Assumed Knowledge

Question 1

What are the general solubility rules

Answer 1

1. Group 1 positive ions are always soluble and NO₃^- and C₂H₃O₂^-
2. Halides are generally soluble with the exception of Ag⁺ Pb²⁺ and Hg₂²⁺halides
   3.SO₄^2-s are generally soluble with the exception of certain group 2 elements like Ca Ba Sr Pb(heavy alkali earth metals)
3. OH generally insoluble except for the heavy group 2 earth alkali metals Na and NH₄ Mg is the border line
4. Sulphide Carbonate Phosphate and Chromate are generally insoluble with the exception of group 1 cations and ammonium