100 ml of 0.0018% (w/v) solution of Cl$-$ ion was the minimum concentration of Cl$-$ required to precipitate a negative sol in one h. The coagulating value of Cl$-$ ion is _________ (Nearest integer)
Answer (integer)
1
Solution
Coagulation value The minimum concentration of electrolyte in millimoles required to cause coagulation of 1 L of colloidal solution. <br/><br/>Given, 0.0018 g Cl<sup>$-$</sup> present in 100 mL solution<br/><br/>Coagulation value of Cl<sup>$-$</sup> is $= {{{{0.0018} \over {35.5}} \times {{10}^3}} \over {0.1}} = 0.5070 \simeq 1$
About this question
Subject: Chemistry · Chapter: Surface Chemistry · Topic: Adsorption
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