A1 11.10. (Based on a problem in Stumm and Morgan¹) (a) Determine the solubility(in mol/L) of Au() (i.e., calculate Aur) in seawater in equilibrium withthe atmosphere. If the volume of the world's oceans is 1.37 x 109 km³, howmuch gold (in kg) can the oceans hold?Seawater has a pH = 8.1 and [CI] = 0.545 M. The following equilibriumconstants may be useful:AuCl₂ +e=Au() +2C1™log K = 19.2AuCl +3e Au(s) + 4C1-log K = 51.3Au(OH) + 4H+ + 4C1 = AuCl + 4H₂O log K= 29.64O2(g) + 4H+ + 4e = 2H₂OE = 1.226 V

Solubility : solubility is defined as the maximum amount of a substance that will dissolve in a…

1. (Based on a problem in Stumm and Morgan¹) (a) Determine the solubility (in mol/L) of Au() (i.e., calculate Aur) in seawater in equilibrium with the atmosphere. If the volume of the world's oceans is 1.37 x 10⁹ km³, how much gold (in kg) can the oceans hold? Seawater has a pH = 8.1 and [CI] = 0.545 M. The following equilibrium constants may be useful: AuCl₂ += Au() +2C1™ log K = 19.2 AuCl +3e Au(s) + 4C1 = log K = 51.3 Au(OH) + 4H+ + 4C1 = AuCl + 4H₂O log K= 29.64 O2(g) + 4H+ + 4e" = 2H₂O E = 1.226 V

1. (Based on a problem in Stumm and Morgan¹) (a) Determine the solubility (in mol/L) of Au() (i.e., calculate Aur) in seawater in equilibrium with the atmosphere. If the volume of the world's oceans is 1.37 x 10⁹ km³, how much gold (in kg) can the oceans hold? Seawater has a pH = 8.1 and [CI] = 0.545 M. The following equilibrium constants may be useful: AuCl₂ += Au() +2C1™ log K = 19.2 AuCl +3e Au(s) + 4C1 = log K = 51.3 Au(OH) + 4H+ + 4C1 = AuCl + 4H₂O log K= 29.64 O2(g) + 4H+ + 4e" = 2H₂O E = 1.226 V

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter16: Solubility And Precipitation Equilibria

Section: Chapter Questions

Problem 71AP

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