Grade 12Physical Chemistry

why is the equivalent weight of mohr’s salt 1?

ayesha

11 Years agoGrade 12

4 Answers

ankit goyal

11 Years ago

equi. wt. of mohr salt = 392 because

Equivalent weight of Mohr salt = Mol. Wt./ no. of equivalents. = 392/ 1. = 392 .

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Aarti Gupta

11 Years ago

Mohr’s salt is ferrous ammonium sulphate and its an reducing agent.The equivalent weight of Mohr’s salt is 392 which is equal to its molecular weight.This is due to the fact that oxidation of ferrous(Fe²⁺) to ferric(Fe³⁺) involves only one electron change only.
Fe²⁺ ----------> Fe³⁺ + e^--
Equivalent weight = Molecular weight/1 = 392/1 = 392

Sai Sampath

11 Years ago

Mohr’s salt is ferrous ammonium sulphate and its an reducing agent.The equivalent weight of Mohr’s salt is 392 which is equal to its molecular weight equi. wt. of mohr salt = 392 becauseEquivalent weight of Mohr salt = Mol. Wt./ no. of equivalents. =392/ 1. = 392 .

Nishanth

6 Years ago

As Mohr salt is a double salt. In aqueous solution Mohr salt gives ammonium ion ferrous ion and sulphate ions.It can act only as a reducing agent i.e., ferrous to ferric ion . So n factor is 1 . Equivalent weight is 392