# How can you memorize chemistry solubility rules?

##### 1 Answer
Feb 11, 2017

How else but by rote? And you must also learn the exceptions....

#### Explanation:

So how good is my memory? And note that we refer to aqueous solutions only. These follow a hierarchy.

$\text{All nitrate/acetate/perchlorate/ammonium salts are soluble.}$

$\text{All alkali metal salts are soluble, except for}$ $K B P {h}_{4}$.

$\text{All halides are soluble, except for } A g X , H {g}_{2} {X}_{2} , \mathmr{and} P b {X}_{2}$.

$\text{All sulfates are soluble, except for } B a S {O}_{4} , A {g}_{2} S {O}_{4} , P b S {O}_{4} , S r S {O}_{4.}$

$\text{All carbonates are insoluble (except for those of the alkali metals)}$

$\text{All hydroxides are insoluble (except for those of the alkali metals)} .$

$\text{All sulfides are insoluble (except for those of the alkali metals)} .$

$\text{All phosphates are insoluble (except for those of the alkali metals).}$

Have at it. This is the knowledge I would expect of a 2nd year inorganic chemistry student. At A level, you must know that the halides are SOLUBLE, but that $A g X , H {g}_{2} {X}_{2} , P b {X}_{2}$ are as soluble as BRICKS. Are bricks soluble? I think, you should also know at A level that $\text{silver chloride}$ is curdy white, $\text{silver bromide}$ is cream-coloured, and $\text{silver iodide}$ is bright yellow.