Hydrolysis of salt

The hydrolysis of salt tells you whether a salt is acidic or basic. But it does not tell you how acidic or basic a salt is. Is there a way to determine this?


My guess is that taking of the weak base part of a salt( presuppose that it is acidic) and see how many hydronium ion it could produce. So the more hydronium ions, the more acidic this salt is?




**Steps for determining acidity or basicity of a salt by hydrolysis:** 


1. Write the neutralization reaction in reverse (salt and water makes base and acid).
2. Break up the salt into its ions.
3. To write the base, add an $\ce{OH-}$ to the cation (the positive ion) for each + charge.
4. To write the acid, Add $\ce{H+}$ to the anion (the negative ion) for each negative charge.
5. If you for a strong base, the salt is **basic**. $\ce{(NaOH, KOH, LiOH, Mg(OH)\_2, ...)}$


If you form a strong acid it is **acidic**. $\ce{(HCl, HNO\_3, HClO\_4, HBr,...)}$


If you form both a strong acid and a strong base it is **neutral**.


**EXAMPLE:**


$\ce{NH\_4Cl}$


$\ce{NH4Cl + H\_2O <=> NH4OH + HCl}$


Since $\ce{HCl}$ is a strong acid it breaks up and yields $\ce{H+}$, the salt is **acidic**.


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