Solubility Rules (NAG SAG PMS CASTRO BEAR)

For Chem 1

Nitrates

$NO_3^{-}$ (N), Always Soluble

Acetates

$C_2H_3O_2^{-}$ (A), Always Soluble

Group 1 Alkali Metals

$Li^{+},Na^{+},K^{+}$ Always soluble, (G)

Sulfates

$SO_4^{2-}$ Always Soluble except for CASTRO BEAR & PS, (S)

Ammonium

$NH_4^{+}$ Always soluble, (A)

Group 17 Halogens

$Cl^{-},Br^{-},I^{-}$ Always soluble, except for PMS (G)

P

$Pb^{2+}$ Lead

M

$Hg_2^{2+}$ Mercury

S

$Ag^{+}$ Silver

Ca

$Ca^{2+}$ Calcium

Stro

$Sr^{2+}$ Strontium

BEAR

$Ba^{2+}$ Barium

Hydroxide

$HO^{-}$ Insoluble except w/

• Group 1 Metals & Ammonium turns soluble

• CASTRO BEAR turns slightly soluble

Sulfur

$S^{2-}$ Insoluble except w/

• Group 1 Metals, Ammonium, Castro Bear turns soluble

Carbonate

$CO_3^{2-}$ Insoluble except w/ group 1 metals & ammonium

Phosphate

$PO_4^{3-}$ Insoluble except w/ group 1 metals & ammonium