Van't Hoff factor for Ca(NO3)2 on 100% dissociation.
2.0
1.5
3.0
1.0
Calcium nitrate on dissociation gives 2 moles of nitrate ions and one mole of calcium ions so the total number of moles of ions is 2+1=3.0
Considering complete ionization, Van't Hoff factor of Ca(NO3)2 is:
van't Hoff factor for 1M ideal solution is