MASTERING CHEMISTY NVCC ACCESS CODE
MASTERING CHEMISTY NVCC ACCESS CODE
1st Edition
ISBN: 9780136444459
Author: Tro
Publisher: PEARSON
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Chapter 22, Problem 86E

Many aqueous solutions of complex ions display brilliant colors that depend on the identities of the metal ion and ligand(s). Some ligands bind selectively to certain metal ions and produce a complex ion with characteristic colors. These distinctive complex ions serve as qualitative indicators of the presence of particular metal ions. For example, Fe3+is identified by the rapid formation of the intensely colored pentaaquathiocyanatoiron(III) complex ion. [Fe(H2O)5SCN]2+, when thiocyanate, SCN-,is added to a solution containing hexaaquairon(III), [Fe(H2O)6]3+, according to the balanced chemical equation shown here:

Chapter 22, Problem 86E, Many aqueous solutions of complex ions display brilliant colors that depend on the identities of the , example 1

Examine the absorption spectrum of an aqueous solution of [Fe(H2O)5SCN]2+ shown here and answer the questions.

Chapter 22, Problem 86E, Many aqueous solutions of complex ions display brilliant colors that depend on the identities of the , example 2
Absorption spectrum of [Fe(H2O)5SCN]2+

  1. Based on the spectrum, what is the color of an [Fe(H2O)5SCN]2+ solution?

  • Calculate the crystal field splitting energy, Δ, of [Fe(H2O)5SCN]2+ in kJ/mol

  • The hexaaquairon(III) complex ion,

    • [Fe(H2O)6]3+, Produces a pale violet aqueous solution. Is the crystal field splitting energy, Δ, of [Fe(H2O)6]3+ smaller or larger than the Δ of [Fe(H2O)5SCN]2+?

  • On the basis of your answer to parts b and c, compare the crystal field strengths of water and thiocyanate ligands.

  • The complex ion hexacyanoferrate(III).

    • [Fe(CN)6]3-, is red in aqueous solution. What can you conclude about the relative crystal field splitting energies of [Fe(CN)6]3- and [Fe(H2O)5SCN]2+?

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    Chapter 22 Solutions

    MASTERING CHEMISTY NVCC ACCESS CODE

    Ch. 22 - When a transition metal atom forms an ion, which...Ch. 22 - Explain why transition metals exhibit multiple...Ch. 22 - Why is the +2 oxidation state so common for...Ch. 22 - Explain why atomic radii of elements in the third...Ch. 22 - Gold is the most electronegative transition metal....Ch. 22 - Prob. 6ECh. 22 - Prob. 7ECh. 22 - Explain the differences between each pair of...Ch. 22 - Prob. 9ECh. 22 - Prob. 10E
    Ch. 22 - Prob. 11ECh. 22 - Prob. 12ECh. 22 - Prob. 13ECh. 22 - Prob. 14ECh. 22 - Prob. 15ECh. 22 - Prob. 16ECh. 22 - Prob. 17ECh. 22 - Write the ground state electron configuration for...Ch. 22 - Determine the highest possible oxidation state for...Ch. 22 - Prob. 20ECh. 22 - Prob. 21ECh. 22 - Prob. 22ECh. 22 - Prob. 23ECh. 22 - Prob. 24ECh. 22 - Prob. 25ECh. 22 - Prob. 26ECh. 22 - Prob. 27ECh. 22 - Write the formula and the name of each complex ion...Ch. 22 - Prob. 29ECh. 22 - Prob. 30ECh. 22 - Prob. 31ECh. 22 - Prob. 32ECh. 22 - Prob. 33ECh. 22 - Prob. 34ECh. 22 - Prob. 35ECh. 22 - Prob. 36ECh. 22 - Prob. 37ECh. 22 - Prob. 38ECh. 22 - Prob. 39ECh. 22 - Prob. 40ECh. 22 - Prob. 41ECh. 22 - Prob. 42ECh. 22 - Prob. 43ECh. 22 - Prob. 44ECh. 22 - Prob. 45ECh. 22 - Prob. 46ECh. 22 - Prob. 47ECh. 22 - Prob. 48ECh. 22 - Prob. 49ECh. 22 - Prob. 50ECh. 22 - Prob. 51ECh. 22 - Prob. 52ECh. 22 - Prob. 53ECh. 22 - Prob. 54ECh. 22 - Prob. 55ECh. 22 - Prob. 56ECh. 22 - Prob. 57ECh. 22 - Most of the second-row transition metals do not...Ch. 22 - Prob. 59ECh. 22 - Prob. 60ECh. 22 - Prob. 61ECh. 22 - Prob. 62ECh. 22 - Prob. 63ECh. 22 - Prob. 64ECh. 22 - Hexacyanomanganate(III) ion is a low-spin complex....Ch. 22 - Prob. 66ECh. 22 - Prob. 67ECh. 22 - Prob. 68ECh. 22 - Prob. 69ECh. 22 - Prob. 70ECh. 22 - Prob. 71ECh. 22 - Prob. 72ECh. 22 - Prob. 73ECh. 22 - Calculate the solubility of Zn(OH)2(s) in 2.0 M...Ch. 22 - Prob. 75ECh. 22 - Prob. 76ECh. 22 - Prob. 77ECh. 22 - Prob. 78ECh. 22 - Prob. 79ECh. 22 - Prob. 80ECh. 22 - Have each group member choose a row of the...Ch. 22 - Prob. 82ECh. 22 - Prob. 83ECh. 22 - Prob. 84ECh. 22 - Prob. 85ECh. 22 - Many aqueous solutions of complex ions display...Ch. 22 - What is the electron configuration of the Cu+ ion?...Ch. 22 - Prob. 2SAQCh. 22 - Prob. 3SAQCh. 22 - Prob. 4SAQCh. 22 - Prob. 5SAQCh. 22 - Prob. 6SAQCh. 22 - Prob. 7SAQCh. 22 - Estimate the crystal field splitting energy (in...Ch. 22 - Use crystal field theory to determine the number...Ch. 22 - Prob. 10SAQ
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