Question

Please answer question 1a, 1b, and 2.

General Chemistry II Laboratory Manual, 2019 Revision Le Chatelier's Principle Pre-Lab Date: Name: 1) Cu(H20) 2+ + 4SCN = Cu(SCN) 2 + 4H20 (a) Write the Kc expression for this equilibrium. (b) Would there be a shift to the right or to the left if KSCN solution was added to a solution containing this equilibrium? Explain your answer. 2) What is one of the major hazards associated with potassium dichromate?

Answer 1

Answer-1) aA + bB Ĉ cC + dd Ko = [c]º co jd Caja EByb (a) Given reaction is - Culhen). +4 SCN = Culscn) 7 4 4,0 Ko = [Cu(scn),?] [H0]" [Cu(H20)+] [Son]" (6) When KEN is added it break into kt and KSCN SCN ions. As per the of reaction concentration of Scar increase then equillibrium shifut in forward direction.

The Equilibrium shift in forward direction when KSCN is added because due to its Dissociation concentration of SCN- increase.

Answer-2

The exposure of potassium dichromate can cause cornial injury or complete blindness. It can cause rashes and itching on the skin.

It can also cause respiratory disease and difficulty in breathing.

Please hit the like button.