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Exam 2 key - ZnS(s Zn 2 S 2 ZnS Na SO 4 2 – 12 2 MnO 4 5...

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Chem 201-75 Exam 2 February 27, 2003 Dr. Stolowich 1 T, T, F, T, F, T, F, T 2 Single displacement, Y Combination, N 3 Cu +2, N +5 I +3, F -1 4 no ppt AgI 5 50.0 6 0.0182 7 - 42.1 8 1.427 9 0.087 10 0.040 11 Na 2 S (aq) + ZnSO 4 (aq) Na 2 SO 4
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Unformatted text preview: + ZnS (s) Zn 2+ + S 2 - ZnS Na + , SO 4 2 – 12 2 MnO 4 -+ 5 H 2 O 2 + 6 H + 5 O 2 + 2 Mn 2+ + 8 H 2 O oxidized: H 2 O 2 reduced: MnO 4 – 13 19.8 L 0.317 mol...
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