Chemistry Unit 8

Big Idea:

Solutions and the unique chemical and biological properties of water.

Student Expectations:

Priority TEKS

C.10(A) describe the unique role of water in solutions in terms of polarity

C.10(E) distinguish among types of solutions such as electrolytes and nonelectrolytes, unsaturated, saturated, and supersaturated solutions; and strong and weak acids and bases

Focus TEKS

C.10(B) apply the general rules regarding solubility through investigations with aqueous solutions.

C.10(C) calculate the concentration of solutions in units of molarity.

C.10(D) calculate the dilutions of solutions using molarity.

C.10(F) investigate factors that influence solid and gas solubilities and rates of dissolution such as temperature, agitation, and surface area.

Ongoing TEKS

C.7(A) name ionic compounds containing main group or transition metals, covalent compounds, acids, and bases, using International Union of Pure and Applied Chemistry (IUPAC) nomenclature rules.

C.7(B) write the chemical formulas of ionic compounds containing representative elements, transition metals and common polyatomic ions, covalent compounds, and acids, bases.

C.8(A) define and use the concept of a mole.

C.8(B) calculate the number of atoms or molecules in a sample of material using Avogadro's number.

C.8(G) perform stoichiometric calculations, including determination of mass and gas volume relationships between reactants and products and percent yield.

Student Learning Targets:

• I will describe the process of solution formation.
• I will distinguish between unsaturated, saturated and supersaturated solutions
• I will explain the factors that affect solubility
• I will define a colloid.
• I will calculate the concentration of a solution
• I will perform dilution calculations using the equation M1V1 = M2V2
• I will identify the general properties of aqueous solutions.
• I will calculate moles, volume, or grams of a substance using molarity.
• I will prepare a solution with a known concentration.
• I will carry out a dilution to achieve a desired solution concentration.
• I will identify strong, weak and nonelectrolytes.
• I will list the ions present in a dissolved ionic compound.

Essential Questions:

• What properties give water a unique role in chemical and biological systems?
• In what ways can the properties of a solution be described and calculated?
• What are the general rules regarding solubility?
• In what ways can the rate of dissolution be affected?

Extra Information:

Adopted Textbook: Chemistry, Pearson

District Grading Policy

Texas Gateway Online Resource Center