Chapter 14

Chapter 14 - [5M] Chapter 14 - Acids and Bases Monday,...

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acid : something that produces H + ions in aqueous solution base : produces OH- ions in aqueous solution 1859-1927 s Swedish chemist s Nobel Prize 1903 s Svante Arrhenius Arrhenius Concept acid : proton (H + ) donor base : proton(H + ) acceptor 1879-1947 s Danish chemist s Johannes Bronsted 1874-1936 s English chemist s Thomas Lowry Bronsted-Lowry Definition Acid Dissociation We have an equilibrium situation: strong acids : weak acids : pretty much any other acid The higher the K a , the stronger the acid H 2 CO 3 or H 2 SO 4 s HCl or HF s HF or NH 4 + s ex] Which acid in each of the following pairs has the stronger conjugate base? Acid Strength Chapter 15 - Acids and Bases [5M] Chapter 14 - Acids and Bases Monday, February 11, 2008 10:07 AM Chapter 14
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ex] H 3 PO 4 , H 2 SO 4 , H 2 CO 3 s (dissociates in steps) s polyprotic : has more than one acidic proton oxyacid : contain oxygen and the acidic proton or protons are attached to the oxygens Different Types of Acids organic : contain the COOH group amphoteric : can behave as an acid or as a base autoionization : can ionize itself
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This note was uploaded on 08/21/2008 for the course CHEM 105BL taught by Professor Warshel during the Spring '07 term at USC.

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Chapter 14 - [5M] Chapter 14 - Acids and Bases Monday,...

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