A 0.10 M solution of a mono protic acid (`d=1.01g//cm^(3)`) is 5% dissociated what is the freezing point of the solution the molar mass of the acid is 300 and `K_(f)(H_(2)O)=1.86C//m`
A. `-0.189^(@)C`
B. `-0.194^(@)C`
C. `-0.199^(@)C`
D. none of these