Question

Arrange the following aqueous solutionsin order of increasing freezing points, lowest tohighest.
0.050 m Ca(NO₃)₂
0.100 m ethanol (CH₃CH₂OH)
0.050 m HCl
0.100 m NaBr

a. T_f(0.050 mCa(NO₃)₂) < T_f(0.050 m HCl) =T_f(0.100 m NaBr) < T_f(0.100 methanol)

b. T_f(0.100 m ethanol) =T_f(0.100 m NaBr) < T_f(0.050 mCa(NO₃)₂) = T_f(0.050 mHCl)

c. T_f(0.100 mNaBr) < T_f(0.050 m Ca(NO₃)₂)< T_f(0.050 m HCl) = T_f(0.100 methanol)

d. T_f(0.100 mNaBr) < T_f(0.050 m HCl) = T_f(0.050 mCa(NO₃)₂) = T_f(0.100 methanol)