1.

5g of a sample of bleaching powder is treated with excess acetic acid and KI solution. The liberated I_(2) required 50 mL of N/10 hypo. The % of available chlorine in the sample.

Answer»


Solution :MEQ of bleaching POWDER = meq of `Cl_(2) = ` meq of hypo`W/35.5 XX 1000 = 50 xx 1/10`
`W_(Cl_(2))` = 0.1775 g
`% Cl_(2) = 0.1775 xx 100 = 3.55%`


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