Unit 6 Test Review

Compared to pure water, a solution of salt water will have

• a lower boiling point and lower freezing point.

• a higher boiling and higher freezing point

• a lower boiling point and higher freezing point

• a higher boiling point and lower freezing point

Which is the correct dissociation equation for calcium fluoride?

Which aqueous solution will have the highest freezing point?

• 1M NaCl

• 2M NaCl

• 1M CaCl₂

• 2M CaCl₂

How many total moles of KNO₃ must be dissolved in water to make 1.5 L of a 2M solution?

• 0.5 mol

• 2.0 mol

• 3.0 mol

• 1.3 mol

Molarity is defined as the

• moles of solute per kilogram of solvent

• moles of solute per liter of solution

• mass of a solution

• volume of a solvent

What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution?

• 1M

• 2M

• 0.04 M

• 0.5 M

Which unit can be used to express solution concentration?

• J/mol

• L/mol

• mol/L

• mol/s

What is the total number of grams of HI in 0.500 liter of 1.00 M HI?

• 1.00 g

• 0.500 g

• 64.0 g

• 128 g

Which solution is the most concentrated?

• 1 mole of solute dissolved in 1 liter of solution

• 2 moles of solute dissolved in 3 liters of solution

• 6 moles of solute dissolved in 4 liters of solution

• 4 moles of solute dissolved in 8 liters of solution

What is the concentration of AgCl in an aqueous solution that contains 1.2 10^-3 gram of AgCl in 800. grams of the solution?

• 1.2 ppm

• 1.5 ppm

• 7.2 ppm

• 9.6 ppm