is titrated with ferrous ammonium sulphate hexahydrate in presence of dilute . Number of water molecules produced for 2 molecules of is

Question

is titrated with ferrous ammonium sulphate hexahydrate in presence of dilute . Number of water molecules produced for 2 molecules of  is

Canvas Classes · Accepted Answer

Step 1 — Balanced reaction of  with FAS (Mohr's salt) in acidic medium:

Ferrous ammonium sulphate hexahydrate =

The redox reaction:

Step 2 — Water from the reaction itself:
8  molecules from the redox reaction for 2 .

Step 3 — Water from the hydrated salt:
10 moles of  are used.
Each mole has 6 water molecules →  water molecules.

Step 4 — Total water molecules:

Answer: 68

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