What are the chemistry solubility rules?

1 Answer
Jun 17, 2017

Answer:

#"Well, all halides are soluble..........."#, and there has to be an exception.

Explanation:

These are the general rules for assessing solubilities in aqueous solution:

#"All the salts of the alkali metals and ammonium are soluble."#

#"All nitrates, and perchlorates are soluble."#

#"All halides are soluble EXCEPT for"# # AgX, Hg_2X_2, PbX_2"#.

#"All sulfates are soluble EXCEPT for"# #PbSO_4, BaSO_4, HgSO_4#.

#"All carbonates and hydroxides are insoluble."#

#"All sulfides are insoluble."#

The given rules follow a hierarchy. Alkali metal and ammonium salts tend to be soluble in all circumstances. The one exception to this rule is #K^(+)""^(-)BPh_4# and #NH_4^(+)""^(-)BPh_4#, both of which are as soluble as bricks. #Na^(+)""^(-)BPh_4# is sold as #"kalignost"#, i.e. #"potassium recognizer."#

Of course, we refer to aqueous solution.