It is given the solution of NaCl and urea are isotonic. Therefore, i×CRT(NaCl)=CRT( urea ) Here, the concentration is C, Van't Hoff factor is i gas constant is R and the temperature is T ∴i×C(NaCl)=C( urea ) i×
0.1
1L
=
wB
mB
×
1000
V
i=
1.1
60
×
1000
100
×
1
0.1
=1.83 For ionsiation, i=1−α+nα Here, the degree of dissociation is α and the number of particles is n The number of particle for NaCl is 2 Thus, 1.83=1+α α=0.83
