For the reaction Fe³+ (aq) + 6 H₂O(l) ≈ Fe(OH)3(s) + 3 H3O+ (aq): a)Write out the equilibrium expression for Kc. b) Use the data below to find the value of Kc. Fe(OH)3(s) ≈ Fe³+ (aq) +3 OH¯(aq) 2 H₂O(l) ⇒ H3O+(aq)+OH¯(aq) Kc = 4.0 × 10-38 : 1.0 × 10-14 Кс =

For the reaction Fe³+ (aq) + 6 H₂O(l) ≈ Fe(OH)3(s) + 3 H3O+ (aq): a)Write out the equilibrium expression for Kc. b) Use the data below to find the value of Kc. Fe(OH)3(s) ≈ Fe³+ (aq) +3 OH¯(aq) 2 H₂O(l) ⇒ H3O+(aq)+OH¯(aq) Kc = 4.0 × 10-38 : 1.0 × 10-14 Кс =

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

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 82AP

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Question

For the reaction Fe³+ (aq) + 6 H₂O(l) ⇒ Fe(OH)3(s) + 3 H₂0+ (aq):
a)Write out the equilibrium expression for Kc.
b) Use the data below to find the value of Kc.
Fe(OH)3(s)
Fe³+ (aq) + 3OH- (aq)
2 H₂O(l) ⇒ H3O+ (aq) + OH¯(aq)
Кс
Кс
= 4.0 × 10-
-38
= 1.0 × 10-14

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