Question

Match the following aqueous solutions with the appropriate letter from the column on the right.

1. 0.14 m FeI2 A. Highest boiling point

2. 0.13 m CaCl2 B. Second highest boiling point

3. 0.11 m Ca(CH3COO)2 C. Third highest boiling point

4. 0.36 m Glucose(nonelectrolyte) D. Lowest boiling point

Answer 1

1. 0.14 m FeI2-----------> A. Highest boiling point   

2. 0.13 m CaCl2 ----------------> B. Second highest boiling point

3. 0.11 m Ca(CH3COO)2 ----------------> D. Lowest boiling

4. 0.36 m Glucose(nonelectrolyte) ---------------> C. Third highest boiling point

explanation:   

for FeI2 (i = 3) = 0.14 x 3 = 0.42 m

for CaCl2 (i = 3) = 0.13 x 3 = 0.39 m

for Ca(CH3COO)2 (i = 3)   = 0.11 x 3 = 0.33

for gluocse (i = 1)           = 1 x 0.36 m

highest value will have highest boilining point because : Tb = i x kb x m

m value more Tb more , if Tb more Tb more