'V' ml of 0.25 M AgNO3 required for complete precipitation of chloride ions present in 50 ml of 0.02 M solution of [Cr(H2O)6]Cl3.'V' = ----------------------------------- ml
No. of milli moles of complex = 50 0.02 = 1
[Cr(H2O)6]Cl3 [Cr(H2O)6]+3 + 3 Cl--
No. of milli moles of Cl-- = No . of milli moles of Ag+ = 13 = 3 ( 1 mole of complex gives 3 mole of Cl-)
V (ml) 0.25 = 3
V(ml) = 12
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