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  4. How many ions per molecule are produced in the solution when Mohr salt is dissolved in excess of water ?

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Q. How many ions per molecule are produced in the solution when Mohr salt is dissolved in excess of water ?

KCETKCET 2015Coordination Compounds

Solution:

Double salt (such as Mohr salt) dissociate into simple substances or ions completely when dissolved in water. Mohr' salt is

$FeSO_4 . (NH_4)2SO_4 . 6HzO$

$FeSO_4 . (NH_4)_2SO_4 . 6HzO \xrightarrow[{\text{water}}]{\text{Exces of }} Fe^{2+} + 2NH_4^+ 2SO_4^{2-} + 6H_2O$

So, total ions dissociated 5.