The dissociation constant of acetic acid is . When 25 mL of 0.2 M solution is mixed with 25 mL of 0.02 M solution, the pH of the resultant solution is found to be equal to 5. The value of x is

Question

The dissociation constant of acetic acid is . When 25 mL of 0.2 M  solution is mixed with 25 mL of 0.02 M  solution, the pH of the resultant solution is found to be equal to 5. The value of x is

Canvas Classes · Accepted Answer

Step 1 — Concentrations after mixing:
Total volume = 50 mL

Step 2 — Henderson-Hasselbalch equation:

Step 3 — Find :

Answer: 10

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