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Problem Set 13 CHEM 1252 October 21, 2019 Textbook Reading Assignment: 14.6-10...
APP-17 A 4 Problem Set 13 CHEM 1252 October 21, 2019 Textbook Reading Assignment: 14.6-10 Additional...
APP-17 A 4 Problem Set 13 CHEM 1252 October 21, 2019 Textbook Reading Assignment: 14.6-10 Additional Practice Problems: 1466 -68.20.73.75.27.79.83.86-87,89,101,107,111-115,119 1. Ammonia and hydrogen sulfide can both be formed directly from their elements. At 90 "C... Nale) + 3H2(e) -2NH3G) * = 120 Hale) + SC) - H256) K = 0.068 Find Kat 90 °C for the following reaction 2NH3(e) + 35() - 3H.SG) + Nale) K? 2. The equilibrium constant for the following reaction is called the solubility product...
please explain well. I don't understand at all. Explain all steps ans math involved. 1. Ammonia...
please explain well. I don't understand at all. Explain all
steps ans math involved.
1. Ammonia and hydrogen sulfide can both be formed directly from their elements. At 90 °C... N2(8) +3H2(g) 2NHa(g) K 120 K 0.068 H2(8)+S()H2S(s) Find K at 90 °C for the following reaction: K ? 2NH(R) +3S(s)3H2S(g) + N2(8)
please explain well. I don't understand at all. Explain all steps ans math involved. 3. Elemental...
please explain well. I don't understand at all. Explain all
steps ans math involved.
3. Elemental sulfur is a molecular solid. The most stable allotrope of elemental sulfur is actually the eight-membered ring, Ss. Thus, the elemental sulfur in the H2S formation reaction shown in question 1 should actually be written as Sa(s). Use the equilibrium constant given in question 1 to find K for the following reaction: 8H2(g) + S«(s) - 8H2S(8) K ? 1. Ammonia and hydrogen sulfide...
Help please and show all work! Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading...
Help please and show all work!
Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading Assignment: 15.5-8 [and see App. 5 for K, or ko values] Additional Practice Problems: 15.51,57,59,61,63,65-66,69-71,77-78,80,84 1. Calculate the concentration of an aqueous HNO3 solution that has a pH of 2.45.
Help Please! Show all work October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment:...
Help Please! Show all work
October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a All=-10.5 kJ and a AS +50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table A4.3)...
Help Please! Show all work Problem Set 12 October 16, 2019 CHEM 1252 Textbook Reading Assignment:...
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Problem Set 12 October 16, 2019 CHEM 1252 Textbook Reading Assignment: 14.1-5 Additional Practice Problems: 14.1,7,13,17,19,23,25,29,31,41-42,47,53,55,58,61 1. What does it mean when we say that chemical equilibrium is a dynamic process? 2. Write an expression for Kor K, (whichever is more appropriate) for each of the following reactions, and give typical units (if any) for the equilibrium constant. (a)Na(e) + O2(g) - 2 NO(g) (b) 2012(g) + 2H2008) - 4HCI(g) + O2(g) (c) 1(aq) +...
Help Please! Show all work Problem Set 10 CHEM 1252 October 4, 2019 Textbook Reading Assignment: 12.1-4 Additional P...
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Problem Set 10 CHEM 1252 October 4, 2019 Textbook Reading Assignment: 12.1-4 Additional Practice Problems: 12.11,13,15,21,25,27,29,13,35,37 1. Choose the member of each pair with the higher entropy, and explain your answer. (a) 1 mol H2O(s) or 1 mol H20(1), both at 100 °C and 1 atm (b) 1 mol O2(e) or 1 mol O (g) under equivalent conditions (c) Ice at -20 °C or ice at -80 °C (d) 1 mol N2(g) at 0 °C...
Help please and show all work! Problem Set 14 CHEM 1252 November 4, 2019 Textbook Reading Assignment: 15.1-4 Additio...
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Problem Set 14 CHEM 1252 November 4, 2019 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-15,17,19,21,24,28-31,35,37,41,43,45,47 1. Acetic acid (H3C202H) has k, = 1.8 x 10-5 and acetate (H2CO3--) has ks = 5.6 x 10- (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and Ko equilibrium constant expressions for the above reactions. (c) Use your expressions from part...
Help please and show all work! CHEM 1252 November 13, 2019 Problem Set 16 Textbook Reading...
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CHEM 1252 November 13, 2019 Problem Set 16 Textbook Reading Assignment: 16.1-4 Additional Practice Problems: 15.95,101-106,109, 16.1,5,15,17,19,21,23,25,31,35,43-45,47 1. Hypochlorous acid (HOCI) is a weak acid (n = 7.53). Sodium hypochlorite is the sodium salt of its conjugate base and is the main ingredient in "household bleach. (a) Write balanced chemical equations, with physical states, for acid dissociation of HOCI and base hydrolysis of hypochlorite (OC). (b) Calculate the pH of a 0.125 M solution...
o 6=0H-TAS -10.58 +50.5 Problem Set 11 ) CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-8 Additional...
o 6=0H-TAS -10.58 +50.5 Problem Set 11 ) CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a Hº = -10.5 kJ and a AS = + 50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. AHLO it is exothermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (C) Is the reaction spontaneous at 0 °C?...
APP-17 A 4 Problem Set 13 CHEM 1252 October 21, 2019 Textbook Reading Assignment: 14.6-10 Additional Practice Problems: 1466 -68.20.73.75.27.79.83.86-87,89,101,107,111-115,119 1. Ammonia and hydrogen sulfide can both be formed directly from their elements. At 90 "C... Nale) + 3H2(e) -2NH3G) * = 120 Hale) + SC) - H256) K = 0.068 Find Kat 90 °C for the following reaction 2NH3(e) + 35() - 3H.SG) + Nale) K? 2. The equilibrium constant for the following reaction is called the solubility product...
please explain well. I don't understand at all. Explain all
steps ans math involved.
1. Ammonia and hydrogen sulfide can both be formed directly from their elements. At 90 °C... N2(8) +3H2(g) 2NHa(g) K 120 K 0.068 H2(8)+S()H2S(s) Find K at 90 °C for the following reaction: K ? 2NH(R) +3S(s)3H2S(g) + N2(8)
please explain well. I don't understand at all. Explain all
steps ans math involved.
3. Elemental sulfur is a molecular solid. The most stable allotrope of elemental sulfur is actually the eight-membered ring, Ss. Thus, the elemental sulfur in the H2S formation reaction shown in question 1 should actually be written as Sa(s). Use the equilibrium constant given in question 1 to find K for the following reaction: 8H2(g) + S«(s) - 8H2S(8) K ? 1. Ammonia and hydrogen sulfide...
Help please and show all work!
Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading Assignment: 15.5-8 [and see App. 5 for K, or ko values] Additional Practice Problems: 15.51,57,59,61,63,65-66,69-71,77-78,80,84 1. Calculate the concentration of an aqueous HNO3 solution that has a pH of 2.45.
Help Please! Show all work
October 11, 2019 CHEM 1252 Problem Set 11 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a All=-10.5 kJ and a AS +50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (c) Is the reaction spontaneous at 0 °C? 2. Use data from Appendix 4 (Table A4.3)...
Help Please! Show all work
Problem Set 12 October 16, 2019 CHEM 1252 Textbook Reading Assignment: 14.1-5 Additional Practice Problems: 14.1,7,13,17,19,23,25,29,31,41-42,47,53,55,58,61 1. What does it mean when we say that chemical equilibrium is a dynamic process? 2. Write an expression for Kor K, (whichever is more appropriate) for each of the following reactions, and give typical units (if any) for the equilibrium constant. (a)Na(e) + O2(g) - 2 NO(g) (b) 2012(g) + 2H2008) - 4HCI(g) + O2(g) (c) 1(aq) +...
Help Please! Show all work
Problem Set 10 CHEM 1252 October 4, 2019 Textbook Reading Assignment: 12.1-4 Additional Practice Problems: 12.11,13,15,21,25,27,29,13,35,37 1. Choose the member of each pair with the higher entropy, and explain your answer. (a) 1 mol H2O(s) or 1 mol H20(1), both at 100 °C and 1 atm (b) 1 mol O2(e) or 1 mol O (g) under equivalent conditions (c) Ice at -20 °C or ice at -80 °C (d) 1 mol N2(g) at 0 °C...
Help please and show all work!
Problem Set 14 CHEM 1252 November 4, 2019 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-15,17,19,21,24,28-31,35,37,41,43,45,47 1. Acetic acid (H3C202H) has k, = 1.8 x 10-5 and acetate (H2CO3--) has ks = 5.6 x 10- (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and Ko equilibrium constant expressions for the above reactions. (c) Use your expressions from part...
Help please and show all work!
CHEM 1252 November 13, 2019 Problem Set 16 Textbook Reading Assignment: 16.1-4 Additional Practice Problems: 15.95,101-106,109, 16.1,5,15,17,19,21,23,25,31,35,43-45,47 1. Hypochlorous acid (HOCI) is a weak acid (n = 7.53). Sodium hypochlorite is the sodium salt of its conjugate base and is the main ingredient in "household bleach. (a) Write balanced chemical equations, with physical states, for acid dissociation of HOCI and base hydrolysis of hypochlorite (OC). (b) Calculate the pH of a 0.125 M solution...
o 6=0H-TAS -10.58 +50.5 Problem Set 11 ) CHEM 1252 October 11, 2019 Textbook Reading Assignment: 12.5-8 Additional Practice Problems: 12.43-44,46-48,50-55,57,59-61,63,65,67,73,75,81 1. A certain reaction has a Hº = -10.5 kJ and a AS = + 50.5 3/K (a) Explain whether or not the reaction is endothermic or exothermic. AHLO it is exothermic (b) Explain if the reaction is leading to an increase, decrease, or no change in disorder of the system. (C) Is the reaction spontaneous at 0 °C?...
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