The reaction below competes with the formation of the FeSCN^2+ complex: Fe^3+ (a

Question

The reaction below competes with the formation of the FeSCN^2+ complex: Fe^3+ (aq) + 4Cl^- (aq) FeCl_4^- (aq) yellow colorless Explain what would happen to the color of a dilute solution containing FeCl_$^- if a. you added a solution containing silver ion, Ag^+. (Silver ion reacts with chloride ion in solution to form the precipitate AgCl.) b. you added a solution of sodium chloride, NaCl. c. you added concentrated HCl. d. you added concentrate H_3PO_4. Adding MCl or H_2SO_4 to a mixture of H_2PO_4/HPO_4^2- would cause a common ion effect. What is the common ion, and what would be the overall observation? In which direction has the reaction shifted? The Haber process is an important reaction for the fixation of nitrogen; nitrogen is converted into ammonia, an important component in the production of fertilizers. N_2(g) + 3H_2(g) 2NH_3(g) + 22,000 cal. Consider the reaction is at equilibrium. Explain in which direction the equilibrium is shifted when a. more nitrogen is added? b. more hydrogen is added? c. ammonia is removed? d. the reaction is cooled?

Explanation / Answer

Ans 3 -

(a) In this Ag+ will take Cl- forming periciptae of AgCl . Hnce it is seen that equllibrium is disturbes , will shift torads the left hand side to produce Cl- ions . Only product left is Fe+3 which is yellow in colour.

(c) HCl will give extra Cl- ions thus equllibrium will shift towards the right hand side to produce FeCl4-. The overall colour will be colourless as well.

(b) NaCl will give extra Cl- ions thus equllibrium will shift towards the right hand side to produce FeCl4-. The overall colour will be colourless as well.

(d)H3PO4 will have no. of effects, it will form a complex with Fe3+ and give colourless complex .

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.