The coagulating power of an electrolyte is inversely proportional to its coagulating value. That is,
Coagulating power=Coagulating value1
Therefore, the coagulating power of AlCl₃ is
0.091
and the coagulating power of NaCl is
50.041
We are asked to find the factor by which the coagulating power of AlCl₃ is greater than the coagulating power of NaCl. This factor is given by the ratio
x=Coagulating power of NaClCoagulating power of AlCl₃=50.0410.091=0.0950.04
x=0.0950.04≈556.22
So, the coagulating power of AlCl₃ is approximately 556 times the coagulating power of NaCl.
However, since the problem asks for the nearest integer, the answer would be 556.