The volume (in mL ) of 0 . 1 M AgNO 3 required for complete precipitation of chloride ions present in 20 mL of 0 . 01 M solution of Cr H 2 O 5 Cl Cl 2 as silver chloride is_______

Step-by-step solution

Cr H 2 O 5 Cl Cl 2 ⟶ Cr H 2 O 5 Cl + 2 Cl - Number of ionisable Cl − in Cr H 2 O 5 Cl Cl 2 ​ is 2 . Molarity of Cl – ions = 0 . 01 ×   2 = 0 . 02   M ∴ Millimoles of Cl – ions in the given solution = 20 × 0 . 02 ∴ Millimoles of AgNO 3 required = 20 × 0 . 2 V × 0 . 1 = 20 × 0 . 02 V = 4   mL