1. Lead (II) sulfide (PbS, an insoluble salt, Ksp 3.4 x 108) was used as a black pigment by the artist Leonardo. a) Lead ions will form the following complex ion, [Pb(Cl)4] 2-Kf 2.5 x 1015with the addition of NaCl) causing the lead sulfide to dissolve. What is the molar solubility of lead sulfide if you already have the precipitate when a 1.2 M solution of NaCl is added to the precipitate (eliminate spectator ions)? b) If a beaker contains 0.1 M lead ions and sulfide ions and 1.4 M chloride ions. Write the 2 reactions that occur with the lead ions. Which reaction takes precedence? c) What concentration of lead ions are left in solution after the complex ion has formed? Will there be enough lead ions left to form a precipitate with the sulfide ions?
1. Lead (II) sulfide (PbS, an insoluble salt, Ksp 3.4 x 108) was used as a black pigment by the artist Leonardo. a) Lead ions will form the following complex ion, [Pb(Cl)4] 2-Kf 2.5 x 1015with the addition of NaCl) causing the lead sulfide to dissolve. What is the molar solubility of lead sulfide if you already have the precipitate when a 1.2 M solution of NaCl is added to the precipitate (eliminate spectator ions)? b) If a beaker contains 0.1 M lead ions and sulfide ions and 1.4 M chloride ions. Write the 2 reactions that occur with the lead ions. Which reaction takes precedence? c) What concentration of lead ions are left in solution after the complex ion has formed? Will there be enough lead ions left to form a precipitate with the sulfide ions?
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Chapter17: Solubility And Complex-ion Equilibria
Section: Chapter Questions
Problem 17.99QP: A solution contains 0.0150 M lead(II) ion. A concentrated sodium iodide solution is added dropwise...
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Question
![1. Lead (II) sulfide (PbS, an insoluble salt, Ksp = 3.4 x 10-28) was used as a black pigment
by the artist Leonardo.
a) Lead ions will form the following complex ion, [Pb(Cl)4] 2- ,Kf = 2.5 x 1015with the
addition of NaCl) causing the lead sulfide to dissolve. What is the molar solubility of lead
sulfide if you already have the precipitate when a 1.2 M solution of NaCl is added to the
precipitate (eliminate spectator ions)?
b) If a beaker contains 0.1 M lead ions and sulfide ions and 1.4 M chloride ions. Write the
2 reactions that occur with the lead ions. Which reaction takes precedence?
c) What concentration of lead ions are left in solution after the complex ion has formed?
Will there be enough lead ions left to form a precipitate with the sulfide ions?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad7a9de5-c173-437c-a68e-85291cb6729b%2F933c5b10-eedc-4e6c-9b4c-6847e2a0ef62%2F29nlcr9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Lead (II) sulfide (PbS, an insoluble salt, Ksp = 3.4 x 10-28) was used as a black pigment
by the artist Leonardo.
a) Lead ions will form the following complex ion, [Pb(Cl)4] 2- ,Kf = 2.5 x 1015with the
addition of NaCl) causing the lead sulfide to dissolve. What is the molar solubility of lead
sulfide if you already have the precipitate when a 1.2 M solution of NaCl is added to the
precipitate (eliminate spectator ions)?
b) If a beaker contains 0.1 M lead ions and sulfide ions and 1.4 M chloride ions. Write the
2 reactions that occur with the lead ions. Which reaction takes precedence?
c) What concentration of lead ions are left in solution after the complex ion has formed?
Will there be enough lead ions left to form a precipitate with the sulfide ions?
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