Acids and Bases

Guiding Questions What is an acid? What makes acids dangerous? Is acid rain an issue for us? What does pH balanced mean?

Table of Contents ‘Acids, Bases, and Salts’ Definitions pH Scale Acid Rain Common Acids Common Bases LeChatelier’s Principle Maintaining Blood pH Conjugate Acid-Base Pairs pKa Concentration vs. Strength pH Indicators Buffers Titration Swimming Pools

Acids, Bases, and Salts You should be able to  Understand the acid-base theories of Arrhenius, Brønsted-Lowry, and Lewis.  Identify strong acids and bases and calculate their pH’s.  Calculate the pH of a weak acid or base.  Calculate the concentration of a strong or weak acid or base from its pH.  Calculate the pH and ion concentration in a polyprotic acid.  Predict the pH of a salt from its formula and then calculate the pH of the salt.  Be familiar with titration curves and selection of an acid-base indicator.

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Episode 16Episode 16 – The Proton in Chemistry VIDEO ON DEMAND Acids and bases play an important role in our lives, but are sometimes safe and sometimes dangerous. Demonstrations explain pH and how it is measured. World of Chemistry The Annenberg Film Series