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
