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2) Will Acanthite grow or dissolve if [Ag*(aq)]=106 M, pH=6, and [H₂S (aq)]=10-³m? (5 pts) Ag₂S (s) + 2 H+ (aq) ⇒ 2Ag+ (aq) + H₂S (g) Thermodynamic Data from Woods and Garrels (1987): 'Thermodynamic Values at Low Temperature...... Formula OH-(aq) H₂O(l) H₂O(g) H*(aq) H*(aq) H₂S(g) H₂S(aq) HS-(aq) S²-(aq) AH/(kJ/mol) -230.0 -285.8 -241.8 0 0 -20.1 -39.7 -17.6 +33.1 Ag*(aq) 105.6 Ag₂O(s) -31.0 Ag2S(s, acanthite) -32.6 AG (kJ/mol) -157.3 -237.2 -228.6 0 0 -33.6 -27.8 12.1 85.8 77.1 -11.2 -40.7 S°(J/deg) -10.8 69.9 188.8 0 0 205.8 121.0 62.8 -14.6 72.9 121.3 144.0

2) Will Acanthite grow or dissolve if [Ag*(aq)]=106 M, pH=6, and [H₂S (aq)]=10-³m? (5 pts) Ag₂S (s) + 2 H+ (aq) ⇒ 2Ag+ (aq) + H₂S (g) Thermodynamic Data from Woods and Garrels (1987): 'Thermodynamic Values at Low Temperature...... Formula OH-(aq) H₂O(l) H₂O(g) H*(aq) H*(aq) H₂S(g) H₂S(aq) HS-(aq) S²-(aq) AH/(kJ/mol) -230.0 -285.8 -241.8 0 0 -20.1 -39.7 -17.6 +33.1 Ag*(aq) 105.6 Ag₂O(s) -31.0 Ag2S(s, acanthite) -32.6 AG (kJ/mol) -157.3 -237.2 -228.6 0 0 -33.6 -27.8 12.1 85.8 77.1 -11.2 -40.7 S°(J/deg) -10.8 69.9 188.8 0 0 205.8 121.0 62.8 -14.6 72.9 121.3 144.0

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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2) Will Acanthite grow or dissolve if [Ag*(aq)]=106 M, pH=6, and [H₂S (aq)]=10-³m? (5 pts) Ag₂S (s) + 2 H+ (aq) ⇒ 2Ag+ (aq) + H₂S (g) Thermodynamic Data from Woods and Garrels (1987): 'Thermodynamic Values at Low Temperature...... Formula OH-(aq) H₂O(l) H₂O(g) H*(aq) H*(aq) H₂S(g) H₂S(aq) HS-(aq) S²-(aq) AH/(kJ/mol) -230.0 -285.8 -241.8 0 0 -20.1 -39.7 -17.6 +33.1 Ag*(aq) 105.6 Ag₂O(s) -31.0 Ag2S(s, acanthite) -32.6 AG (kJ/mol) -157.3 -237.2 -228.6 0 0 -33.6 -27.8 12.1 85.8 77.1 -11.2 -40.7 S°(J/deg) -10.8 69.9 188.8 0 0 205.8 121.0 62.8 -14.6 72.9 121.3 144.0
Transcribed Image Text:2) Will Acanthite grow or dissolve if [Ag*(aq)]=106 M, pH=6, and [H₂S (aq)]=10-³m? (5 pts) Ag₂S (s) + 2 H+ (aq) ⇒ 2Ag+ (aq) + H₂S (g) Thermodynamic Data from Woods and Garrels (1987): 'Thermodynamic Values at Low Temperature...... Formula OH-(aq) H₂O(l) H₂O(g) H*(aq) H*(aq) H₂S(g) H₂S(aq) HS-(aq) S²-(aq) AH/(kJ/mol) -230.0 -285.8 -241.8 0 0 -20.1 -39.7 -17.6 +33.1 Ag*(aq) 105.6 Ag₂O(s) -31.0 Ag2S(s, acanthite) -32.6 AG (kJ/mol) -157.3 -237.2 -228.6 0 0 -33.6 -27.8 12.1 85.8 77.1 -11.2 -40.7 S°(J/deg) -10.8 69.9 188.8 0 0 205.8 121.0 62.8 -14.6 72.9 121.3 144.0
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