At a given dilution, the van't Hoff factor i for complete dissociation approaches which value for K2SO4 in water?

1. K2SO4 dissociates as $K_2SO_4 \rightarrow 2K^+ + SO_4^{2-}$, giving 3 ions per formula unit. 2. For complete dissociation, i equals the number of particles produced. 3. Hence i approaches 3 (compared with 2 for NaCl, KCl and MgSO4). _Source: syllabus Chemistry Ch 1 "Solutions", p.24_