Home
Class 11
CHEMISTRY
As(2)S(3)+7NaClO(3)+12NaOHrarr2Na(3)AsO(...

`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

A

`(M)/(24)`

B

`M`

C

`(M)/(2)`

D

`(M)/(28)`

Text Solution

Verified by Experts

The correct Answer is:
D
Both `As_(2)^(+3xx2)` and `S_(3)^(-2xx3)` undergo oxidation.
`As_(2)^(+3xx2)rarr2AsO_(4)^(3-)+4e^(-)`(oxidation)
`2x= +6, 2x-16= -6`
`2x=10`
`S_(3)^(-2xx3)rarr3SO_(4)^(2-)+24e^(-)`(oxidation)
`3x= -6, 3x-24= -6`
`3x=18`
Total `e^(-)= 24+4=28`
`Ew=(M)/(28)`
Promotional Banner

Similar Questions

Explore conceptually related problems

In the standarization of Na_(2)S_(2)O_(3) using K_(2)Cr_(2)O_(7) by iodometry , the equivalent weight of K_(2)Cr_(2)O_(7) is

Among the electrolytes Na _(2) SO_(4), CaCl_(2), Al_(2) (SO_(4)) _(3) and NH_(4)Cl, the most efective coagulating agent for Sb _(2) S_(3) sol is

In the reaction 2 S_(2) O_(3)^(2-) + I_(2) to S_(4) O_(6)^(2-) + 2I^(-) . The eq. wt. of Na_2 S_(2) O_(3) is equal to its

A 2.0 g of mixture of Na_(2)CO_(3) and NaHCO_(3) loses 0.248 g when heated to 300^(@)C , the temperature at which NaHCO_(3) decomposes to Na_(2)CO_(3) , CO_(2) , the temperature at which NaHCO_(3) decomposes to Na_(2) CO_(3), CO_(3) and H_(2) O . What is the percentage of Na_(2) CO_(3) in mixture?

Calculate the moles of NaOH required to neutralize the solution produced by dissolving 1.1 g P_(4)O_(6) in water. Use the following reactions: P_(4)O_(6) + 6H_(2)O to 4H_(3)PO_(3), 2NaOH + H_(3)PO_(3) to Na_(2)HPO_(3) + 2H_(2)O (At. Mass/g mol^(-1) P=31, O=16).

In the reaction, 2FeSO_(4)+H_(2)SO_(4)+H_(2)O_(2)toFe_(2)(SO_(4))_(3)+2H_(2)O . The oxidizing agent is :