Question

Coagulating value of the electrolytes AlCl₃ and NaCl for As₂S₃ are 0.09 and 50.04 respectively. The coagulating power of AlCl₃ is x times the coagulating power of NaCl. The value of x is ______ .

Hint:

Coagulating power is inversely proportional to coagulating value, and higher charge density of ions increases coagulating efficiency

Answer 1

Correct Answer: 556

Coagulating Power of Electrolytes:

The coagulating power of an electrolyte is inversely proportional to its coagulating value:

Coagulating power ∝ \(\frac{1}{\text{Coagulating value}}\)

For AlCl₃ and NaCl:

The ratio of their coagulating powers is given by:

\(\frac{\text{Coagulating power of AlCl}_3}{\text{Coagulating power of NaCl}} = \frac{\text{Coagulating value of NaCl}}{\text{Coagulating value of AlCl}_3}\)

Substitute the Given Values:

\(\frac{\text{Coagulating power of AlCl}_3}{\text{Coagulating power of NaCl}} = \frac{50.04}{0.09}\)

Simplify:

\(x = \frac{50.04}{0.09} = 556\)

Conclusion:

The coagulating power of AlCl₃ is 556 times that of NaCl.