1.

Bleaching powder and bleach solution are produced on a large scale and used in several household products. The affectiveness of bleach solution is often measured by iodometry. 25 ml of household bleach solution is

Answer»

0.48 M
0.96 M
0.24 M
0.024 M

Solution :`eq_(I_(2))=eq_(Na_(2)CO_(3))=eq_(Cl_(2))`
`eq_(Cl_(2))` LIBERATED = `(4.8)/(1000)xx0.25`
`therefore` moles of `Cl_(2)=(48xx0.25)/(1000xx2)`
`therefore` moles of bleaching powder = `6xx10^(-3)`
`therefore` MOLARITY = `(6xx10^(-3))/(0.025)=0.24M`


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