CHM 2045_HOMEWORK6

CHM 2045_HOMEWORK6 - 2Al(NO 3 3(aq iii Cl 2(aq 2Al(s I 2(aq 2NaCl(aq iv PbS(s 4H 2 O 2(aq PbSO 4(s 4H 2 O(l b Identify oxidized and reduced species

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CHM 2045 HOMEWORK # 6 Spring 2007 Instructor: Dr. Fayiga DUE April 18, 2007 1 a) Calculate the pH of the following solutions i) 0.01M HCl ii) 0.10 M HNO 3 iii) 0.001M H 2 SO 4 iv) 0.01 M NaOH v) 0.10 KOH 2) What is the oxidation number of a) S in SO 2 b) C in COCl 2 c) Mn in MnO 4 d) N in HNO 2 e) Br in HBrO 3) a) Write redox equations from the following reactions i) Ni (s) + Cl 2 (g) NiCl 2 (s) ii) 3Fe(NO 3 ) 2 (aq) + 2Al (s) 3Fe(s)
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Unformatted text preview: + 2Al(NO 3 ) 3 (aq) iii) Cl 2 (aq) + 2Al (s) I 2 (aq) + 2NaCl (aq) iv) PbS (s) + 4H 2 O 2 (aq) PbSO 4 (s) + 4H 2 O (l) b) Identify oxidized and reduced species in the above equations 4. Based on the activity series, complete the following equations a) Mn(s) + NiCl 2 (aq) b) Cu (s) + Cr(C 2 H 3 O 2 ) 3 (aq) c) Cr(s) + NiSO 4 (aq) d) Pt (s) + HBr(aq) e) H 2 (g) + CuCl 2 (aq)...
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This note was uploaded on 09/12/2011 for the course CHM 2045 taught by Professor Weinstein during the Spring '11 term at Santa Fe College.

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