CHEM 112 Study Guide - Quiz Guide: Conjugate Acid, Attractor, Covalent Bond

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Published on 12 Jul 2019
School
Queen's University
Department
Chemistry
Course
CHEM 112
Professor
Acids and bases are both electrolytessolutions that conduct electricity-- > contain ions.
--- both acids and bases = corrosive!
Acids : sour taste, feel like water.
Bases: bitter taste, feel slippery to the touch
Large acid and base spills need to be neutralized.
EXAMPLES OF ACIDS & BASES IN THE HOUSEHOLD
Vinegar = dilute/ low-concentration solution of acetic acid.
Citrus fruits contain citric acid and ascorbic acid, or vitamin C
Cola drinks and rust removers both contain phosphoric acid
Pain relievers may contain acetylsalicylic acid (ASA).
Cleaning products often contain bases like Ammonia.
Previously, acids have been defined as having H+ ions in solution, and bases as having OH-
ions in solution→ BUT there are many substances that are classified as bases, but don’t contain
the OH-.
THEREFORE, there is the Brønsted-Lowry theory. According to this theory:
An acid is a proton donor.
A base is a proton acceptor, absorber, or attractor (the best term) :))
CONJUGATE PAIRS
According to the Brønsted-Lowry theory, two pairs (or conjugates) can be identified.
The acid in the reactants has a conjugate base in the products.
The base in the reactants has a conjugate acid in the products.
These are known as conjugate acidbase pairs.
An acid has at least one proton (H+) more than its base partner.
Large Ka values = strong acid!
Strong and Weak Acids and Bases
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