Consider the following reaction and standard cell potential, Which of the follow
ID: 870182 • Letter: C
Question
Consider the following reaction and standard cell potential,
Which of the following best describes what would happen in a solution that initially contains 1.0 M Ni2+, 0.01 M NH3 and 6.0 M Ni(NH3)2+6 at 25oC? (Assume that the number of moles of electrons transported in this reaction is equal to 2)
(a) The concentrations of both Ni2+ and NH3 would decrease and the concentration of Ni(NH3)62+ would increase
(b) The concentrations of both Ni2+ and NH3 would increase and the concentration of Ni(NH3)62+ would decrease
(c) The concentration of Ni(NH3)62+ would decrease, the concentration of NH3 would increase and the concentration of Ni2+ would remain the same
(d) The concentraitions of Ni2+, NH3 and Ni(NH3)62+ would all remain the same
(e) It is impossble to tell
please explain why
Explanation / Answer
As the reaction poential of reaction is positive th reaciton will be spontaneous and will proceed in forward direction so
concentratio of both Ni2+ and NH3 would decrease and the concentration of Ni(NH3)62+ would increase.