Solubility Rules Chart Pdf. Solubility rules chart negative ions (anions) + positive ions (cations) = solubility of compounds in water example any anion + alkali ions (li+, na+, k+, rb+, cs+, fr+) = soluble sodium fluoride, naf, is soluble any anion + hydrogen ion [h+ (aq)] = soluble hydrogen chloride, hcl, is soluble any anion + ammonium ion (nh4) = soluble ammonium.

Solubility rules chart negative ions (anions) + positive ions (cations) = solubility of compounds in water example any anion + alkali ions (li+, na+, k+, rb+, cs+, fr+) = soluble sodium fluoride, naf, is soluble any anion + hydrogen ion [h+ (aq)] = soluble hydrogen chloride, hcl, is soluble any anion + ammonium ion (nh4) = soluble ammonium.