General information:
Sodium acetate is a salt of acetic acid which has pKa value of 4.76 (Ka = 1.75×10-5). It accepts a proton from water to produce acetic acid and hydroxyl ions in solution.
Calculation:
Firstly, Kb of sodium acetate is calculated as the following:
pKw = pKa + pKb
14.00 = 4.76 + pKb
pKb = 9.24
Sodium acetate is a salt of acetic acid which has pKa value of 4.76 (Ka = 1.75×10-5). It accepts a proton from water to produce acetic acid and hydroxyl ions in solution.
Calculation:
Firstly, Kb of sodium acetate is calculated as the following:
pKw = pKa + pKb
14.00 = 4.76 + pKb
pKb = 9.24
Kb= 10-pKb = 10-9.24 = 5.75×10-10
Next, pH is calculated using online pH calculator or by applying the equation used for calculating pH of a weak base in solution as the following:
pH of 0.1 M sodium acetate solution is 8.88.
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