0.01 M solution was added to 20.0 mL of 0.05 M Mohr's salt solution through a burette. The initial reading of 50 mL burette is zero. The volume of solution left in the burette after the end point is

Question

0.01 M  solution was added to 20.0 mL of 0.05 M Mohr's salt solution through a burette. The initial reading of 50 mL burette is zero. The volume of  solution left in the burette after the end point is  mL. (nearest integer)

Canvas Classes · Accepted Answer

Step 1 — Reaction of  with Mohr's salt () in acidic medium:

Step 2 — Moles of  (Mohr's salt):

Step 3 — Moles of  required (ratio 1:5):

Step 4 — Volume of  used:

Step 5 — Volume left in burette:
Initial burette reading = 0 mL (full 50 mL burette)
Volume used = 20 mL

Answer: 30 mL

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