Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 13, Problem 94QAP
Consider a weak organic base (nonelectrolyte) with molar mass 281 g/mol. An aqueous solution of the base has a pH of 8.73 and an osmotic pressure of SS mm Hg at 25°C. What is Kb for the weak base?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
2. Acetic acid is a weak acid that ionizes in solution as follows:
CH3COOH(aq) →→→ CH3COO- (aq) + H+ (aq)
If the freezing point of a 0.106 m CH3COOH solution is -0.203°C, calculate the percent of the acid tha
has undergone ionization.
A.) What is the pOH of an aqueous solution of 0.364 M nitric acid?
B.) If 20.1 grams of an aqueous solution of aluminum nitrate, Al(NO3)3, contains 2.34 grams of aluminum nitrate, what is the percentage by mass of aluminum nitrate in the solution?
C.) A sample of methane gas at a pressure of 0.638 atm and a temperature of 21.8 °C, occupies a volume of 11.1 liters. If the gas is compressed at constant temperature to a volume of 2.91 liters, the pressure of the gas sample will be__________ atm. ( fill in the blank)
6 4
The active ingredient formed by aspirin in the body is salicylic acid, CH₂OH(CO₂H). The carboxyl group
(-CO,H) acts as a weak acid. The phenol group (an OH group bonded to an aromatic ring) also acts as an
acid but a much weaker acid. What are all of the ionic and molecular species present in a 0.001-M aqueous
solution of CH₂OH(CO₂H) in order of descending concentration?
4
A
B
C
D
[H₂O]> [C_H_OH(CO₂H)]> [H*]>[C_H₂OH(CO₂) -]>[C_H₂O(CO₂H¯)]> [OH-]
[H₂O]>[H+]>[C_H₂OH(CO₂H)]>[C_H_OH(CO₂)¯]>[C.H₂O(CO₂H¯)]>[OH-]
[H₂O]> [C_H_OH(CO₂H)]> [CH₂OH(CO₂)-]> [C_H_O(CO₂H-)]> [OH-]>[H+]
[+H]] ] <[0²H]
Chapter 13 Solutions
Chemistry: Principles and Reactions
Ch. 13 - For each of the following reactions, indicate the...Ch. 13 - Follow the direction for Question 1 for the...Ch. 13 - According to the Brønsted-Lowry theory, which of...Ch. 13 - According to the Brønsted-Lowry theory, which of...Ch. 13 - Give the formula of the conjugate acid of (a) OH-...Ch. 13 - Give the formula for the conjugate base of (a)...Ch. 13 - Write a balanced equation showing how the H2PO4-...Ch. 13 - Follow the instructions of Question 7 for the...Ch. 13 - Using the Brønsted-Lowry model, write equations...Ch. 13 - Prob. 10QAP
Ch. 13 - Using the Brønsted-Lowry model, write an equation...Ch. 13 - Prob. 12QAPCh. 13 - Find the pH of solutions with the following[ H+ ]....Ch. 13 - Find the pH of solutions with the following[ H+ ]....Ch. 13 - Calculate H+ and OH- and in solutions with the...Ch. 13 - Calculate [H+] and [OH-] in solutions with the...Ch. 13 - Complete the following table for solutions at 25C.Ch. 13 - Complete the following table for solutions at 25C.Ch. 13 - Solution 1 has [ H+ ]=1.7102 M. Solution 2 has [...Ch. 13 - Solution R has pH 13.42. Solution Q has [ OH...Ch. 13 - Consider three solutions, R, Z, and Q. •...Ch. 13 - Solution A has a pH of 12.32. Solution B has [H+]...Ch. 13 - Unpolluted rain water has a pH of about 5.5. Acid...Ch. 13 - Most cola soft drinks have a pH of 3.1. Green tea...Ch. 13 - Find [OH-] and the pH of the following solutions....Ch. 13 - Find [H+] and the pH of the following solutions....Ch. 13 - Find [OH+], [OH-] and the pH of the following...Ch. 13 - Find [OH-], [H+], and the pH of the following...Ch. 13 - How many grams of HI should be added to 265 mL of...Ch. 13 - What is the pH of a solution obtained by adding...Ch. 13 - What is the pH of a solution obtained by adding...Ch. 13 - What is the pH of a solution obtained by mixing...Ch. 13 - Write the ionization equation and the Ka for each...Ch. 13 - Write the ionization equation and the Ka...Ch. 13 - Calculate Ka for the weak acids that have the...Ch. 13 - Prob. 36QAPCh. 13 - Prob. 37QAPCh. 13 - Consider these acids (a) Arrange the acids in...Ch. 13 - Rank the following solutions in order of...Ch. 13 - Rank the following acids (M=0.10)in order of...Ch. 13 - Prob. 41QAPCh. 13 - Rank the solutions in Questions 40 in order of...Ch. 13 - The pH of a 0.129 M solution of a weak acid, HB,...Ch. 13 - The pH of a 2.642 M solution of a weak acid, HB,...Ch. 13 - Paraminobenzene (PABA), HC7H6NO2, is used in some...Ch. 13 - Acetaminophen, HC8H8NO2 (MM=151.17g/mol), is the...Ch. 13 - Caproic acid, HC6H11O2, is found in coconut oil...Ch. 13 - Barbituric acid, HC4H3N2O3, is used to prepare...Ch. 13 - When aluminum chloride dissolves in water,...Ch. 13 - Using the Ka values in Table 13.2, calculate the...Ch. 13 - Barbituric acid, HC4H3N2O3, is used to prepare...Ch. 13 - Penicillin(MM=356g/mol), an antibiotic often used...Ch. 13 - Gallic acid, HC7H5O5, an ingredient in some...Ch. 13 - Anisic acid (K a=3.38105) is found in anise seeds...Ch. 13 - Phenol, once known as carbolic acid, HC6H5O, is a...Ch. 13 - Benzoic acid (K a=6.6105)is present in many...Ch. 13 - Chromic acid, H2CrO4, is commonly obtained by...Ch. 13 - Consider citric acid, H3C6H5O7, added to many soft...Ch. 13 - Consider a 0.45 M solution of ascorbic...Ch. 13 - Consider a 0.33 M solution of the diprotic acid...Ch. 13 - Phthalic acid H2C8H4O4, is a diprotic acid. It is...Ch. 13 - Selenious acid, H2SeO3, is primarily used to...Ch. 13 - Write the ionization expression and the Kb...Ch. 13 - Follow the instructions for Question 63 for the...Ch. 13 - Prob. 65QAPCh. 13 - Follow the directions of Question 65 for the...Ch. 13 - Using the equilibrium constants listed in Table...Ch. 13 - Using the equilibrium constants listed in Table...Ch. 13 - Find the value of Kb for the conjugate base of the...Ch. 13 - Find the values of Kb for the conjugate bases of...Ch. 13 - Determine [OH-], pOH and pH of a 0.28 M aqueous...Ch. 13 - Determine the [OH-] and pH of a 0.72 M solution of...Ch. 13 - Codeine (Cod), a powerful and addictive...Ch. 13 - Consider pyridine, C5H5N, a pesticide and deer...Ch. 13 - A solution of baking soda, NaHCO3, has a pH of...Ch. 13 - A solution of sodium cyanide, NaCN, has a pH of...Ch. 13 - Write formulas for two salts that (a) contain Ni3+...Ch. 13 - Write formulas for two salts that (a) contain NH4+...Ch. 13 - State whether 1 M solutions of the following salts...Ch. 13 - State whether 1 M solutions of the following salts...Ch. 13 - Write net ionic equations to explain the acidity...Ch. 13 - Prob. 82QAPCh. 13 - Arrange the following aqueous 0.1 M solutions in...Ch. 13 - Arrange the following aqueous 0.1 M solutions in...Ch. 13 - Unclassified At 25C, a 0.20 M solution of...Ch. 13 - Prob. 86QAPCh. 13 - There are 324 mg of acetylsalicylic acid...Ch. 13 - A student is asked to bubble enough ammonia gas...Ch. 13 - Prob. 89QAPCh. 13 - A student prepares 455 mL of a KOH solution, but...Ch. 13 - Consider the process H2O H+(aq)+OH(aq)H=55.8kJ (a)...Ch. 13 - Household bleach is prepared by dissolving...Ch. 13 - A tablet with a mass of 4.08 g contains 71.2%...Ch. 13 - Consider a weak organic base (nonelectrolyte) with...Ch. 13 - Prob. 95QAPCh. 13 - Which of the following is/are true regarding a 0.1...Ch. 13 - Which of the following is/are true about a 0.10 M...Ch. 13 - Consider the following six beakers. All have 100...Ch. 13 - Each box represents an acid solution at...Ch. 13 - Each box represents an acid solution at...Ch. 13 - Prob. 101QAPCh. 13 - You are asked to determine whether an unknown...Ch. 13 - What is the pH of a 0.020 M solution of H2SO4? You...Ch. 13 - Prob. 104QAPCh. 13 - What is the pH of a solution obtained by mixing...Ch. 13 - A solution is made up of 273 mL of 0.164 M HNO3...Ch. 13 - What is the freezing point of vinegar, which is an...Ch. 13 - Prob. 108QAPCh. 13 - Consider two weak acids, HA (MM=138g/mol)and HB...Ch. 13 - Consider an aqueous solution of a weak base, NaB...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- What is the freezing point of vinegar, which is an aqueous solution of 5.00% acetic acid, HC2H3O2, by mass (d=1.006g/cm3)?arrow_forwardWhich of the diagrams in Problem 10-135 represents the substance that is the weakest electrolyte?arrow_forwardWhat is the freezing point of 0.92 M aqueous acetic acid? The density of this solution is 1.008 g/cm3.arrow_forward
- An aqueous solution of formic acid, that is 1.00 percent by weight formic acid, has a density of 1.0006 g/mL. A student determines that the freezing point of this solution is -0.418 °C. Based on the observed freezing point, what is the percent ionization of the acid and the value of Ka? Kf for H2O is 1.86 °C/m. % ionized = % Ka =arrow_forwardConsider the following chemical equilibrium for the weak base CN in water: CN- (aq) + H₂O(1) = HCN (aq) + OH(aq). Which of the following statements is correct when more water is evaporated from system? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b C d pH will go up; [OH-] will go up; net amount of OH will go up pH will go down; [OH-]will go up; net amount of OH will go down pH will go down; [OH-]will go down; net amount of OH will go down pH will go up; [OH-] will go up; net amount of OH will go downarrow_forwardCH3CH2CO2H , Ką = 1.3 x 105 CH3CH2CO2 , Kp = 7.7 x 10-10 F, Kp = 1.4 x 10-11 HF , Ką = 7.2 x 10-4 For the reaction between propanoic acid (CH3CH2CO2H) and a solution containing fluoride ions (F"): (a) The name of the conjugate base produced is (b) The name of the conjugate acid produced is (c) The reaction is favoured (write 'reactant' or 'product'), because the reactants are the (write 'weaker' or 'stronger') set of acid and base.arrow_forward
- Consider the following data on some weak acids and weak bases: acid base Ка K, name formula name formula -4 6.8 x 10 ethylamine C,H,NH, 6.4× 10 -4 hydrofluoric acid HF HCH,CO2 1.8 ×x 10 CH;N |1.7× 10 -5 acetic acid pyridine 1.7 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 М KI choose one 0.1 M NaF choose one 0.1 М C2HsNHзBr choose one 0.1 M C5H5NHCI choose onearrow_forwardA chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL density and mix it with 12.305 g of solid sodium acetate, CH₃COONa (molar mass: 82.0343g/mol) and prepare an aqueous solution of 1.0 L by adding required amount of water. (Acidity constant of CH₃COOH is 1.8x10⁻⁵) a) What is the pH of such solution?b) What would the pH of the solution be if 0.020 mol NaOH added?c) What would the pH of the solution be if 0.15 mol NaOH added to the solution in a?d) What would the pH of the solution be if 0.17 mol NaOH added to the solution in a? e) What would the pH of the solution be if 0.020 mol HCl added to the solution in a? f) What would the pH of the solution be if 0.15 mol HCl added to the solution in a?g) What would the pH of the solution be if 0.17 mol HCl added to the solution in a?arrow_forwardA chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL density and mix it with 12.305 g of solid sodium acetate, CH₃COONa (molar mass: 82.0343g/mol) and prepare an aqueous solution of 1.0 L by adding required amount of water. (Acidity constant of CH₃COOH is 1.8x10⁻⁵) 1) What is the pH of such solution? 2)What would the pH of the solution be if 0.17 mol NaOH added to the solution in 1? 3)What would the pH of the solution be if 0.020 mol HCl added to the solution in 1? 4)What would the pH of the solution be if 0.15 mol HCl added to the solution in 1? 5)What would the pH of the solution be if 0.17 mol HCl added to the solution in 1?arrow_forward
- A chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL density and mix it with 12.305 g of solid sodium acetate, CH₃COONa (molar mass: 82.0343g/mol) and prepare an aqueous solution of 1.0 L by adding required amount of water. (Acidity constant of CH₃COOH is 1.8x10⁻⁵) What would the pH of the solution be if 0.020 mol HCl added to the solution in a? What would the pH of the solution be if 0.15 mol HCl added to the solution in a? What would the pH of the solution be if 0.17 mol HCl added to the solution in a?.arrow_forwardA chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL density and mix it with 12.305 g of solid sodium acetate, CH₃COONa (molar mass: 82.0343g/mol) and prepare an aqueous solution of 1.0 L by adding required amount of water. (Acidity constant of CH₃COOH is 1.8x10⁻⁵) a) What is the pH of such solution?. Single line text.arrow_forwardA chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL density and mix it with 12.305 g of solid sodium acetate, CH₃COONa (molar mass: 82.0343g/mol) and prepare an aqueous solution of 1.0 L by adding required amount of water. (Acidity constant of CH₃COOH is 1.8x10⁻⁵) 1) What is the pH of such solution? 2)What would the pH of the solution be if 0.020 mol NaOH added? 3)What would the pH of the solution be if 0.15 mol NaOH added to the solution in a? 4)What would the pH of the solution be if 0.17 mol NaOH added to the solution in a? 5)What would the pH of the solution be if 0.020 mol HCl added to the solution in a? 6)What would the pH of the solution be if 0.15 mol HCl added to the solution in a? 7)What would the pH of the solution be if 0.17 mol HCl added to the solution in a?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
General Chemistry - Standalone book (MindTap Cour...
Chemistry
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Cengage Learning
General, Organic, and Biological Chemistry
Chemistry
ISBN:9781285853918
Author:H. Stephen Stoker
Publisher:Cengage Learning
General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY