Concept explainers
Carbon monoxide is toxic because it binds more strongly to iron in hemoglobin (Hb) than does O2. Consider the following reactions and approximate standard free energy changes:
Using these data, estimate the equilibrium constant value at 25°C for the following reaction:
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Chapter 20 Solutions
Chemistry: An Atoms First Approach
- Platinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forwardThe transition metals form a class of compounds called metal carbonyls, an example of which is the tetrahedral complex Ni(CO)4. Given the following thermodynamic data (at 298 K): (a) Calculate the equilibrium constant for the formation of Ni(CO)4(g) from nickel metal and CO gas. (b) Is the reaction of Ni(s) and CO(g) product- or reactant-favored at equilibrium? (c) Is the reaction more or less product-favored at higher temperatures? How could this reaction be used in the purification of nickel metal?arrow_forwardTwo different compounds are known with the formula Pd(py)2Cl2, but there is only one compound with the formula Zn(py)2Cl2. The symbol py is for pyridine, a mono-dentate ligand. Explain the differences in the Pd and Zncompounds.arrow_forward
- Write the state of hybridisation, the shape and the magnetic behaviour of the following complex entities: (i) [Cr(NH3)4Cl2] Cl (ii) [Co(en)3] Cl3 (iii) K2[Ni(CN)4]arrow_forwardIs bis(oxalato)platinate(II) a diamagnetic square planar complex? Yes or no? How about at the start of an electrochemical reaction, is the cell potential (Ecell) of a concentration cell always zero? Yes or no?arrow_forwardThe ionization constant Ka for nitrous acid is 4.6x10⁻⁴. What are the the pKa for nitrous acid and the pH of a 0.1 M solution of this weak acid?arrow_forward
- How many unpaired electrons are there in the low-spin state of Co2+ in an tetrahedral field?arrow_forwardAll of the listed cations form complexes with EDTA, except: A) Mg2+ B) Bi3+ C) K+ D) Ca2+ E) Zn2+arrow_forwardWhat is the process of making chlorine from the electrolysis of sodium chloride called? chlor-alkali process electrolysis reduction oxidation Which of the following ligands has the weakest field strength? Br- C2O42- NH3 NO2- What common acid will react with silicon dioxide? hydrofluoric acid hydrochloric acid sulfuric acid nitric acid What holds the layers of graphite together? London dispersion forces Hydrogen bonds dipole-dipole forces Ionic bonds Which of the following noble gases can form stable compounds? Xenon Krypton Argon Helium Why are group 12 elements considered representative metals? The last electron is an s electron They do not have d electrons The d electrons move to the s shell none of thesearrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning