CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT
CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT
2nd Edition
ISBN: 9781260592320
Author: Burdge
Publisher: MCG
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Chapter 22, Problem 22.77QP
Interpretation Introduction

Interpretation: The concentration of lead ion [Pb]2+ in the given equilibrium to be calculated.

Concept Introduction:

Spectrochemical series: The list of ligands arranged in an ascending order of (Δ) (the splitting of d-orbitals in presence of various ligands).

I-<Br-<SCN-<Cl-<S2-<F-<OH-<O2-<H2O<NCS-<edta4-<NH3<  en<NO2-<CN-<COweak-fieldincreasing(Δ)strong-fieldligandsligands

Crystal field splitting: The energy gap between the splitting of d-orbitals of the metal ion in presence of ligands is known as the crystal field splitting (Δ) . The magnitude of (Δ) is depends on the nature of metal ions and the ligands.

Equilibrium constant: The ratio of equilibrium concentration of products by the equilibrium concentration of the reactants.

Kf=[Products]eq[reactants]eq

To Identify: The concentration of lead ion [Pb(EDTA)2-] in the given equilibrium to be calculated.

Expert Solution & Answer
Check Mark

Answer to Problem 22.77QP

The calculated equilibrium concentration of [Pb(EDTA)2-] is 0.0 M

Explanation of Solution

Find the concentration of lead ion [Pb(EDTA)2-] .

[Pb]2++EDTA4-[Pb(EDTA)]2-Initial(M):1.0×10-32.0×10-30Change(M):-x-x+x_Equilibrium(M):    1.0×10-3-x2.0×10-3-xx_Kf=[Pb(EDTA)2-]eq[Pb]2+eq [EDTA4-]eq=1.0×10181.0×1018=x(1.0×10-3-x)(2.0×10-3-x)1.0×1018=x(2.0×10-6)-(3.0×10-3)x+x20=(1.0×1018)x2-(3.0×1015)x+(2.0×1012)use the quadratic equation to solve x:x=-b±b2-4ac2a=(3.0×1015)±(1.0×1015)(2.0×1018)=2.0×10-3or1.0×10-3

The equilibrium concentration of [Pb]2+ is 1.0×10-3-x , the first answer is not possible. Thus, the calculated equilibrium concentration of [Pb(EDTA)2-] is 0.0 M

Conclusion
The concentration of lead ion [Pb]2+ in the given equilibrium is calculated.

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Chapter 22 Solutions

CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT

Ch. 22.1 - Prob. 3PPBCh. 22.1 - Prob. 3PPCCh. 22.1 - Prob. 22.1.1SRCh. 22.1 - Prob. 22.1.2SRCh. 22.1 - Prob. 22.1.3SRCh. 22.1 - Prob. 22.1.4SRCh. 22.3 - Prob. 22.4WECh. 22.3 - Prob. 4PPACh. 22.3 - Prob. 4PPBCh. 22.3 - Prob. 4PPCCh. 22.3 - Prob. 22.3.1SRCh. 22.3 - Prob. 22.3.2SRCh. 22 - What distinguishes a transition metal from a main...Ch. 22 - Prob. 22.2QPCh. 22 - Prob. 22.3QPCh. 22 - Without referring to the text, write the...Ch. 22 - Write the electron configurations of the following...Ch. 22 - Prob. 22.6QPCh. 22 - Prob. 22.7QPCh. 22 - Prob. 22.8QPCh. 22 - Describe the interaction between a donor atom and...Ch. 22 - Prob. 22.10QPCh. 22 - Prob. 22.11QPCh. 22 - Prob. 22.12QPCh. 22 - Prob. 22.13QPCh. 22 - What are the systematic names for the following...Ch. 22 - Prob. 22.15QPCh. 22 - Write the formulas for each of the following ions...Ch. 22 - Prob. 22.17QPCh. 22 - Prob. 22.18QPCh. 22 - Prob. 22.19QPCh. 22 - Prob. 22.20QPCh. 22 - Prob. 22.21QPCh. 22 - Prob. 22.22QPCh. 22 - Prob. 22.23QPCh. 22 - Prob. 22.24QPCh. 22 - Prob. 22.25QPCh. 22 - Briefly describe crystal field theory.Ch. 22 - Prob. 22.27QPCh. 22 - What is the origin of color in a coordination...Ch. 22 - Prob. 22.29QPCh. 22 - Prob. 22.30QPCh. 22 - Prob. 22.31QPCh. 22 - Prob. 22.32QPCh. 22 - The absorption maximum for the complex ion...Ch. 22 - Prob. 22.34QPCh. 22 - Prob. 22.35QPCh. 22 - Prob. 22.36QPCh. 22 - Prob. 22.37QPCh. 22 - Prob. 22.38QPCh. 22 - Prob. 22.39QPCh. 22 - Prob. 22.40QPCh. 22 - The [Fe(CN)6]3 complex is more labile than the...Ch. 22 - Prob. 22.42QPCh. 22 - Prob. 22.43QPCh. 22 - Prob. 22.44QPCh. 22 - Prob. 22.45QPCh. 22 - Prob. 22.46QPCh. 22 - Prob. 22.47QPCh. 22 - Prob. 22.48QPCh. 22 - Prob. 22.49QPCh. 22 - Prob. 22.50QPCh. 22 - Prob. 22.51QPCh. 22 - Prob. 22.52QPCh. 22 - Prob. 22.53QPCh. 22 - Prob. 22.54QPCh. 22 - A student in 1895 prepared three coordination...Ch. 22 - Prob. 22.56QPCh. 22 - Prob. 22.57QPCh. 22 - Prob. 22.58QPCh. 22 - Prob. 22.59QPCh. 22 - Prob. 22.60QPCh. 22 - Prob. 22.61QPCh. 22 - Hydrated Mn2+ ions are practically colorless (see...Ch. 22 - Which of the following hydrated cations are...Ch. 22 - Prob. 22.64QPCh. 22 - Prob. 22.65QPCh. 22 - Prob. 22.66QPCh. 22 - Prob. 22.67QPCh. 22 - Prob. 22.68QPCh. 22 - Prob. 22.69QPCh. 22 - Prob. 22.70QPCh. 22 - Commercial silver-plating operations frequently...Ch. 22 - Prob. 22.72QPCh. 22 - Prob. 22.73QPCh. 22 - Prob. 22.74QPCh. 22 - Prob. 22.75QPCh. 22 - Prob. 22.76QPCh. 22 - Prob. 22.77QPCh. 22 - Prob. 22.78QPCh. 22 - Prob. 22.79QPCh. 22 - Prob. 22.80QP
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