Chapter+7+and+8+Instructor+Overheads+from+8-26

Chapter+7+and+8+Instructor+Overheads+from+8-26 - Strong...

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1. Common Strong Acids – Know formulas and names. a. H 2 SO 4 - Sulfuric Acid H 2 SO 4 + H 2 O HSO 4 - + H 3 O + (K a very large) HSO 4 - + H 2 O SO 4 2- + H 3 O + (K a = 1.03 x 10 -2 ) 1. HClO 4 - Perchloric Acid 2. HNO 3 - Nitric Acid 3. HCl - Hydrochloric Acid 4. HI - Hydroiodic Acid 5. HBr - Hdyrobromic Acid Common Strong Bases – Know formulas and names. a. LiOH, NaOH, KOH, RbOH, CsOH KOH K + + OH - (K b very large) Ca(OH) 2 , Mg(OH) 2 , Ba(OH) 2 , Sr(OH) 2 , Ca(OH) 2 Ca 2+ + 2 OH - (K b very large) Strong Acids and Bases
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Strong Acids and Bases: General Chem. Review [H 3 O + ] pH pOH [OH - ] 1.0 x 10 -5 M HCl 1.0 x 10 -5 M 5.00 9.00 1.0 x 10 -9 M 1.0 x 10 -4 M NaOH 1.0 x 10 -10 M 10.00 4.00 1.0 x 10 -4 M [H + ][OH - ] = K w (K w = 1 .0 x 10 -14 at 298 K ) pH + pO H = 14 .00 pH = -Log[H + ] or [H + ] = 10 -pH pOH = -Log[OH - ] or [OH - ] = 10 -pOH *Very accurate ionization constants (K w ) for water at various temperatures can be found in the CRC Handbook of Chemistry and Physics .
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The Case of Dilute Strong Acids and Strong Bases Consider a 1.0 x 10 -8 M solution of HCl.
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This note was uploaded on 12/06/2011 for the course CHEM 241 taught by Professor Tiani during the Fall '08 term at UNC.

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Chapter+7+and+8+Instructor+Overheads+from+8-26 - Strong...

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