Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 21, Problem 32E
When an aqueous solution of KCN is added to a solution containing Ni2+ ions, a precipitate forms, which redissolves on addition of more KCN solution. Write reactions describing what happens in this solution. [Hint: CN− is a Brønsted-Lowry base (Kb ≈ 10−5) and a Lewis base.]
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Chapter 21 Solutions
Chemistry
Ch. 21 - What two first-row transition metals have...Ch. 21 - Prob. 2RQCh. 21 - Prob. 3RQCh. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Prob. 7RQCh. 21 - Prob. 8RQCh. 21 - Prob. 9RQCh. 21 - Prob. 10RQ
Ch. 21 - Prob. 1ALQCh. 21 - Prob. 2ALQCh. 21 - Prob. 3ALQCh. 21 - Prob. 4ALQCh. 21 - Prob. 5QCh. 21 - Four different octahedral chromium coordination...Ch. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 13QCh. 21 - Prob. 14QCh. 21 - Which of the following ligands are capable of...Ch. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - What is the maximum number of unpaired d electrons...Ch. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 22QCh. 21 - Prob. 23ECh. 21 - Prob. 24ECh. 21 - Prob. 25ECh. 21 - Prob. 26ECh. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Prob. 30ECh. 21 - Prob. 31ECh. 21 - When an aqueous solution of KCN is added to a...Ch. 21 - Consider aqueous solutions of the following...Ch. 21 - A coordination compound of cobalt(III) contains...Ch. 21 - Prob. 35ECh. 21 - Prob. 36ECh. 21 - Prob. 37ECh. 21 - Prob. 38ECh. 21 - Prob. 39ECh. 21 - Give formulas for the following complex ions. a....Ch. 21 - Prob. 41ECh. 21 - Prob. 42ECh. 21 - Prob. 43ECh. 21 - Amino acids can act as ligands toward transition...Ch. 21 - Prob. 45ECh. 21 - Prob. 46ECh. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - Prob. 49ECh. 21 - Prob. 50ECh. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Prob. 53ECh. 21 - Prob. 54ECh. 21 - The CrF64 ion is known to have four unpaired...Ch. 21 - Prob. 56ECh. 21 - Prob. 57ECh. 21 - The complex ion Fe(CN)63 is paramagnetic with one...Ch. 21 - Prob. 59ECh. 21 - Prob. 60ECh. 21 - Prob. 61ECh. 21 - Prob. 62ECh. 21 - The wavelength of absorbed electromagnetic...Ch. 21 - The complex ion NiCL42 has two unpaired electrons,...Ch. 21 - How many unpaired electrons are present in the...Ch. 21 - The complex ion PdCl42is diamagnetic. Propose a...Ch. 21 - Prob. 67ECh. 21 - Prob. 68ECh. 21 - Prob. 69ECh. 21 - Prob. 70ECh. 21 - Silver is sometimes found in nature as large...Ch. 21 - Prob. 72ECh. 21 - Prob. 73AECh. 21 - Prob. 74AECh. 21 - Prob. 75AECh. 21 - The compound cisplatin, Pt(NH3)2Cl2, has been...Ch. 21 - Prob. 77AECh. 21 - Prob. 78AECh. 21 - Prob. 79AECh. 21 - Prob. 80AECh. 21 - Prob. 81AECh. 21 - Name the following coordination compounds. a....Ch. 21 - Prob. 83AECh. 21 - Prob. 84AECh. 21 - Prob. 85AECh. 21 - Prob. 86AECh. 21 - Carbon monoxide is toxic because it binds more...Ch. 21 - Prob. 88AECh. 21 - Prob. 89CWPCh. 21 - Which of the following molecules exhibit(s)...Ch. 21 - Prob. 91CWPCh. 21 - The following table indicates the number of...Ch. 21 - Prob. 93CWPCh. 21 - Which of the following statement(s) is( are) true?...Ch. 21 - Consider the following complex ion, where A and B...Ch. 21 - Consider the pseudo-octahedral complex ion of...Ch. 21 - Prob. 97CPCh. 21 - Prob. 98CPCh. 21 - Chelating ligands often form more stable complex...Ch. 21 - Prob. 100CPCh. 21 - Prob. 101CPCh. 21 - Prob. 102CPCh. 21 - Sketch and explain the most likely crystal field...Ch. 21 - Ethylenediaminetetraacetate (EDTA4 ) is used as a...Ch. 21 - Prob. 105CPCh. 21 - The ferrate ion, FeO42, is such a powerful...Ch. 21 - Ammonia and potassium iodide solutions are added...Ch. 21 - a. In the absorption spectrum of the complex ion...Ch. 21 - There are three salts that contain complex ions of...
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- For [Co(NH3)6]3+ , Kf has a value of 5.00 × 1031. Calculate the concentration of free, uncomplexed Co3+ ions in a solution that contains a total of 0.160 mol/L cobalt III ions and an equilibrium concentration of 0.50 M NH3.arrow_forwardConsider the insoluble compound cobalt(II) carbonate , CoCO3 . The cobalt(II) ion also forms a complex with ammonia . Write a balanced net ionic equation to show why the solubility of CoCO3 (s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction.For Co(NH3)62+ , Kf = 7.7×104 . Be sure to specify states such as (aq) or (s).arrow_forwardConsider the insoluble compound cobalt(II) carbonate , CoCO3 . The cobalt(II) ion also forms a complex with ammonia . Write a balanced net ionic equation to show why the solubility of CoCO3 (s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction.For Co(NH3)62+ , Kf = 7.7×104 . Be sure to specify states such as (aq) or (s). + + K =arrow_forward
- Consider the following expression for the equilibrium constant that represents the dissociation of iodic acid into hydronium and iodate ions. Ka [H3O+] [103] [HIO3] = = 0.161 When 176 g of iodic acid is dissolved in water to give an aqueous solution with a final volume of 1.00 L. Calculate the % dissociation of iodic acid to form iodate anions. The molar mass of iodic acid is 175.91 g mol-¹. a. 0.161% b.16.1% OC. 32.8% Od. 40.1% e. 83.9%arrow_forwardConsider the insoluble compound cobalt(II) carbonate, CoCO3. The cobalt(II) ion also forms a complex with ammonia. Write a balanced net ionic equation to show why the solubility of CoCO3 (s) increases in the presence of ammonia and calculate the equilibrium constant for this reaction. For Co(NH3)62+, Kf = 1.3x105. Be sure to specify states such as (aq) or (s). Knet =arrow_forwardWrite the equilibrium expression (K), for the following chemical reaction: 2 NaHCO3 (s) – Na2CO3 (S) + CO2 (g) + H2O (g) [CO2] [H2O] K = 1 1 K [CO] [H2O] (CO2] [H2O] [Na2CO3] K = %3D [NAHCO3]2 NAHCO3]2 K = [CO2] [H2O] [Na2CO3]arrow_forward
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- 1. What mass of solid Lanthanum (III) oxalate nonahydrate { La2 ( C2O4 )3 ∙ 9 H2O } can be obtained from 650 mL of 0.0170 M aqueous solution of LaCl3 by adding a stoichiometric amount of sodium oxalate? 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric acid.2Al + 6HCl → Al2Cl6 + 3H2 3. What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of HCl?Zn +2HCl → ZnCl2 + H2 4. How many milliliters of 0.200 M NH2OH are needed to react with 12.0 mL of 0.550 M FeCl3?FeCl3 + 3NH4OH Fe(OH)3 + 3NH4Clarrow_forwardIn order to form [Ni(CN),2], 5.20 mol of KCN are added to 600. mL of 0.10OM Ni(NO3)2. Assuming the total volume stays at 600. mL, calculate the equilibrium concentration of Ni2* in that solution. [Kf of Ni(CN),1 = 1.0 x 1031) O 9.3 x 1031 O 14 x 10 34 0 44 x 1045 O 21x 10 36 O 67 x 1024arrow_forwardA solution containing copper(II) nitrate (aq) first has some aqueous ammonia added to it. A white precipitate forms. Addition of more aqueous ammonia results in the precipitate dissolving, forming a clear dark blue solution. Write reactions for each step in the process. Hints: Ksp Cu(OH)2 = 2.2 X 10-20; Kb NH3 = 1.8 X 10-5 and Kf Cu(NH3)42+ = 1.1 X 1013arrow_forward
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