The following data is obtained for coagulatin | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The coagulating value (or flocculation value) is defined as the minimum concentration of an electrolyte in millimoles per liter $(mmol \cdot L^{-1

Vedclass · Accepted Answer

$7 	imes 10^{-2}$

Vedclass · Answer

(B) The coagulating value (or flocculation value) is defined as the minimum concentration of an electrolyte in millimoles per liter $(mmol \cdot L^{-1})$ required to cause the precipitation of a sol in $2$ hours.From the provided data,the minimum concentration required for precipitation is $7 	imes 10^{-5} \ mol \cdot L^{-1}$.To convert this to the coagulating value in $mmol \cdot L^{-1}$:$	ext{Coagulating value} = 7 	imes 10^{-5} \ mol \cdot L^{-1} 	imes 10^3 \ mmol \cdot mol^{-1} = 7 	imes 10^{-2} \ mmol \cdot L^{-1}$.

Conc. of $Cl^{-}$ in $mol \cdot L^{-1}$	Result
$5 \times 10^{-5}$	Sol not precipitated
$6 \times 10^{-5}$	Sol not precipitated
$7 \times 10^{-5}$	Sol precipitated
$8 \times 10^{-5}$	Sol precipitated
$1 \times 10^{-4}$	Sol precipitated

Similar Questions

Tyndall effect is more pronounced in

What is the decreasing order of coagulating power of ions for an arsenious sulphide sol based on their charge?

Explain the cleansing action of soaps.

All colloidal dispersions have

How does the precipitation of colloidal smoke take place in a Cottrell precipitator?

Vedclass Test Series

Exam Paper Generator

Online Exam Module