Buffer solutions
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See all →- The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is[Given pK_a of CH_3COOH = 4.57] Answer: 2. 5.57 Key idea: acetate/acetic acid is an acidic buffer; use the Henderson equation. pH=pK_a+log[salt]/[acid] Equal volumes are mi... 1
- Which will make basic buffer ? Answer: 3. 100 mL of 0.1 M HCl + 200 mL of 0.1 M NH ₄ OH A basic buffer is a weak base plus its salt (conjugate acid). (1) 5 mmol NaOH + 2.5... 1