The Hg2+ ion forms complex ions with I - as follows:
Hg2+(aq) + I -(aq) ⇌ HgI+(aq) K 1 = 1.0 X 108
HgI+(aq) + I -(aq) ⇌ HgI2(aq) K 2 = 1.0 X 105
HgI2(aq) + I -(aq) ⇌ HgI3-(aq) K 3 = 1.0 X 109
HgI3-(aq) + I -(aq) ⇌ HgI42-(aq) K 4 = 1.0 X 108
A solution is prepared by dissolving 0.088 mole of Hg(NO3)2 and 5.00 moles of NaI in enough water to make 1.0 L of solution.
c. Calculate the equilibrium concentration of [Hg2+].
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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.