UP:SC15.PS.4

Vocabulary

  • Acid
  • Base
  • Indicator
  • pH
  • Arrhenius theory
  • Strong acid/base
  • Weak acid/base
  • Neutralization
  • Titration

Knowledge

Students know:
  • An acid may be strong or weak, depending on its reaction with water to produce ions.
  • When an acid dissolves in water, a proton (hydrogen ion) is transferred to a water molecule and produces a hydronium ion.
  • A base may be strong or weak, depending on the number of hydroxide ions readily produced in solution.

Skills

Students are able to:
  • Recognize common inorganic acids including hydrochloric (muriatic) acid, sulfuric acid, acetic acid, nitric acid and citric acid.
  • Recognize common bases including sodium bicarbonate, and hydroxides of sodium, potassium, calcium, magnesium, barium and ammonium.
  • Use the pH scale to measure acidity or basicity.

Understanding

Students understand that:
  • Acids are compounds that contain hydrogen and can dissolve in water to release hydrogen ions in solution.
  • Bases are substances that dissolve in water to release hydroxide ions (OH-) into solution.
  • The neutralization of an acid with a base produces water and a salt.

Scientific and Engineering Practices

Analyzing and Interpreting Data

Crosscutting Concepts

Patterns
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