`As_(2)S_(3)+7NaClO_(3)+12NaOHrarr2Na_(3)AsO_(4)+7NaClO+3Na_(2)SO_(4)+6H_(2)O`
The equivalent weight of `As_(2)S_(3)` is

As_(2)S_(3) sol is ,

Balance the following equations: i. As_(2)S_(3)+NaClO_(3)+NaOHrarrNa_(3)AsO_(4)+NaClO+Na_(2)SO_(4) ii. If M is the molecular mass of As_(2)S_(3) , the equivalent weight of As_(2)S_(3) is a. M//24 , b. M ,c. M//2 ,d. M //28 .

In the reaction: Na_(2)S_(2)O_(3)+4Cl_(2)+5H_(2)O rarr Na_(2)SO_(4)+H_(2)SO_(4)+8HCl , the equivalent weight of Na_(2)S_(2)O_(3) will be: (M= molecular weight of Na_(2)S_(2)O_(3))

In the section :Na_(2)S_(2)O_(3)+4Cl_(2)+5H_(2)O rarr Na_(2)SO_(4)+H_(2)SO_(4)+8HCl . the equivalent weight of Na_(2)S_(2)O_(3) will be : (M= molecular weight of Na_(2)S_(2)O_(3) )

In the estimation Na_(2)S_(2)O_(3) of using Br_(2) the equivalent weight of Na_(2)S_(2)O_(3) is :