The plot of pH-metric titration of weak base vs strong acid HCl looks like which graph?

Question

The plot of pH-metric titration of weak base  vs strong acid HCl looks like which graph?

Canvas Classes · Accepted Answer

Step 1 — Identify the titration:
Weak base () in flask, strong acid (HCl) added from burette.

Step 2 — Expected pH curve:
- Initially:  solution  pH ≈ 11 (basic)
- As HCl is added: Buffer region forms ()  pH decreases gradually
- At half-equivalence point: pH = pOH = pKb = 4.74, so pH = 9.26
- At equivalence point: Only  pH ≈ 5 (acidic, sharp drop)
- After equivalence: Excess HCl  pH drops to ≈ 1-2

Step 3: The correct graph starts at high pH (~11), decreases with a buffer region, has a sharp d

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