Correct Answer - am=17.95,b.M=9.1
Mw
of ethylene glycol =62g
a.
m=
W2×1000
Mw2×W1
=
222.6×1000
62×200
=17.95molKg-1
b.
Weight of solution =222.6+200=422.6g
dsol=1.072gmL-1
Volume of solution =
422.6
1.072
=394.21mL
M=
W2×1000
Mw2×Vsol
=
222.6×1000
62×394.21
=9.1M