The flocculation value of HCl for arsenic sulphide sol. is 30 m molL^-1 . If H_2SO_4 is used for the flocculation of arsenic sulphide, the amount, in grams, of H_2SO_4 in 250 ml required for the above purpose is __________ . (molecular mass of H_2SO_4 = 98g//mol)
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 ?
Volume of 0.1M""H_(2)SO_(4) required to neutralize 30 mL of 0.2 N""NaOH is
The negative charge on As_2S_3 sol is due to adsorption of :
