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The solubility product for Pb(Cl)2 is K = 1.60 * 10-5, the solubility product for Pb(F)2 is K = 3.70 * 10-8 , and K for the following reaction is 1.98 * 10-4: Pb(Cl)2 (s) + 2 HF ⇌ PbF2 (s) + 2 H+ + 2Cl- Calculate the dissociation constant for H1)

The solubility product for Pb(Cl)2 is K = 1.60 * 10-5, the solubility product for Pb(F)2 is K = 3.70 * 10-8 , and K for the following reaction is 1.98 * 10-4: Pb(Cl)2 (s) + 2 HF ⇌ PbF2 (s) + 2 H+ + 2Cl- Calculate the dissociation constant for H1)

Chemistry for Engineering Students
Chemistry for Engineering Students
3rd Edition
ISBN:9781285199023
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter1: Introduction To Chemistry
Section: Chapter Questions
Problem 1.77PAE
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The solubility product for Pb(Cl)2 is K = 1.60 * 10-5, the solubility product for
Pb(F)2 is K = 3.70 * 10-8 , and K for the following reaction is 1.98 * 10-4:
Pb(Cl)2 (s) + 2 HF ⇌ PbF2 (s) + 2 H+ + 2Cl-
Calculate the dissociation constant for H1)

 

Write the pertinent reactions associated with the question
2) Write the equilibrium constant
expression for each chemical
reaction.
3) Write the mass balance equations
4) Write the charge balance equation
5) Count the equations and
unknowns.
6) Solve 

 

Constants: Kw = 1.0 * 10-14 Ksp for Zn(OH)₂ = 3.0 * 10-16 Ka for Formic Acid (HCOOH) = 1.8 * 104 Ka of Acetic Acid (HOAc) = 1.75 * 10-5 Atomic weight: Atom H F Pb AW 1 19 106.4 TABLE 10-2 Activity Coefficients for Ions at 25°C Atom AW C 12 Cl 35.5 Ca 40.1 Ion H₂O+ Li*, CH,COO™ Na, 103, HSO3, HCO3, H₂PO4, H₂AsO4, OAc OH, F, SCN, HS, CIO, CIO4, BrO3, 103, MnO4 K+, CI, Br, I, CN, NO₂, NO3, HCOO™ Rb+, Cs, TI, Ag+, NH4+ Mg2+, Be²+ Ca²+, Cu²+, Zn²+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate²- Sr²+, Ba²+, Cd2+, Hg2+, S²- Pb²+, CO32-, SO², C₂04- Hg₂+, SO2, S₂O3²-, Cr₂², HPO42- Al³+, Fe³+, Cr³+, La³+, Ce³+ PO , Fe(CN)63 Th4+, Zr4+, Ce4+, Sn4+ 4- Fe(CN) Atom N Ba Na ax, nm 0.9 0.6 0.4-0.45 0.35 0.3 0.25 0.8 0.6 0.5 0.45 0.40 0.9 0.4 1.1 0.5 AW 14 137.3 Atom O Sr 23 Mg Activity Coefficient at Indicated Ionic Strength 0.001 0.05 0.967 0.85 0.966 0.83 0.965 0.82 0.965 0.81 0.965 0.81 0.965 0.80 0.872 0.52 0.870 0.48 0.869 0.46 0.868 0.45 0.867 0.44 0.737 0.24 0.726 0.16 0.587 0.10 0.569 0.047 0.005 0.934 0.930 0.927 0.926 0.925 0.925 0.756 0.748 0.743 0.741 AW 16 87.62 24 0.738 0.540 0.505 0.348 0.305 0.01 0.913 0.907 0.902 0.900 0.899 0.897 0.690 0.676 0.668 0.665 0.661 0.443 0.394 0.252 0.200 0.1 0.83 0.80 0.77 0.76 0.75 0.75 0.44 0.40 0.38 0.36 0.35 0.18 0.095 0.063 0.020
Transcribed Image Text:Constants: Kw = 1.0 * 10-14 Ksp for Zn(OH)₂ = 3.0 * 10-16 Ka for Formic Acid (HCOOH) = 1.8 * 104 Ka of Acetic Acid (HOAc) = 1.75 * 10-5 Atomic weight: Atom H F Pb AW 1 19 106.4 TABLE 10-2 Activity Coefficients for Ions at 25°C Atom AW C 12 Cl 35.5 Ca 40.1 Ion H₂O+ Li*, CH,COO™ Na, 103, HSO3, HCO3, H₂PO4, H₂AsO4, OAc OH, F, SCN, HS, CIO, CIO4, BrO3, 103, MnO4 K+, CI, Br, I, CN, NO₂, NO3, HCOO™ Rb+, Cs, TI, Ag+, NH4+ Mg2+, Be²+ Ca²+, Cu²+, Zn²+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate²- Sr²+, Ba²+, Cd2+, Hg2+, S²- Pb²+, CO32-, SO², C₂04- Hg₂+, SO2, S₂O3²-, Cr₂², HPO42- Al³+, Fe³+, Cr³+, La³+, Ce³+ PO , Fe(CN)63 Th4+, Zr4+, Ce4+, Sn4+ 4- Fe(CN) Atom N Ba Na ax, nm 0.9 0.6 0.4-0.45 0.35 0.3 0.25 0.8 0.6 0.5 0.45 0.40 0.9 0.4 1.1 0.5 AW 14 137.3 Atom O Sr 23 Mg Activity Coefficient at Indicated Ionic Strength 0.001 0.05 0.967 0.85 0.966 0.83 0.965 0.82 0.965 0.81 0.965 0.81 0.965 0.80 0.872 0.52 0.870 0.48 0.869 0.46 0.868 0.45 0.867 0.44 0.737 0.24 0.726 0.16 0.587 0.10 0.569 0.047 0.005 0.934 0.930 0.927 0.926 0.925 0.925 0.756 0.748 0.743 0.741 AW 16 87.62 24 0.738 0.540 0.505 0.348 0.305 0.01 0.913 0.907 0.902 0.900 0.899 0.897 0.690 0.676 0.668 0.665 0.661 0.443 0.394 0.252 0.200 0.1 0.83 0.80 0.77 0.76 0.75 0.75 0.44 0.40 0.38 0.36 0.35 0.18 0.095 0.063 0.020
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