Answer to Question #163977 in Chemistry for Kaylor Appelfeller

Question

1. Predict how the solubility of iron(III) nitrate will change in response to each of the following stressors. Provide explanations for your answers.

Fe(NO3)3 (s) ⇌ Fe+3(aq) + 3 NO3−(aq)

1. The pH of the solution is decreased. 

1. Mg(NO3)2 is added to the solution. 

Answer 1

1. pH does not impact this equilibrium. Its deacrease does not shift the balance.
2. Mg(NO₃)₂ is added to the solution increases the concentration of NO₃^/ ions in the equilibrium. Therefore, spead of a direct reaction slows down.