Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 6.23P
6-23 We dissolved 0.32 g of aspartic acid in 115.0 mL of water and obtained a clear solution. After it stands for two days at room temperature, we notice a white powder at the bottom of the beaker. What may have happened?
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Aspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are:
Ka1 = 1.02 x 10-2
Ka2 = 1.26 x 10-4
Ka3 = 9.95 x 10-11
How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3?
Find the answer to the nearest mL. The answer is between 300 and 400. Retain 4 d.p. in your calculations and don't round until you calculate the volume of NaOH required at the very end.
Aspartic acid is a polyprotic system whose forms can be written as H3A+, H2A, HA-, and A2-. Its Ka values are:
Ka1 = 1.02 x 10-2
Ka2 = 1.26 x 10-4
Ka3 = 9.95 x 10-11
How many milliliters of 0.30 M NaOH should be added to 100 mL of a solution containing 8.0 g of the neutral, zwitterionic form of aspartic acid (M.W. = 133.10 g/mol) to bring the pH to 10.3?
Find the answer to the nearest mL.
4. What is the ThOD of a solution containing 130 mg/L sucrose (C₁2H22O11)?
C12H22O11 + 12 O₂ → 12 CO₂ + 11 H₂O
Chapter 6 Solutions
Introduction to General, Organic and Biochemistry
Ch. 6.5 - Problem 6-1 How would we prepare 250 mL of a 4.4%...Ch. 6.5 - Prob. 6.2PCh. 6.5 - Problem 6-3 How would we prepare 2.0 L of a 1.06 M...Ch. 6.5 - Prob. 6.4PCh. 6.5 - Problem 6-5 If a 0.300 M glucose solution is...Ch. 6.5 - Problem 6-6 A certain wine contains 0.010 M NaHSO3...Ch. 6.5 - Prob. 6.7PCh. 6.5 - Problem 6-8 A concentrated solution of 15% w/v KOH...Ch. 6.5 - Problem 6-9 Sodium hydrogen sulfate, NaHSO4, which...Ch. 6.8 - Prob. 6.10P
Ch. 6.8 - Prob. 6.11PCh. 6.8 - Prob. 6.12PCh. 6.8 - Problem 6-13 What is the osmolarity of a 3.3% w/v...Ch. 6.8 - Prob. 6.14PCh. 6 - 6-15 Answer true or false. (a) A solute is the...Ch. 6 - 6-16 Answer true or false. (a) Solubility is a...Ch. 6 - 6-17 Vinegar is a homogeneous aqueous solution...Ch. 6 - 6-18 Suppose you prepare a solution by dissolving...Ch. 6 - 6-19 In each of the following, tell whether the...Ch. 6 - 6-20 Give a familiar example of solutions of each...Ch. 6 - 6-21 Are mixtures of gases true solutions or...Ch. 6 - 6-22 Answer true or false. (a) Water is a good...Ch. 6 - 6-23 We dissolved 0.32 g of aspartic acid in 115.0...Ch. 6 - Prob. 6.24PCh. 6 - 6-25 A small amount of solid is added to a...Ch. 6 - 6-26 On the basis of polarity and hydrogen...Ch. 6 - Prob. 6.27PCh. 6 - 6-28 Which pairs of liquids are likely to be...Ch. 6 - Prob. 6.29PCh. 6 - 6-30 Near a power plant, warm water is discharged...Ch. 6 - 6-31 If a bottle of beer is allowed to stand for...Ch. 6 - 6-32 Would you expect the solubility of ammonia...Ch. 6 - Prob. 6.33PCh. 6 - Prob. 6.34PCh. 6 - 6-35 Describe how we would prepare the following...Ch. 6 - Prob. 6.36PCh. 6 - 6-37 Calculate the w/v percentage of each of these...Ch. 6 - 6-38 Describe how we would prepare 250 mL of 0.10...Ch. 6 - 6-39 Assuming that the appropriate volumetric...Ch. 6 - 6-40 What is the molarity of each solution? (a) 47...Ch. 6 - 6-41 A teardrop with a volume of 0.5 mL contains...Ch. 6 - Prob. 6.42PCh. 6 - 6-43 The label on a sparkling cider says it...Ch. 6 - Prob. 6.44PCh. 6 - 6-45 The label on ajar of jam says it contains 13...Ch. 6 - 6-46 A particular toothpaste contains 0.17 g NaF...Ch. 6 - 6-47 A student has a bottle labeled 0.750% albumin...Ch. 6 - 6-48 How many grams of solute are present in each...Ch. 6 - 6-49 A student has a stock solution of 30.0% w/v...Ch. 6 - Prob. 6.50PCh. 6 - Prob. 6.51PCh. 6 - Prob. 6.52PCh. 6 - 6-53 Dioxin is considered to be poisonous in...Ch. 6 - 6-54 An industrial wastewater contains 3.60 ppb...Ch. 6 - 6-55 According to the label on a piece of cheese,...Ch. 6 - Prob. 6.56PCh. 6 - Prob. 6.57PCh. 6 - Prob. 6.58PCh. 6 - Prob. 6.59PCh. 6 - 6-60 Predict which of these covalent compounds is...Ch. 6 - Prob. 6.61PCh. 6 - Prob. 6.62PCh. 6 - Prob. 6.63PCh. 6 - Prob. 6.64PCh. 6 - Prob. 6.65PCh. 6 - 6-66 What gives nanotubes their unique optical and...Ch. 6 - 6-67 Calculate the freezing points of solutions...Ch. 6 - 6-68 If we add 175 g of ethylene glycol, C2H6O2,...Ch. 6 - Prob. 6.69PCh. 6 - 6-70 In winter, after a snowstorm, salt (NaCI) is...Ch. 6 - 6-71 A 4 M acetic acid (CH3COOH) solution lowers...Ch. 6 - Prob. 6.72PCh. 6 - 6-73 In each case, tell which side (if either)...Ch. 6 - 6-74 An osmotic semipermeable membrane that allows...Ch. 6 - 6-75 Calculate the osmolarity of each of the...Ch. 6 - Prob. 6.76PCh. 6 - Prob. 6.77PCh. 6 - 6-78 (Chemical Connections 6A) Oxides of nitrogen...Ch. 6 - Prob. 6.79PCh. 6 - Prob. 6.80PCh. 6 - Prob. 6.81PCh. 6 - 6-82 (Chemical Connections 6C) A solution contains...Ch. 6 - 6-83 (Chemical Connections 6C) The concentration...Ch. 6 - 6-84 (Chemical Connections 6D) What is the...Ch. 6 - Prob. 6.85PCh. 6 - Prob. 6.86PCh. 6 - Prob. 6.87PCh. 6 - Prob. 6.88PCh. 6 - Prob. 6.89PCh. 6 - Prob. 6.90PCh. 6 - 6-91 When a cucumber is put into a saline solution...Ch. 6 - Prob. 6.92PCh. 6 - 6-93 Two bottles of water are carbonated, with CO2...Ch. 6 - Prob. 6.94PCh. 6 - Prob. 6.95PCh. 6 - 6-96 We know that a 0.89% saline (NaCI) solution...Ch. 6 - Prob. 6.97PCh. 6 - Prob. 6.98PCh. 6 - 6-99 A concentrated nitric acid solution contains...Ch. 6 - 6-100 Which will have greater osmotic pressure?...Ch. 6 - Prob. 6.101PCh. 6 - Prob. 6.102PCh. 6 - 6-103 A swimming pool containing 20,000. L of...Ch. 6 - Prob. 6.104PCh. 6 - Prob. 6.105PCh. 6 - Prob. 6.106PCh. 6 - Prob. 6.107PCh. 6 - Prob. 6.108PCh. 6 - Prob. 6.109PCh. 6 - Prob. 6.110PCh. 6 - 6-111 As noted in Section 6-8C, the amount of...Ch. 6 - 6-112 List the following aqueous solutions in...Ch. 6 - 6-113 List the following aqueous solutions in...
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