Question

1. Which of the following is not a colligative property? explain

a) freezing-point lowering

b) boiling-point elevation

c) solute solubility

d) osmotic pressure

e) vapor-pressure lowering

2.

If 12.9 g of naphthalene, C10H8, is dissolved in 115.6 g of chloroform, CHCl3, what is the molality of the solution? explain

a) 0.101 m

b) 0.104 m

c) 0.872 m

d) 13.3 m

e) 0.100 m

3.

The molality of a solution is the _ (explain)

a) moles of solute per liter of solvent.

b) moles of solute per kilogram of solution.

c) moles of solute per liter of solution.

d) moles of solute per kilogram of solvent.

e) moles of solute per mole of solution.

4. What is the molarity of a 40.0% by mass hydrochloric acid solution? The density of the solution is 1.1980 g/mL. Explain

a) 18.3 M

b) 13.1 M

c) 0.0479 M

d) 0.400 M

e) 13.9 M

Answer 1