Exam 7: Solutions and Colloids

A solution is prepared at 75 °C by dissolving 50.0 g of A in 100 g of water.When this solution is cooled to 15 °C what happens based on the following solubility plot for A.

Oil should be a good solvent for polar compounds.

Which of the following correctly arranges 1.00 M solutions of the strong electrolytes in order of increasing boiling point (lowest to highest)?

When preparing an aqueous solution of a salt,one must always be able to observe some undissolved material to be sure that it is saturated.

A solution is made by dissolving 15.0 mL of oil in enough gasoline to give 50.0 mL of solution.What is the % (v/v)of oil in the solution?

The cleaning action of soaps and detergents is attributable to

What is the underlying process involved in dialysis?

Ionic compounds are generally insoluble in non-polar solvents.

A 0.9% NaCl (w/w)solution in water is

Dialysis and osmosis are used for the same purposes.

A solution is prepared at 75 °C by dissolving 50.0 g of A in 100 g of water.Which of the following correctly classifies this solution based on the solubility chart for A given below?

When solid NaOH is dissolved in water,the solution becomes hot.The solution process is

During a surgical procedure,a wound was accidentally irrigated with deionized water,instead of normal saline.What would one expect to happen?

All ionic compounds are soluble in water.

What is the molarity of a solution containing 0.325 moles of solute in 250 mL of solution?

Drinking water can be purified by which of the following methods?

Two solutions with concentrations of 2% sugar and 4% sugar,respectively,are separated by a semipermeable membrane.During osmosis,there is a net flow of

An isotonic salt solution is 0.90% (w/w)NaCl in water.How many grams of NaCl are contained in 1.00 kg of such a solution?

A solution is made by dissolving a small amount of salt in a beaker of water.The water is referred to as the

A solution is prepared by adding 25.0 mL of 1.30 M AlCl₃ solution to a flask,and then adding enough water to give a final volume of 200.0 mL.What is the molarity of the solution?