AP Chemistry

Standard(s):

8.1 Introduction to Acids and Bases

SAP-9.A: Calculate the values of pH and pOH, based on Ka and the concentration of all species present in a neutral solution of water.

8.2 pH and pOH of Strong Acids and Bases

SAP-9.B: Calculate pH and pOH based on concentrations of all species in a solution of a strong acid or a strong base.

8.3 Weak Acid and Base Equilibria

SAP-9.C: Explain the relationship among pH, pOH, and concentrations of all species in a solution of a monoprotic weak acid or weak base.

8.4 Acid-Base Reactions and Buffers

SAP-9.D: Explain the relationship among the concentrations of major species in a mixture of weak and strong acids and bases.

8.5 Acid-Base Titrations

SAP-9.E: Explain results from a titration of a mono- or polyprotic acid or base solution, in relation to the properties of the solution and its components.

8.6 Molecular Structure of Acids and Bases

SAP-9.F: Explain the relationship between the strength of an acid or base and the structure of the molecule or ion.

8.7 pH and pKa

SAP-10.A: Explain the relationship between the predominant form of a weak acid or base in solution at a given pH and the pKa of the conjugate acid or the pKb of the conjugate base.

8.8 Properties of Buffers

SAP-10.B: Explain the relationship between the ability of a buffer to stabilize pH and the reactions that occur when an acid or a base is added to a buffered solution.

8.9 Henderson-Hasselbalch Equation

SAP-10.C: Identify the pH of a buffer solution based on the identity and concentrations of the conjugate acid-base pair used to create the buffer.

8.10 Buffer Capacity

SAP-10.D: Explain the relationship between the buffer capacity of a solution and the relative concentrations of the conjugate acid and conjugate base components of the solution.

Learning Target:

I can understand Equilibrium relates to acids and bases.

I can understand how the equivalence point is shown in a titration reaction and what that means for the math. 

I can complete a virtual lab dedicated to the topic of titrations and how to do calculations associated with acid-base equilibrium.

Success Criteria:

I can learn about how a titration lab works through a Virtual Lab experience.

I can calculations associated with acid-base equilibrium with weak acids and/or weak bases, pH, and Ka and Kb.

Instructional Strategies:

Opening (I do):  Pirate Prep - log into computers

Work Session (explain clearly the We Do and You Do portions):

     We Do:  

1. Virtual Lab on "Titration" on free grant website Labster.

     You Do:

1. Watch BozemanScience video on "Free Energy and Equilibrium Constant"
2. Watch EdPuzzle video on "Titration"
3. Go to AP Classroom to work on some practice questions.

Closing (We Check):

1. Continue your work on Unit #8 Suggested Reading and ECQ schedule.

Differentiation Strategies:

Individual work on webquest, video clips, and practice problems at their own pace.

Formative/Summative

Assessment(s): (We Check)

Completing the lab safely is formative. 

Completing the book problems, lab write-up, and future unit test will be summative.

Assignment(s):

1. Continue work on Unit #8 content...following Suggested Reading and ECQ schedule.
2. Lab notebooks due next Monday, December 7th.