13 Electron Transfer Reactions

13 Electron Transfer Reactions - Which one of these...

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1 1 Which one of these compounds is not soluble in water? (A) Fe(ClO 4 ) 2 (B) Na 2 SO 4 (C) KBr (D) Na 2 CO 3 (E) Ba 3 (PO 4 ) 2 2 What is meant by strong and weak acids and bases? A strong acid ionizes completely, a weak acid does not. A strong base ionizes or dissociates completely, a weak base does not. Strong and weak in this context do not refer to concentration, like a weak drink, weak coffee.
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2 3 Weak Acid Example Weak acids do not ionize completely in water. HF(aq) + H 2 O(l) H 3 O + (aq) + F - (aq) Lots of this! Not much of this! Acid Conjugate Base 4 Weak Base Example Lots of this! Not much of this! Weak bases do not ionize completely in water. Base Conjugate Acid
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3 5 Common Acids and Bases Strong Acids: HCl, HBr, HI, HNO 3 , H 2 SO 4 , HClO 4 Weak Acids: All the rest: e.g. HF, CH 3 COOH, H 3 PO 4 , H 2 CO 3 Strong Bases: LiOH, NaOH, KOH, metal hydroxides sodium amide and sodium acetylide NaNH 2 and NaC 2 H NH 2 - and C 2 H - Weak Bases: NH 3 , CH 3 NH 2 , conjugate bases of acids: anions of acids HSO 4 6 Classify each of these as an acid or a base. Identify which are strong and which are weak.
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This note was uploaded on 06/04/2011 for the course CHE 129 taught by Professor Hanson during the Fall '08 term at SUNY Stony Brook.

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13 Electron Transfer Reactions - Which one of these...

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