no of moles of NaOH = molarity * volume in L
                                 Â
= 0.1*0.002Â Â = 0.0002 moles
  NaOH ----------> Na+ +
OH-
                                      Â
0.0002 moles
     [OH-]  = no of
moles/volume in L
               Â
= 0.0002/1.002Â Â = 0.0002M
no of moles of CaCl2 = molarity * volume in L
                                   Â
= 0.8*1 = 0.8moles
CaCl2 -------------> Ca+2 + 2Cl-
0.8
moles              Â
0.8 moles
[Ca+2]Â Â = no of moles/volume in L
           Â
= 0.8/1.002Â Â = 0.798 M
Qsp = [Ca+2][OH-]2
         =
0.798*(0.0002)2 = 3.2*10-8
ksp of Ca(OH)2 = 5.02*10-8
Ksp>Qsp will not form precipitate
Precipitation will not occur.