9. It has been said that seawater contains more gold than all of the world's banks. One estimate of the molar concentration of dissolved gold in seawater is 5.6 x 10-11 mol/L. a. Would a precipitate form if equal volumes of seawater and 0.100 mol/L sodium chloride are combined? Note that Ksp (AuCl (aq)) = 2.0 x 10-13 and Ksp (AuCl3 (aq)) = 3.2 x 10-25. (7) [E1.1/2, E1.2/2] b. Explain whether this is a feasible way to extract gold from seawater. (3) [E1.1/2, E1.2/2]

Chemistry: Principles and Practice
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Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
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Chapter14: Chemical Equilibrium
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9. It has been said that seawater contains more gold than all of the world's
banks. One estimate of the molar concentration of dissolved gold in seawater is
5.6 x 10-11 mol/L.
a. Would a precipitate form if equal volumes of seawater and 0.100 mol/L sodium
chloride are combined? Note that Ksp (AuCl (aq)) = 2.0 x 10-13 and Ksp (AuCl3
(aq)) = 3.2 x 10-25. (7) [E1.1/2, E1.2/2]
b. Explain whether this is a feasible way to extract gold from seawater. (3)
[E1.1/2, E1.2/2]
Transcribed Image Text:9. It has been said that seawater contains more gold than all of the world's banks. One estimate of the molar concentration of dissolved gold in seawater is 5.6 x 10-11 mol/L. a. Would a precipitate form if equal volumes of seawater and 0.100 mol/L sodium chloride are combined? Note that Ksp (AuCl (aq)) = 2.0 x 10-13 and Ksp (AuCl3 (aq)) = 3.2 x 10-25. (7) [E1.1/2, E1.2/2] b. Explain whether this is a feasible way to extract gold from seawater. (3) [E1.1/2, E1.2/2]
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