You observed the following reaction in lab: Fe(NO3)3(aq) + HSCN(aq) ? FeSCN2+(aq
ID: 762864 • Letter: Y
Question
You observed the following reaction in lab: Fe(NO3)3(aq) + HSCN(aq) ? FeSCN2+(aq) + H+(aq) (The reactants are colorless; the FeSCN2+(aq) product is orange). Which of the following statements about this reaction is true? 1. When HSCN is added, you expect that the equilibrium will shift to the right and the reaction mixture will become lighter (less orange). 2. When HSCN is added, you expect that the equilibrium will shift to the left and the reaction mixture will become lighter (less orange). 3. When HSCN is added, you expect that the equilibrium will shift to the left and the reaction mixture will become darker (more orange). 4. When HSCN is added, you expect that the equilibrium will shift to the right and the reaction mixture will become darker (more orange).Explanation / Answer
Ans:4 4.When HSCN is added, you expect that the equilibrium will shift to the right and the reaction mixture will become darker (more orange). Because of Le-chatliers principle