Homework 7 (Chapter 4)

Homework 7 (Chapter 4) - Michael Yagudayev 106180606 CHE...

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Michael Yagudayev 106180606 CHE 131 Homework 7 Chapter 4 C 4 Problems: 10, 20, 24, 30, 38, 40, 44, 46, 58, 60, 62, 66, 71, 77, 82, 84 (Due 6/28). 10. 4 NH 3 (g) + 5 O 2 (g) 4 NO (g) + 6 H 2 O (g) NH 3 O 2 NO H 2 O # molecules 1 1 1 1 # of atoms 4 2 2 3 # of moles of molecules 4 5 4 6 Mass 68.1216 g 159.994 g 120.0244 g 108.0912 g Total mass of reactants 228.1156 g Total mass of products 228.1156 g 20. (a) Cu (s) + O 2 (g) 2 CuO (s) – combination (b) NH 4 NO 3 (s) N 2 O (g) + 2 H 2 O (l) – decomposition (c) AgNO 3 (aq) + KCl (aq) AgCl (s) + KNO 3 (aq) – exchange (d) Mg (s) + 2 HCl (aq) MgCl 2 + H 2 displacement 24. (a) 2 C 4 H 10 + 13 O 2 8 CO 2 + 10 H 2 O (b) C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O (c) 2 C 4 H 8 O + 11 O 2 8 CO 2 + 8 H 2 O 30. (a) 4 Al + 3 O 2 2 Al 2 O 3 (b) N 2 + 3 H 2 2 NH 3 (c) 2 C 6 H 6 + 15 O 2 6 H 2 O + 12 CO 2 38. 4 HCl + MnO 2 Cl 2 + 2 H 2 O + MnCl 2 How many moles HCl are needed to form 12.5 moles Cl 2 ? . × = . 12 5 mol Cl2 4 mol HCl1 mol Cl2 50 0 mol HCl
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This note was uploaded on 10/03/2010 for the course CHE 131 taught by Professor Kerber during the Summer '08 term at SUNY Stony Brook.

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Homework 7 (Chapter 4) - Michael Yagudayev 106180606 CHE...

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