For which of the following is the van't hoff factor 2, assuming complete dissociation?

a)
calcium phosphate

b)
aluminum chloride

c)
calcium chloride

d)
sodium chloride

d) Sodium Chloride

Explanation:

The correct answer is option (d) sodium chloride. Generally, the van't Hoff factor is determined from the complete dissociation of the substance. It is calculated as the total number of ions present in the solution per unit of the substance formula. Therefore, for calcium phosphate, the factor is 5, for aluminum chloride, it is 4, for calcium chloride, it is 3 while for sodium chloride, it is 2.

the right answer is c i just did the question.