Problem 15.1QP: Which of the following are strong acids? Which are weak acids? a HC2H3O2; b HClO; c HCl; d HNO3; e... Problem 15.2QP: Describe any thermochemical (heat of reaction) evidence for the Arrhenius concept. Problem 15.3QP Problem 15.4QP Problem 15.5QP: Write an equation in which H2PO3 acts as an acid and another in which it acts as a base. Problem 15.6QP: Describe four ways in which the BrnstedLowry concept expands on the Arrhenius concept. Problem 15.7QP Problem 15.8QP: Explain why an acidbase reaction favors the weaker acid. Problem 15.9QP: Give two important factors that determine the strength of an acid. How does an increase in each... Problem 15.10QP Problem 15.11QP Problem 15.12QP Problem 15.13QP Problem 15.14QP Problem 15.15QP: The conjugate base of hydrofluoric acid dissolved in water is: a F b OH c H3O d HF e F2 Problem 15.16QP: In the following reaction, identify the Lewis acid. Fe3+(aq)+6CN(aq)Fe(CN)63(aq) a CN b Fe(CN)63 c... Problem 15.17QP: Calculate the hydronium-ion concentration at 25C in a 1.3 102 M Ba(OH)2 solution. a 1.3 102 M b 7.7... Problem 15.18QP: The pH of a solution is 9.55 at 25C What is the hydroxide-ion concentration in the solution? a 2.8 ... Problem 15.19QP: Acids You make a solution by dissolving 0.0010 mol of HCl in enough water to make 1.0 L of solution.... Problem 15.20QP: Strong Acids, Weak Acids, and pH Two 0.10-mol samples of the hypothetical monoprotic acids HA(aq)... Problem 15.21QP Problem 15.22QP Problem 15.23QP Problem 15.24QP: Compare the structures of HNO2 and H2CO3. Which would you expect to be the stronger acid? Explain... Problem 15.25QP Problem 15.26QP Problem 15.27QP: A strong monoprotic acid, with the molecular structure , is dissolved in a beaker of water. Which of... Problem 15.28QP: A weak acid, HA, is dissolved in water. Which one of the following beakers represents the resulting... Problem 15.29QP: Write the balanced reaction of hydroxide ion with hydrofluoric acid, HF, to form fluoride ion and... Problem 15.30QP: Write the balanced reaction of hypobromous acid, HOBr, with water to form hydronium ion and the... Problem 15.31QP: Give the conjugate base to each of the following species regarded as acids. a HPO42 b H2S c HNO2 d... Problem 15.32QP: Give the conjugate base to each of the following species regarded as acids: a HSO4 b PH4 c HSe d... Problem 15.33QP: Give the conjugate acid to each of the following species regarded as bases. a ClO b AsH3 c H2PO4 d... Problem 15.34QP: Give the conjugate acid to each of the following species regarded as bases. a HS b NH2 c BrO2 d N2H4 Problem 15.35QP: For the following reactions, label each species as an acid or a base. Indicate the species that are... Problem 15.36QP: For the following reactions, label each species as an acid or a base. Indicate the species that are... Problem 15.37QP: The following shows ball-and-stick models of the reactants in a Lewis acidbase reaction. Write the... Problem 15.38QP: The following shows ball-and-stick models of the reactants in a Lewis acidbase reaction. Write the... Problem 15.39QP: Complete each of the following equations. Then write the Lewis formulas of the reactants and... Problem 15.40QP: Complete each of the following equations. Then write the Lewis formulas of the reactants and... Problem 15.41QP: In the following reactions, identify each reactant as a Lewis acid or a Lewis base. a... Problem 15.42QP: In the following reactions, label each reactant as a Lewis acid or a Lewis base. a BeF2+2FBeF42 b... Problem 15.43QP: Natural gas frequently contains hydrogen sulfide, H2S. H2S is removed from natural gas by passing it... Problem 15.44QP: Coal and other fossil fuels usually contain sulfur compounds that produce sulfur dioxide, SO2, when... Problem 15.45QP: Complete the following equation. Using Table 15.2, predict whether you would expect the reaction to... Problem 15.46QP: Complete the following equation. Using Table 15.2, predict whether you would expect the reaction to... Problem 15.47QP: Use Table 15.2 to decide whether the species on the left or those on the right are favored by the... Problem 15.48QP: Use Table 15.2 to decide whether the species on the left or those on the right are favored by the... Problem 15.49QP Problem 15.50QP: In the following reaction of tetrafluoroboric acid, HBF4, with the acetate ion, C2H3O2, the... Problem 15.51QP: For each of the following pairs, give the stronger acid. Explain your answer. a H2S, HS b H2SO3,... Problem 15.52QP: Order each of the following pairs by acid strength, giving the weaker acid first. Explain your... Problem 15.53QP: What are the concentrations of H3O+ and OH in each of the following? a 1.2 M HBr b 0.32 M KOH c... Problem 15.54QP: What are the concentrations of H3O+ and OH in each of the following? a 1.55 M NaOH b 0.15 M Sr(OH)2... Problem 15.55QP: A solution of hydrochloric acid is 0.059 M HCl. What in the hydronium-ion concentration at 25C? What... Problem 15.56QP: A solution is 0.030 M HNO3 (nitric acid). What is the hydronium-ion concentration at 25C? What is... Problem 15.57QP: What are the hydronium-ion and the hydroxide-ion concentrations of a solution at 25C that is 0.0085... Problem 15.58QP: A saturated solution of magnesium hydroxide is 3.2 104 M Mg(OH)2. What are the hydronium-ion and... Problem 15.59QP: The following are solution concentrations. Indicate whether each solution is acidic, basic, or... Problem 15.60QP: The following are solution concentrations. Indicate whether each solution is acidic, basic, or... Problem 15.61QP: A shampoo solution at 25C has a hydroxide-ion concentration of 1.5 109 M. Is the solution acidic,... Problem 15.62QP: An antiseptic solution at 25C has a hydroxide-ion concentration of 8.4 105 M. Is the solution... Problem 15.63QP: Which of the following pH values indicate an acidic solution at 25C? Which are basic and which are... Problem 15.64QP: Which of the following pH values indicate an acidic solution at 25C? Which are basic and which are... Problem 15.65QP: For each of the following, state whether the solution at 25C is acidic, neutral, or basic: a A... Problem 15.66QP Problem 15.67QP: Obtain the pH corresponding to the following hydronium-ion concentrations a 1.0 108 M b 5.0 1012 M... Problem 15.68QP: Obtain the pH corresponding to the following hydronium-ion concentrations. a 1.0 104 M b 3.2 1010... Problem 15.69QP: A sample of vinegar has a hydronium-ion concentration of 3.0 103 M. What is the pH of the vinegar? Problem 15.70QP: Some lemon juice has a hydronium-ion concentration of 5.0 103 M. What is the pH of the lemon juice? Problem 15.71QP: Obtain the pH corresponding to the following hydroxide-ion concentrations. a 4.35 109 M b 7.3 103... Problem 15.72QP: Obtain the pH corresponding to the following hydroxide-ion concentrations. a 4.83 1011 M b 3.2 105... Problem 15.73QP: A solution of washing soda (sodium carbonate, Na2CO3) has a hydroxide-ion concentration of 0.0040 M.... Problem 15.74QP: A solution of lye (sodium hydroxide, NaOH) has a hydroxide-ion concentration of 0.050 M. What is the... Problem 15.75QP: The pH of a cup of coffee (at 25C) was found to be 5.12 What is the hydronium-ion concentration? Problem 15.76QP: A wine was tested for acidity, and its pH was found to be 3.85 at 25C. What is the hydronium-ion... Problem 15.77QP: A detergent solution has a pH of 11.80 at 25C. What is the hydroxide-ion concentration? Problem 15.78QP: Morphine is a narcotic that is used to relieve pain. A solution of morphine has a pH of 9.61 at 25C.... Problem 15.79QP: A 1.00-L aqueous solution contained 5.80 g of sodium hydroxide, NaOH. What was the pH of the... Problem 15.80QP: A 1.00-L aqueous solution contained 6.78 g of barium hydroxide, Ba(OH)2. What was the pH of the... Problem 15.81QP: A certain sample of rainwater gives a yellow color with methyl red and a yellow color with... Problem 15.82QP: A drop of thymol blue gave a yellow color with a solution of aspirin. A sample of the same aspirin... Problem 15.83QP: Identify each of the following as an acid or a base in terms of the Arrhenius concept. Give the... Problem 15.84QP: Which of the following substances are acids in terms of the Arrhenius concept? Which are bases? Show... Problem 15.85QP: Write a reaction for each of the following in which the species acts as a Brnsted acid. The... Problem 15.86QP: Write a reaction for each of the following in which the species acts as a Brnsted base. The... Problem 15.87QP Problem 15.88QP Problem 15.89QP Problem 15.90QP Problem 15.91QP Problem 15.92QP: List the following compounds in order of increasing acid strength: HBrO2, HClO2, HBrO. Problem 15.93QP: A solution is 0.18 M KOH. What are the concentrations of H3O+ and OH in this solution? Problem 15.94QP: A solution is 0.25 M Sr(OH)2. What are the concentrations of H3O+ and OH in this solution? Problem 15.95QP Problem 15.96QP: A sample of lemon juice has a hydronium-ion concentration equal to 2.6 102 M. What is the pH of... Problem 15.97QP Problem 15.98QP: A sample of grape juice has a pH of 4.15. What is the hydroxide-ion concentration of this solution? Problem 15.99QP: A 4.640-g sample of a mixture of sodium hydrogen carbonate and potassium chloride is dissolved in... Problem 15.100QP: A 2.500-g sample of a mixture of sodium carbonate and sodium chloride is dissolved in 25.00 mL of... Problem 15.101QP Problem 15.102QP: The dihydrogen phosphate ion has the ability to act as an acid in the presence of a base and as a... Problem 15.103QP Problem 15.104QP Problem 15.105QP Problem 15.106QP: Show how methylamine, CH3NH2, is a BrnstedLowry base. Is methylamine also a Lewis base? Explain. Problem 15.107QP Problem 15.108QP Problem 15.109QP Problem 15.110QP Problem 15.111QP Problem 15.112QP: Hydrazine, N2H4 (having the structure H2NNH2), and its derivatives have been used as rocket fuels.... Problem 15.113QP Problem 15.114QP: Liquid ammonia undergoes autoionization similar to that of water: NH3(l)+NH3(l)NH4+(l)+NH2(l) How... Problem 15.115QP: Ethanol (ethyl alcohol), CH3CH2OH, can act as a BrnstedLowry acid. Write the chemical equation for... Problem 15.116QP: Ethanol, CH3CH2OH, can undergo auto-ionization. Write the chemical equation for this... Problem 15.117QP: Aluminum chloride, AlCl3, reacts with trimethyl-amine, N(CH3)3. What would you guess to be the... Problem 15.118QP: Consider each of the following pairs of compounds, and indicate which one of each pair is the... Problem 15.119QP: Arrange each of the following in order of increasing acidity. You may need to use a couple of rules... Problem 15.120QP: The following is a table of some of the oxoacids of the halogens. Which acid in the table is the... Problem 15.121QP: Suppose you have 557 mL of 0.0300 M HCl, and you want to make up a solution of HCl that has a pH of... Problem 15.122QP Problem 15.123QP: You want to make up 3.00 L of aqueous hydrochloric acid, HCl(aq), that has a pH of 2.00. How many... Problem 15.124QP Problem 15.125QP Problem 15.126QP: Pure liquid ammonia ionizes in a way similar to that of water. a Write the equilibrium reaction of... Problem 15.127QP: A solution contains 4.25g of ammonia per 250.0 mL of solution. Electrical conductivity measurements... Problem 15.128QP: A solution contains 0.675 g of ethylamine, C2H5NH2, per 100.0 mL of solution. Electrical... Problem 15.129QP Problem 15.130QP: Hypophosphorous acid, H3PO2, and phosphoric acid, H3PO4, have approximately the same acid strengths.... Problem 15.131QP: Boron trifluoride, BF3, and ammonia, NH3, react to produce BF3: NH3. A coordinate covalent bond is... Problem 15.132QP: Boron trifluoride, BF3, and diethyl ether, (C2H5)2O, react to produce a compound with the formula... format_list_bulleted
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