17.6 pH Effects on Solubility

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    Acidic, Basic, and Neutral Salts

    Acidic salts are more soluble in basic solutions (pH>7), less soluble in acidic solutions (pH<7).

     

    Basic salts are more soluble in acidic solutions (pH<7), less soluble in basic solutions (pH>7).

     

    Neutral salts have a solubility that is largely unaffected by a change in pH.

    NEGLIGIBLE CATIONS NEGLIGIBLE ANIONS
    Group 1 metal ions (Li+, Na+, K+, Rb+, Cs+)

    Group 2 metal ions (Mg2+, Ca2+, Sr2+, Ba2+)

    Transition metals with +1 charge (such as Ag+)
    Conjugate bases of strong acids

    (Cl-, Br-, I-, NO3-, ClO4-, ClO3-)


    ALL OTHER CATIONS ARE ACIDIC ALMOST ALL OTHER ANIONS ARE BASIC
    HSO4- is Acidic