Chemical Principles: The Quest for Insight Fundamentals H, I, J, K, L Solutions

Chemical Principles: The Quest for Insight Fundamentals H, I, J, K, L Solutions

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H.12 3 4 4 2 6 4 BF (g) 3 NaBH (s) 3 NaBF (s) + 2 B H (g) + 2 6 2 2 3 2 B H (g) + 3 O (g) B O (s) + 3 H O(l) 4 H.14 2 3 3 4 5 2 5 Sb O (s) + 2 SbCl (s) 3 Sb O Cl (s) 4 H.20 3 2 2 4 NH (g) 5 O (g) 4 NO(g) 6 H O(l) + + 2 2 2 NO(g) O (g) 2 NO (g) + 2 2 3 3 NO (g) H O(l) 2 HNO (aq) NO(g) + + I.12 (a) 4 3 2 4 3 2 2 NH NO (aq) CaCl (aq) 2 NH Cl(aq) Ca (NO ) (aq) + + No precipitate is expected. (b) 3 MgCO (s) is insoluble. It will remain undissolved and the 3 NaNO will dissolve. (c) 2 4 2 4 Na SO (aq) BaCl (aq) 2 NaCl(aq) BaSO (s) + + Barium sulfate, 4 BaSO , will precipitate. I.24 No precipitate with Cl - indicates no Ag + . The white precipitate with 2 4 SO - is 4 CaSO , so 2 Ca + is present. The black precipitate with the supernatant is HgS, indicating the presence of 2 Hg + . Therefore we would report 2 2 Ca and Hg + + as being present in the solution. J.4 (a) overall equation: 3 4 3 4 2 H PO (aq) 3 KOH(aq) K PO (aq) 3 H O(l) + + total ionic equation: 3 4 3 4 2 3 H (aq) PO (aq) + 3 K (aq) 3 OH (aq) 3 K (aq) PO (aq) 3 H O(l) + - + - + - + + + + net ionic equation: 2 H (aq) OH (aq) H O(l) + - + (b) overall equation: 2 3 2 3 2 2 2 Ba(OH) (aq) + CH CO H(aq) Ba(CH CO ) (aq) + 2 H O(l) 4
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total ionic equation: 2+ 3 2 2+ 3 2 2 Ba (aq) 2 OH (aq) 2 CH CO H(aq) Ba (aq) 2 CH CO (aq) 2 H O(l) - - + + + + net ionic equation: 3 2 3 2 2
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This homework help was uploaded on 04/08/2008 for the course CHEM CHEM 6B taught by Professor Christinajohnson during the Fall '07 term at UCSD.

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Chemical Principles: The Quest for Insight Fundamentals H, I, J, K, L Solutions

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