Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 15, Problem 66IL
The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion.
2 CrO42−(aq) + 2 H3O+(aq) ⇄ CrO72−(aq) + 3 H2O(ℓ)
(a) Explain this experimental observation in terms of Le Chatelier’s principle.
(b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Swimming pool disinfectants produce hypochlorous acid upon dissolution. The weak acid ionizes as follows:
HClO (aq) ⇄ H+ (aq) + ClO‒ (aq) Ka=3.0 x 10 ‒8
As strong oxidizing agents, both acid and its conjugate base kill bacteria. However, too high [HClO] is irritating to swimmers’ eyes and too high [ClO‒] will cause the ions to decompose in sunlight. The recommended pH to circumvent both problems is 7.8. Determine the ratio of the weak acid and its conjugate base at this pH.
Write equilibrium constant expression for the following:Fe2O3 (s) + 3 H2 (l) ⇌ 2 Fe (s) + 3 H2O (g)
Write K expression for the following reaction:
2H2O2(aq) ↔ 2H2O(l) + O2(g)
Chapter 15 Solutions
Chemistry & Chemical Reactivity
Ch. 15.2 - Write the equilibrium constant expression for each...Ch. 15.2 - Answer the following questions regarding the...Ch. 15.3 - A solution is prepared by dissolving 0.050 mol of...Ch. 15.4 - At some temperature. Kc = 33 for the reaction...Ch. 15.4 - The decomposition of PCl5(g) to form PCl3(g) and...Ch. 15.5 - The conversion of oxygen to ozone has a very small...Ch. 15.6 - Equilibrium exists between butane and isobutane...Ch. 15.6 - Anhydrous ammonia is used directly as a...Ch. 15.6 - Prob. 1.2ACPCh. 15.6 - Freezing point depression is one means of...
Ch. 15.6 - Prob. 2.2ACPCh. 15.6 - A 0.64 g sample of the white crystalline dimer (4)...Ch. 15.6 - Predict whether the dissociation of the dimer to...Ch. 15.6 - Prob. 2.5ACPCh. 15 - Write equilibrium constant expressions for the...Ch. 15 - Write equilibrium constant expressions for the...Ch. 15 - Kc = 5.6 1012 at 500 K for the dissociation of...Ch. 15 - The reaction 2 NO2(g) N2O4(g) has an equilibrium...Ch. 15 - A mixture of SO2, O2, and SO3 at 1000 K contains...Ch. 15 - The equilibrium constant Kc, for the reaction 2...Ch. 15 - The reaction PCl5(g) PCl3(g) + Cl2(g) was...Ch. 15 - An equilibrium mixture of SO2, O2, and SO3 at a...Ch. 15 - The reaction C(s) + CO2(g) 2 CO(g) occurs at high...Ch. 15 - Hydrogen and carbon dioxide react at a high...Ch. 15 - A mixture of CO and Cl2 is placed in a reaction...Ch. 15 - You place 0.0300 mol of pure SO3 in an 8.00-L...Ch. 15 - The value of Kc for the interconversion of butane...Ch. 15 - Cyclohexane, C6H12, a hydrocarbon, can isomerize...Ch. 15 - The equilibrium constant for the dissociation of...Ch. 15 - The equilibrium constant, Kc, for the reaction...Ch. 15 - Carbonyl bromide decomposes to carbon monoxide and...Ch. 15 - Iodine dissolves in water, but its solubility in a...Ch. 15 - Which of the following correctly relates the...Ch. 15 - Which of the following correctly relates the...Ch. 15 - Consider the following equilibria involving SO2(g)...Ch. 15 - The equilibrium constant K for the reaction CO2(g)...Ch. 15 - Calculate K for the reaction SnO2(s) + 2 CO(g) ...Ch. 15 - Calculate K for the reaction Fe(s) + H2O(g) ...Ch. 15 - Relationship of Kc and Kp: (a) Kp for the...Ch. 15 - Relationship of Kc and Kp: (a) The equilibrium...Ch. 15 - Dinitrogen trioxide decomposes to NO and NO2, in...Ch. 15 - Kp for the following reaction is 0.16 at 25 C: 2...Ch. 15 - Consider the isomerization of butane with an...Ch. 15 - The decomposition of NH4HS NH4HS(s) NH3(g) +...Ch. 15 - Suppose 0.086 mol of Br2 is placed in a 1.26-L...Ch. 15 - The equilibrium constant for the reaction N2(g) +...Ch. 15 - Kp for the formation of phosgene, COCl2, is 6.5 ...Ch. 15 - The equilibrium constant, Kc, for the following...Ch. 15 - Carbon tetrachloride can be produced by the...Ch. 15 - Equal numbers of moles of H2 gas and I2 vapor are...Ch. 15 - The equilibrium constant for the butane isobutane...Ch. 15 - At 2300 K the equilibrium constant for the...Ch. 15 - Which of the following correctly relates the two...Ch. 15 - Consider the following equilibrium: COBr2(g) ...Ch. 15 - Heating a metal carbonate leads to decomposition....Ch. 15 - Phosphorus pentachloride decomposes at elevated...Ch. 15 - Ammonium hydrogen sulfide decomposes on heating....Ch. 15 - Ammonium iodide dissociates reversibly to ammonia...Ch. 15 - When solid ammonium carbamate sublimes, it...Ch. 15 - In the gas phase, acetic acid exists as an...Ch. 15 - Assume 3.60 mol of ammonia is placed in a 2.00-L...Ch. 15 - The total pressure for a mixture of N2O4 and NO2...Ch. 15 - Kc for the decomposition of ammonium hydrogen...Ch. 15 - Prob. 52GQCh. 15 - A 15-L flask at 300 K contains 6.44 g of a mixture...Ch. 15 - Lanthanum oxalate decomposes when heated to...Ch. 15 - The reaction of hydrogen and iodine to give...Ch. 15 - Sulfuryl chloride, SO2Cl2 is used as a reagent in...Ch. 15 - Hemoglobin (Hb) can form a complex with both O2...Ch. 15 - Limestone decomposes at high temperatures....Ch. 15 - At 1800 K, oxygen dissociates very slightly into...Ch. 15 - Nitrosyl bromide, NOBr, dissociates readily at...Ch. 15 - A Boric acid and glycerin form a complex...Ch. 15 - The dissociation of calcium carbonate has an...Ch. 15 - A sample of N2O4 gas with a pressure of 1.00 atm...Ch. 15 - Prob. 64GQCh. 15 - The photograph below shows what occurs when a...Ch. 15 - The photographs below (a) show what occurs when a...Ch. 15 - Decide whether each of the following statements is...Ch. 15 - Neither PbCl2 nor PbF2 is appreciably soluble in...Ch. 15 - Characterize each of the following as product- or...Ch. 15 - The size of a flask containing colorless N2O4(g)...Ch. 15 - Describe an experiment that would allow you to...Ch. 15 - The chapter opening photograph (page 670) showed...Ch. 15 - Suppose a tank initially contains H2S at a...Ch. 15 - Pure PCl5 gas is placed in a 2.00-L flask. After...
Additional Science Textbook Solutions
Find more solutions based on key concepts
22.102 Write the structures of the cis and tram isomers, if any, for the following compounds:
Chemistry: The Molecular Nature of Matter
Practice Problem 1.22 Which of the following alkenes can exist as cis-trans isomers? Write their structures. Bu...
Organic Chemistry
How could you separate a mixture of the following compounds? The reagents available to you are water, either, 1...
Organic Chemistry
Practice Problem ATTEMPT
Write the rate expressions for each of the following reactions:
(a)
(b)
(c)
Chemistry
The method to determine the volume of a powered solid, liquid and a rock needs to be determined. Concept introd...
Living by Chemistry
Draw a Lewis structure for each covalent molecule. a. HBr b. CH3F c. H2O2 d. N2H4 e. C2H6 f. CH2Cl2
Principles of General, Organic, Biological Chemistry
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
- Actually, the carbon in CO2(g) is thermodynamically unstable with respect to the carbon in calcium carbonate(limestone). Verify this by determining the standardGibbs free energy change for the reaction of lime,CaO(s), with CO2(g) to make CaCO3(s).arrow_forwardComplete each of these reactions by filling in the blanks. Predict whether each reaction is product-favored or reactant-favored, and explain your reasoning. (a) _________ (aq) + Br(aq) NH3(aq) + HBr(aq) (b) CH3COOH(aq) + CN(aq) ________ (aq) + HCN(aq) (c) ________ (aq)+H2O () NH3(aq) + OH(aq)arrow_forwarda Calculate K1, at 25C for phosphoric acid: H3PO4(aq)H+(aq)+H2PO4(aq) b Which thermodynamic factor is the most significant in accounting for the fact that phosphoric acid is a weak acid? Why ?arrow_forward
- The acetate ion, CH3COO–, reacts with water as a weak base: CH3COO–(aq) + H2O(l) ⇄ CH3COOH(aq) + OH–(aq), with K = 5.7 x 10-10 at 25°C. If sodium acetate were dissolved in water to make a 0.35 M solution, what would be the resulting concentration of OH–? (M) (no scientific notation)arrow_forwardAqueous Ammonia Solution (with phenolphthalein) NH3 (aq) + H2O (l) = NH4+1 (aq) + OH-1 (aq) What happens to equilibrium by adding HCl to the solution? The reactants are colorless and products are pink.arrow_forwardWrite the equilibrium constant expression for this reaction: H₂CO3(aq) → 2 H (aq) + CO (aq) Do 8 Ś 0 X ?arrow_forward
- Write the equilibrium-constant expression for the following reaction: 2NO (g) + 2H2 (g) ↔↔ N2 (g) + 2H2O (g)arrow_forwardGiven the two reactions 1. H 2 S(aq)⇌HS − (aq)+H + (aq), K 1 = 9.29×10−8, and2. HS − (aq)⇌S 2− (aq)+H + (aq), K 2= 1.48×10−19,what is the equilibrium constant K final for the following reaction?S 2− (aq)+2H + (aq)⇌H 2 S(aq)arrow_forwardYou are on a new planet and discover a substance, Z2O that undergoes autoionization just like water on Earth. Z2O + Z2O ⇌ Z3O+ + OZ– Through a series of experiments, you determine the equilibrium constant (Kx) for this autoionization reaction at various temperatures. The value of Keq at 25.1ºC is 6.6 x 10-13. What is the pZ of the pure substance at this temperature? (pZ = -log(Z3O+) Report your answer to the hundreths place.arrow_forward
- Iodine molecules react reversibly with iodide ions to produce triiodide ions. I2(aq) + I−(aq) ⇌ I3−(aq)If a solution with the concentrations of I2 and I− both equal to 1.000 × 10−3 M before reaction gives an equilibrium concentration of I2 of 6.61 × 10−4 M, what is the equilibrium constant for the reaction?arrow_forwardWrite the equilibrium constant expression, K, for the following reaction taking place in dilute aqueous solution.ClO- (aq) + H2O (l)HClO (aq) + OH- (aq)arrow_forwardWhat is the equilibrium expression for the following reaction? 2A(aq) + 3B(aq) ⇌ C(s)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
General 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 Learning
Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: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
Principles of Modern Chemistry
Chemistry
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:Cengage Learning
Introduction to Electrochemistry; Author: Tyler DeWitt;https://www.youtube.com/watch?v=teTkvUtW4SA;License: Standard YouTube License, CC-BY