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13 Dec 2019

a) Write the dissolution reaction for lead(II) iodide. How many grams of lead(II) iodide will dissolve in 250.0 mL of water? What are the molarities of lead(II) ion and iodide ion? Neglect any volume change due to the lead(II) iodide. Ksp of lead(II) iodide = 1.4 x 10-8

b) How many grams of lead(II) iodide will dissolve in 250.0 mL of 0.35 M HI?

c) Will the solubility of lead(II) iodide in 250.0 mL of 0.35 M HNO3 be the same as (a) or (b) ?

d ) How would the answers to (a) and (c) have compared if the salt under consideration were lead(II) fluoride, rather than lead(II) iodide? Ksp PbF2 = 7.1 x 10-7 KaHF = 7.2 x 10-4

e ) Lead(II) ion forms a 1:1 complex with a particular ligand, L (forms PbL2+) . Write the reaction for formation of the complex ion using “L” as the ligand. If the formation constant for this complex is 2.9 x 104 , calculate the solubility of lead(II) iodide in a 1.5 M solution of L.

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Elin Hessel
Elin HesselLv2
17 Dec 2019

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