Chapter 8: Solutions

Which of the following combinations of solutes and solvents could result in a solution? - H2O and hexane - H2O and Na2SO4 - Ethanol and H2O - Hexane and ethane

- H2O and Na2SO4 - Ethanol and H2O - Hexane and ethane

Use the solubility rules to predict which one of the following compounds is soluble in water. - Ca(NO3)2 - CaCO3 - Ca(OH)2

Ca(NO3)2

Characterize each mixture as a solution, colloid, suspension. Whipped cream: - Solution - Colloid - Suspension

Colloid

Match each mixture given with its correct definition. Fog: - Suspension - Solution - Colloid

Colloid

Which property given below is characteristic of all solutions? - Homogeneous - Transparent - Heterogeneous

Homogeneous

An aqueous solution contains 050% (w/v) acetic acid. How many grams of acetic acid are contained in 100mL of this solution? - 5.0g - 50g - 0.50g

0.50g

A saline solution contains 0.92% (w/v) sodium chloride in water. How many grams of sodium chloride are contained in 500 mL of this solution? - 0.18 g NaCl - 0.92 g NaCl - 4.6 g NaCl

4.6 g NaCl

Suspension: - A homogeneous mixture that contains large particles - A heterogeneous mixture of large particles in a liquid

A heterogeneous mixture of large particles in a liquid

Colloid: - A homogeneous mixture that contains large particles - A heterogeneous mixture of large particles in a liquid

A homogeneous mixture that contains large particles

Classify each substance as a nonelectrolyte, weak electrolyte, or strong electrolyte. Glucose: - Nonelectrolyte - Weak electrolyte - Strong electrolyte

Nonelectrolyte

Characterize each mixture as a solution, colloid, suspension. Vitamin water: - Solution - Colloid - Suspension

Solution

Match each mixture given with its correct definition. Grape juice: - Suspension - Solution - Colloid

Solution

Classify each substance as a nonelectrolyte, weak electrolyte, or strong electrolyte. NaOH: - Nonelectrolyte - Weak electrolyte - Strong electrolyte

Strong electrolyte

Characterize each mixture as a solution, colloid, suspension. Salad dressing: - Solution - Colloid - Suspension

Suspension

Match each mixture given with its correct definition. Juice with pulp: - Suspension - Solution - Colloid

Suspension

Classify each substance as a nonelectrolyte, weak electrolyte, or strong electrolyte. HF: - Nonelectrolyte - Weak electrolyte - Strong electrolyte

Weak electrolyte

The solubility of gases in liquids _________ with increasing temperature.

decreases

Osmotic pressure is the pressure that prevents the flow of additional _________ into a solution on one side of a semipermeable membrane.

solvent

A substance that dissociates or ionizes completely in aqueous solution is known as a(n)_________ electrolyte.

strong

Select the statements that correctly describe the effect of temperature or pressure changes on solubility - Increasing the temperature from 20C to 50C will increase the solubility of oxygen gas (O2). - Increasing the temperature from 20C to 50C will increase the solubility of solid sodium carbonate (Na2CO3). - Decreasing the pressure from 2 atm to 1 atm will increase the solubility of ethanol (CH3CH2OH) - Increasing the pressure from 1 atm to 4 atm will increase the solubility of nitrogen gas (N

- Increasing the temperature from 20C to 50C will increase the solubility of solid sodium carbonate (Na2CO3). - Increasing the pressure from 1 atm to 4 atm will increase the solubility of nitrogen gas (N2)

Select all the statements that support the conclusion that a mixture of ethanol and water is a solution: - It is composed of two substances - It is colorless - The components can be separated by filtration - It is uniform throughout

- It is composed of two substances - It is uniform throughout

Which of the following substances are soluble in water? - Methanol - Vitamin A - Hexane - KCl

- Methanol - KCl

Use the solubility rules to predict which ionic compounds are water-soluble. - Na2CO3 - Fe(OH)3 - NH4Cl - AgNO3 - BaSO4

- Na2CO3 - NH4Cl - AgNO3

Select the statements that describe that result when a nonvolatile solute is dissolved in a liquid solvent. - The boiling point of the solution is higher than the boiling point of pure solvent - The amount that the boiling point increases is dependent only on the concentration of dissolved particles - The boiling point of the solution is lower than that of pure solvent - The amount that the boiling point increases is dependent on the identity of the solute

- The boiling point of the solution is higher than the boiling point of pure solvent - The amount that the boiling point increases is dependent only on the concentration of dissolved particles

Select all of the statements that correctly describe osmotic pressure. - The greater the number of solute particles, the greater the osmotic pressure will be. -Osmotic pressure is dependent on the identity of the solute particles. - Osmotic pressure depends on the number of solute particles in the solution - The greater the number of solvent molecules, the greater the osmotic pressure will be.

- The greater the number of solute particles, the greater the osmotic pressure will be - Osmotic pressure depends on the number of solute particles in the solution