100 ml of collidal solution is completely precipitated by addition of 5 ml of 1 M NaCl solution - Chemistry - Surface Chemistry

Question

100 ml of collidal solution is completely precipitated by addition
of 5 ml of 1 M NaCl solution calculate coagulation value of NaCl

Selvan · Answer

Cogulation value is the millimoles of an electrolyte that must be
added to 1 L of a colloidal solution for complete coagulation
Therefore , 5 mL of 1 M Nacl = (1/1000)*5=0 005 or 5m moles 100 mL
of a colloidal solution require Nacl for complete coagulation = 50
m moles Therefore , Coagulation value of Nacl = 50 tion value of
Nacl = 50

100 ml of collidal solution is completely precipitated by addition of 5 ml of 1 M NaCl solution . calculate coagulation value of NaCl.