Chapter 14, Problem 14.105SP

Consider the endothermic reaction

${\text{Fe}}^{\text{3}+}\left(aq\right)+{\text{Cl}}^{-}\left(aq\right)\rightleftharpoons {\text{FeCl}}^{\text{2}+}\left(aq\right)$

Use Le Chátelier’s principle to predict how the equilibrium concentration of the complex ion FeCl²+ will change when:

(a) Fe(NO₃)₃ is added

(b) Cl- is precipitated as AgCl by addition of AgNO₃

(c) The temperature is increased

(d) A catalyst is added