Chapter 19 Notes: Part I
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Acids and Bases. Chapter 19 Notes: Part I. What are some common acids?. Vinegar (acetic acid) Carbonated drinks (carbonic and phosphoric acid) Citrus fruits (citric acid) Car battery (sulfuric acid). What are some common bases?.
Chapter 19 Notes: Part I
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Acids and Bases Chapter 19 Notes: Part I
What are some common acids? • Vinegar (acetic acid) • Carbonated drinks (carbonic and phosphoric acid) • Citrus fruits (citric acid) • Car battery (sulfuric acid)
What are some common bases? • Milk of magnesia (an antacid containing magnesium hydroxide) • Many cleaning products (ammonia, etc)
What properties do acids have? Acids tend to be: • Tart or sour tasting • Electrolytes (in solution) • React to certain metals to produce hydrogen gas • They can cause chemical dyes (called indicators) to change colors
What properties do bases have? Bases tend to be: • Bitter tasting • Slippery feeling when touched • Able to neutralize an acid • Also electrolytes (in solution)
What is an acid? • An acid is a compound that produces hydrogen ions (H+) when dissolved in water. • The formula would be HaX, where X is any monatomic or polyatomic anion and a is the anion’s charge.
Naming an Acid • When the name of the anion (X) ends in –ide, • the name begins with hydro-, • then the stem of the anion, • then the name ends with –ic acid instead of -ide. • ex) HCl is hydrochloric acid
Naming an Acid • When the name of the ion ends in –ate, • then the name would be the stem of the anion and the suffix –ic acid instead of-ate. • H2SO4 is sulfuric acid
Naming an Acid • When the name of the ion ends in –ite, • then the name would be the stem of the anion and the suffix –ous acid instead of –ite. • H2SO3 is sulfurous acid
Naming an Acid Negative ion:Acid Name: _____ idehydro___ic acid _____ ate _____ic acid _____ ite _____ous acid ex) H3P , H3PO4 , H3PO3
What is a base? • A base is a compound that produces hydroxide (OH-) ions when in solution. • Bases are named the same way that an ionic compound would be named. • NaOH is Sodium Hydroxide
Name the following acids and bases: • chloric acid • phosphoric acid • hydrofluoric acid • nitric acid • potassium hydroxide • barium hydroxide • phosphorous acid • HClO3 • H3PO4 • HF • HNO3 • KOH • Ba(OH)2 • H3PO3
Write the formula for the following: • HI • Ca(OH)2 • HNO2 • NH4OH • HNO3 • HBr • H3PO4 • hydroiodic acid • calcium hydroxide • nitrous acid • ammonium hydroxide • nitric acid • hydrobromic acid • phosphoric acid