L17 - Lecture 17 Heartburn: Acids and Bases Key Idea: Acids...

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Heartburn: Acids and Bases Key Idea: Acids increase the H+ concentration in aqueous solutions and bases decrease it. Cabbage Juice NaOH drain cleaner (aq) C 6 H 8 O 7 lemon juice Na 2 CO 3 washing soda (aq) HCl stomach acid (aq) H 2 O distilled water NH 4 OH ammonium hydroxide (aq) C 3 H 8 O rubbing alcohol C 2 H 4 O 2 vinegar (aq) NaCl table salt (aq) Indicator Number Universal Indicator Color Cabbage Juice Color Formula Substance Sort the substances into three groups. Indicators Indicators respond to changes in [H 3 O + ] measured by pH = -log [H 3 O + ]. Where would you place soap? Place the compounds on a line with the universal indicator number. pH Scale What do acids have in common? Properties of Acids lactic acid C 3 H 6 O 3 phosphoric acid H 3 PO 4 acetic acid CH 3 COOH formic acid CHOOH hydrochloric acid HCl citric acid C 6 H 8 O 7 sulfuric acid H 2 SO 4 Do you expect HCl (aq) to conduct electricity? Explain your thinking.
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This note was uploaded on 04/03/2008 for the course CHEM 1A taught by Professor Nitsche during the Fall '08 term at Berkeley.

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L17 - Lecture 17 Heartburn: Acids and Bases Key Idea: Acids...

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