Question

1.Which compound is the most soluble in water?

A. CH3CH2CH2CH2CH2OH B. CH3CH2CH2CH2OH

C. CH3CH2CH2CH2CH2CH2CH2OH D. CH3CH2CH2OH

E. All of these compounds are equally soluble in water.

2. Which of these compounds is a strong electrolyte?

A. H2O B. O2 C. H2SO4 D. C6H12O6 (glucose) E. CH3COOH (acetic acid)

3. Hexachlorophene is used as a disinfectant in germicidal soaps. What mass of hexachlorophene (406.9 g/mol) must be added to 125 g of chloroform to give a solution with a boiling point of 62.60°C? (For chloroform, Kb = 3.63°C/m; boiling point of pure chloroform = 61.20°C)

A. 19.6 g B. 17.2 g C. 40.7 g D. 50.9 g E. 157 g

4. If a molecule at the surface of a liquid has enough kinetic energy to escape the liquid phase and enter the gas phase, then which of the following terms is used to describe this phenomenon? A. Boiling point B. Condensation C. Vaporization D. Sublimation E. Gasification

5.

4. For the reaction A(g)2B(g)2C(g) + 2D(g) the following data were collected at constant temperature. Determine the correct rate law for this reaction Initial Initial Initial Rate Trial IA] BI (mol/L) (mol/L) (mol/L« min) 1 0.125 0.200 7.25 2 0.375 0.200 21.75 3 0.250 0.400 14.50 4 0.375 0.400 21.75 A. Rate k[A][B] B. Rate k[A]2[B] C. Rate k[A][B]2 D. Rate k[A] E. Rate k[A]3 =