Working with Acids and Bases. An Introduction
This course provides a comprehensive understanding of acids and bases in aqueous solutions, covering definitions, chemical equations, conjugate pairs, autoionization, and equilibrium constants. It focuses on pH and pOH scales, logarithmic nature, and calculations of hydronium and hydroxide concentrations. Suitable for high school and college chemistry students.
What you’ll learn
- Understand the nature of acids and bases in aqueous solutions and define each.
- Differentiate between weak and strong acids/bases using chemical equations
- Identify acid/base conjugate pairs and write chemical equations with conjugate pairs
- Define autoionization and write autoionization equations for various compounds
- Write and use Ka, Kb, and Kw. Understand the relationship between the chemical equation and the mathematical equation..
- Use the pH and pOH scale for identifying acids and bases while also understanding the logarithmic nature of the scale.
- Calculate pH, pOH, concentration of hydronium, and concentration of hydroxide.
- Calculate pH or pOH for either a strong or weak acid or base in aqueous solution.
- Calculate Ka or Kb of a weak acid or base given initial concentration and pH.
- Write a step-wise dissociation of a polyprotic acid and calculate pH of a polyprotic acid given an initial concentration.
The course focuses on the nature acids and bases in aqueous solutions. We first cover the definitions of acids and bases in aqueous solutions. We will then discuss various polyprotic acids and how to identify them. Using chemical equations, we will define the difference between strong and weak acids/bases. We will identify conjugate acid/base pairs in chemical equations as well as autoionization. We will derive equilibrium constants for weak acids and bases and discuss the mathematical nature of the pH/pOH scales. Calculations start with simple determination of pH, pOH and concentrations of hydronium and hydroxide ions. We will them move onto calculations with strong acids and bases in aqueous solution, including calculating how many grams must be dissolved in a set amount of solution to give a specific pH. After a good understanding of strong acids and bases is established, we will work with weak acids and bases in equilibrium. We will learn how to construct and use an ICE (initial, consumed, equilibrium) table to determine the pH of a weak acid or base. Finally, we will calculate the final pH of weak polyprotic acid solutions using multiple ICE tables and equilibrium constants. We will not cover neutralization reactions in this course.
Who this course is for:
- High School Chemistry Students, including IB and AP students
- College Students Taking or Reviewing General Chemistry
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