Question

Arrange the following compounds in the order of increasing Ksp: AgCl, AgBr, AgI. Explain your reasoning.

I got AgI<AgBr<AgCl

but I looked at the actual Ksp. I do not know how else to explain it besides looking at the Ksp. Like is there any way I can just know which one precedes which. I know that because they're all Ag, they're part of the same group but that is about it.

Thank you so much for any help :)

Answer 1

These differences are attributed to the relative solvation enthalpies of the halide ions; the enthalpy of solvation of fluoride is anomalously large.

https://books.google.com/books?id=qciCdSFpFPkC&pg=PA155&lpg=PA155&dq=solvation+enthalpies+halides+ions&source=bl&ots=vMbXvvEThK&sig=hCOWbBQ_TZhI7PFBgR4wlk-EWYA&hl=en&sa=X&ei=OqBKVadOxfCgBIQj&ved=0CD0Q6AEwBA#v=onepage&q=solvation%20enthalpies%20halides%20ions&f=false

Answer 2

Thank you so much :)