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The minimum concentration of an electrol...

The minimum concentration of an electrolyte required to cause coagulation of a sol is called its flocculation value.It is expressed in millimoles per litre.If the flocculation value of `MgSO_4` for standard `As_2S_3` sol is 3.33. How many milligrams of `MgSO_4` is to be added to 20ml standard `As_2S_3` sol so that flocculation just state ?

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Flocculation value for As_2S_3 sol by HCl is 30 mmole L^( –1) . Calculate mass of H_2SO_4 required in gram for 250 mL sol.

coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. the coagulation of colloidal particles fo the sol can be caused by :

coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. coagultion value propto = 1/("coagulating power") the coagulation values of differnt electrolytes are different . this behavious can be easily uderstood by Harby - schulze rule which states. the greater is the valency of the effective ion grreater is its coagulating power," which one had the highest coagulating powe?

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