This is a question on a practice exam for Gen Chem 2 that I cannot figure out...
"If you prepared 0.010M solutions of each of the following salts in pure water, for which one would the [H3O+] be equal to the [OH-]?
a. NaOCl b. CsI c. NaF d. KCN e. NH4Cl"
I know the answer is CsI because that is what the key says, but I have no idea about how to solve the question. I know that when [H3O+] = [OH-] the solution is neutral, meaning pH is 7. I know that NaOCl will create a weak base solution since OCl is a weak base. This also applies for KCN since CN- is a weak base in solution as well. Then there is NH4Cl, which will make NH4+ in solution which is a weak acid so the solution will not be neutral there, either. So I am left with NaF and CsI, which I cannot distinguish how they will react in solution. Anyways, any help would be much appreciated. Thanks.