henderson-Hasselbalch Equation
18. Aqueous Equilibrium Henderson-Hasselbalch Equation
4PRACTICE PROBLEM
Acetic acid is a weak acid that dissociates into acetate ion and hydronium ions in solutions:
CH3COOH(aq) + H2O(l) ⇌ H3O+(aq) + CH3COO-(aq)
The value of the dissociation constant (Ka) for acetic acid is 1.78×10-5. If you require a buffer of pH 5.25, what would be the ratio of [CH3COO-]/[CH3COOH] that you would use?
Acetic acid is a weak acid that dissociates into acetate ion and hydronium ions in solutions:
CH3COOH(aq) + H2O(l) ⇌ H3O+(aq) + CH3COO-(aq)
The value of the dissociation constant (Ka) for acetic acid is 1.78×10-5. If you require a buffer of pH 5.25, what would be the ratio of [CH3COO-]/[CH3COOH] that you would use?