Question

I have searched the web pretty much all day because I want to work out what the pH will be of various salts when they are in water solution. I have searched for references related to pKa and pH, but I find nothing. Is it really true that there doesn't exist a database anywhere in the world were these numbers have been collected? The salts I'm looking for in my case are polyphosphates; dipotassium dihydrogenpyrophosphate and tetrapotassium pyrophosphate for example.

If you can provide a reference for literature/database/table that is sufficiently large that it contain common salts at the same time as these compounds, I will accept it as the answer. If you can provide any other reference that in some way may be used to calculate the pH for the same compounds, that is helpful too.

Answer 1

The pH of a salt solution is influenced by the relative strengths of the ions' acidic or basic character. The dissociation constants can be used to calculate the effect of a salt on the pH of a solution.

Step-by-step explanation:

When it comes to salts and their pH in water solution, it's important to consider the dissociation of the salt into its constituent ions. The pH of a salt solution can be influenced by the relative strengths of the ions' acidic or basic character. If both ions of a salt are either weak acids or weak bases, then the solution will be neutral.

However, if one ion is acidic and the other is basic, the solution will be either acidic or basic depending on the relative strengths of the ions. The acidity or basicity constants, also known as dissociation constants, can be used to calculate the effect of a salt on the pH of a solution.