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Problem Set 14 CHEM 1252 November 4, 2019 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-...
Problem Set 14 November 4, 2019 CHEM 1252 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-15.12.19.21,24,28-31,35,37,4...
Problem Set 14 November 4, 2019 CHEM 1252 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-15.12.19.21,24,28-31,35,37,4 . Acetic acid (HCOH) has 1.8 10-5 and acetate (HCO) has (a) Write balanced chemical equilibrium equations (with physical state acetic acid and base hydrolysis of acetate lon. 15.11-15,17,19,21,24,28-31,35,37,41,43,45,47 acetate (HCO") has = 5.6 x 10-10, $(with physical states) for acid dissociation of (b) Write K, and equilibrium constant expressions for the above reactions (c) Use your expressions from part b to show that...
Help please and show all work! Problem Set 14 CHEM 1252 November 4, 2019 Textbook Reading Assignment: 15.1-4 Additio...
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...
Problem Set 15 CHEM 1252 November 10, 2019 4. A 0.100 M solution of bromoacetic acid...
Problem Set 15 CHEM 1252 November 10, 2019 4. A 0.100 M solution of bromoacetic acid (BrCH COH) is 13.2% Ionized dissociated). (a) Calculate [H3O+] (or "[*]"), [BrCH.CO." ] (or "[A-]"), and (BrCH2COH) (or "CHA]"). (b) Calculate K, and pk, for bromoacetic acid. 5. Ethylamine (CHCH NH) is a weak base in water. (a) Write a balanced chemical equilibrium reaction for the base hydrolysis of ethylamine. Label the acid, base, conjugate acid, and conjugate base. (b) Would you expect ethylammonium...
TUA ax Problem Set 14 CHEM 1252 A+ 25 °C, K. - 1.0 x 10-', while...
TUA ax Problem Set 14 CHEM 1252 A+ 25 °C, K. - 1.0 x 10-', while at 0 °C, K. - 1.2 x 10-15 a) Explain whether water becomes a stronger or weaver acid as temperature decreases November 4, 2019 (b) Write the equilibrium constant expression for the water to hydronium ion and budroxide and calculate the concentrations of TH 01 and IOH) in pure water at (c) An aqueous solution at 25 °C has [OH- 1 neutral? Calculate (H*]...
Help please and show all work! Problem Set 14 CHEM 1252 November 4, 2019 4. At...
Help please and show all work!
Problem Set 14 CHEM 1252 November 4, 2019 4. At 25 °C, K= 1.0 x 10-14, while at 0 °C, K= 1.2 x 10-15 (a) Explain whether water becomes a stronger or weaker acid as temperature decreases. (b) Write the equilibrium constant expression for the ionization of water to hydronium ion and hydroxide and calculate the concentrations of [H3O*] and [OH in pure water at 0 °C. (c) An aqueous solution at 25 °C...
Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading Assignment: 15.5-8 [and see App. 5...
Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading Assignment: 15.5-8 [and see App. 5 for Kor k, 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 HNO solution that has a pH of 2.45. 2. The på, of hypochlorous acid (HOCI) is 7.53. (a) Calculate the K. of HOCI. Given that the pk, of hypobromous acid (HOBr) is 8.63, which acid is stronger, and how do you know? (b) Write the reaction (with physical states)...
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...
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...
Help please and show all work! Problem Set 17 CHEM 1252 November 18, 2019 Textbook Reading...
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Problem Set 17 CHEM 1252 November 18, 2019 Textbook Reading Assignment 16.5-8 Additional Practice Problems: 16.51,55-58,63,73,75,79,81-82,89,91,93,95,97-98,105,123,127 1. A buffer called "This is widely used in biochemistry. The neutral) compound Tris itself is a weak base, So we'll notate it as "B." The pk, of its conjugate acid (HB) is 8.07. The overall goal of this problem is to calculate the pH change of a Tris buffer upon addition of some strong base. (a) Assume...
Help please and show all work! Problem Set 15 CHEM 1252 November 10, 2019 4. A...
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Problem Set 15 CHEM 1252 November 10, 2019 4. A 0.100 M solution of bromoacetic acid (BrCH2CO2H) is 13.2% ionized (dissociated). (a) Calculate [H3O+] (or "[H*]"), [BrCH2CO2-] (or "[A-]"), and [BrCH2CO2H] (or "[HA]"). (b) Calculate K, and pk, for bromoacetic acid.
Problem Set 14 November 4, 2019 CHEM 1252 Textbook Reading Assignment: 15.1-4 Additional Practice Problems: 15.11-15.12.19.21,24,28-31,35,37,4 . Acetic acid (HCOH) has 1.8 10-5 and acetate (HCO) has (a) Write balanced chemical equilibrium equations (with physical state acetic acid and base hydrolysis of acetate lon. 15.11-15,17,19,21,24,28-31,35,37,41,43,45,47 acetate (HCO") has = 5.6 x 10-10, $(with physical states) for acid dissociation of (b) Write K, and equilibrium constant expressions for the above reactions (c) Use your expressions from part b to show that...
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...
Problem Set 15 CHEM 1252 November 10, 2019 4. A 0.100 M solution of bromoacetic acid (BrCH COH) is 13.2% Ionized dissociated). (a) Calculate [H3O+] (or "[*]"), [BrCH.CO." ] (or "[A-]"), and (BrCH2COH) (or "CHA]"). (b) Calculate K, and pk, for bromoacetic acid. 5. Ethylamine (CHCH NH) is a weak base in water. (a) Write a balanced chemical equilibrium reaction for the base hydrolysis of ethylamine. Label the acid, base, conjugate acid, and conjugate base. (b) Would you expect ethylammonium...
TUA ax Problem Set 14 CHEM 1252 A+ 25 °C, K. - 1.0 x 10-', while at 0 °C, K. - 1.2 x 10-15 a) Explain whether water becomes a stronger or weaver acid as temperature decreases November 4, 2019 (b) Write the equilibrium constant expression for the water to hydronium ion and budroxide and calculate the concentrations of TH 01 and IOH) in pure water at (c) An aqueous solution at 25 °C has [OH- 1 neutral? Calculate (H*]...
Help please and show all work!
Problem Set 14 CHEM 1252 November 4, 2019 4. At 25 °C, K= 1.0 x 10-14, while at 0 °C, K= 1.2 x 10-15 (a) Explain whether water becomes a stronger or weaker acid as temperature decreases. (b) Write the equilibrium constant expression for the ionization of water to hydronium ion and hydroxide and calculate the concentrations of [H3O*] and [OH in pure water at 0 °C. (c) An aqueous solution at 25 °C...
Problem Set 15 CHEM 1252 November 10, 2019 Textbook Reading Assignment: 15.5-8 [and see App. 5 for Kor k, 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 HNO solution that has a pH of 2.45. 2. The på, of hypochlorous acid (HOCI) is 7.53. (a) Calculate the K. of HOCI. Given that the pk, of hypobromous acid (HOBr) is 8.63, which acid is stronger, and how do you know? (b) Write the reaction (with physical states)...
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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...
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...
Help please and show all work!
Problem Set 17 CHEM 1252 November 18, 2019 Textbook Reading Assignment 16.5-8 Additional Practice Problems: 16.51,55-58,63,73,75,79,81-82,89,91,93,95,97-98,105,123,127 1. A buffer called "This is widely used in biochemistry. The neutral) compound Tris itself is a weak base, So we'll notate it as "B." The pk, of its conjugate acid (HB) is 8.07. The overall goal of this problem is to calculate the pH change of a Tris buffer upon addition of some strong base. (a) Assume...
Help please and show all work!
Problem Set 15 CHEM 1252 November 10, 2019 4. A 0.100 M solution of bromoacetic acid (BrCH2CO2H) is 13.2% ionized (dissociated). (a) Calculate [H3O+] (or "[H*]"), [BrCH2CO2-] (or "[A-]"), and [BrCH2CO2H] (or "[HA]"). (b) Calculate K, and pk, for bromoacetic acid.
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