Question

equivalent weight of cu in cuo is 63.6 and in cu2o is​

Answer 1

In CuO : (Cu of bivalent nature)

Eq. wt. of Cu. = 63.6/2 = 31.8

In Cu2O : (Cu of monovalent nature)

Eq. wt. of Cu = 63.6/1 = 63.6

Answer 2

Equivalent weight of Cu in $Cu_2O$ is​ 63.5

Explanation:

Equivalent weight is calculated by dividing the molecular weight by n factor.  

${\text{Equivalent weight}}=\frac{\text{Molecular weight}}{n }$

where n = acidity ,for bases  

n= basicity, for acids

n= valency, for elements

n= cationic charge , for compounds

n = 1 for Cu in $Cu_2O$

${\text{Equivalent weight}}=\frac{63.5}{1}=63.5$

Equivalent weight of Cu in $Cu_2O$ is​ 63.5

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