Student Learning Map

  • Topic:10- Solutions
  • Subject(s):Science
  • Days:20
  • Grade(s):10
Key Learning: A solution is a stable homogeneous mixture.
Unit Essential Question(s):
 
 

How are the properties of a solution related to its concentration?
   
Concept:

Solutions and Solubility

Identify the components of a solution (solute, solvent, solution).

Identify factors that affect the rate of solubility.

Differential between the terms unsaturated, saturated, supersaturated.

Identify a compound in solution as an electrolyte or nonelectrolyte.
Concept: Concentration

Express solution concentration in terms of molarity.

Use molarity to prepare solutions.

Express solution concentration in terms of molality.
Concept: Colligative Properties

Solve colligative property problems.

Suggested Extended Thinking Strategies: Compare/Contrast or Inductive Reasoning
Lesson Essential Question(s):

How do solutes and solvents interact to form solutions?

 (A)

How do experimental conditions impact solubility?

 (A)

How can compounds be classified as electrolyes or nonelectrolytes?

 (A)

Lesson Essential Question(s):

What are the differences between qualitative and quantitative concentrations?

 (A)

How is molarity useful in preparing solutions?

 (A)

Lesson Essential Question(s):

How do properties of a solution differ from the properties of a solvent?

 (ET)

How does concentration of solute particles impact colligative properties?

 (A)

How is molality useful in preparing solutions?

 (A)

Vocabulary:

solute, solvent, suspension, *mixture, *solution, electrolyte, nonelectrolyte, miscible, immiscible, solubility, solubility curve

Vocabulary:

molality, molarity, saturated solution, supersaturated, unsaturated solution, *concentration

Vocabulary:

boiling point elevation, colligative properties, freezing point depression

Additional Info:

The asterisk (*) next to the vocabulary terms above indicates essential FCAT vocabulary. Holt Modern Chemistry textbook, ancillary materials and resource attachment(s)

Resources:

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Student Learning Map of Unit
Vocabulary Report

Acquisition Lesson(s):

1. How do experimental conditions impact solubility?2. How can compounds be classified as electrolyes or nonelectrolytes?3. How is molality useful in preparing solutions?

Extended Thinking Lesson(s):

1. How do properties of a solution differ from the properties of a solvent?

Vocabulary Report

  • boiling point elevation -

    the difference between the boiling point of a liquid in pure state and the boiling point of the liquid in solution; the increase depends on the amount of solute particles present

  • colligative properties -

    a property that is determined by the number of paticles present in a system but that is independent of the properties of the particles themselves

  • solute -

    in a solution, the substance that dissolves in the solvent

  • freezing point depression -

    the difference between the freezing points of a pure solvent and a solution, which is directly proportional to the amount of solute present

  • molality -

    the concentration of a solution expressed in moles of solute per kilogram of solvent

  • solvent -

    in a solution, the substance in which the solute dissolves

  • suspension -

    a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas

  • molarity -

    a concentration unit of a solution expressed as moles of solute dissolved per liter of solution

  • *mixture -

    a combination of two or more substances that are not chemical combined

  • *solution -

    a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase

  • electrolyte -

    a substance that dissolves in water to give a solution that conducts an electric current

  • saturated solution -

    a solution that cannot dissolve any more solute under the given conditions

  • supersaturated -

    a solution that holds more dissolved solute than is required to reach equilibrium at a given temperature

  • nonelectrolyte -

    a liquid or solid substance or mixture that does not allow an electric current

  • unsaturated solution -

    a solution that contains less solute than a saturated solution does and that is able to dissolve additional solute

  • miscible -

    describes two or more liquids that can dissolve into each other in various proportions

  • immiscible -

    describes two or more liquids that do not mix with each other

  • *concentration -

    the amount of paticular substance in a given quantity of a mixture, solution or ore

  • solubility -

    the ability of one substance to dissolve in another at a given temperature and pressure; expressed in terms of the amount of solute that will dissolve in a given amount of solvent to produce a saturated solution

  • solubility curve -

    graphic representation that shows the amount of solute dissolved in a given amount of solvent at specific temperatures