5 ml of A s 2 S 3 is mixed with distilled waterand 0 .01 M solution of an electrolyte AB so that total volume is 10 ml . it was found that all solution containing more than 5 ml of AB coagulate within

Question

5 ml of A s 2 S 3 is mixed with distilled waterand 0 .01 M solution of an electrolyte AB so that total volume is 10 ml . it was found that all solution containing more than 5 ml of AB coagulate within 5 min . What is the Flocculation value of AB for A s 2 S 3 sol?

TestHub · Accepted Answer

A minimum of 5 ml of AB is required to coagulate the sol, the moles of AB in sol is = 5 × 0.01 10 = 0.005 m o l e s this means that a minimum of 0 .005 moles or 0.005 × 1000 = 5 milli moles are required for coagulation 1 litre of sol. flocculation value of AB for A s 2 S 3 sol = 5

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