Solubility Rules

Question 1

NO3 -

Answer 1

All nitrate are soluble

Question 2

CH3COO-

Answer 2

All acetates are soluble except AgCH3COO (Silver Acetate)

Question 3

ClO3 -

Answer 3

All chlorates are soluble

Question 4

Cl -

Answer 4

All chlorides are soluble except AgCl, Hg2Cl, PbCl2 (Silver Chloride, Mercury [I] Chloride, and Lead Chloride)

Question 5

Br -

Answer 5

All bromides are soluble except for AgBr, PbBr2, Hg2Br2, and HgBr (Silver Bromide, Lead Bromide, Mercury [I] Bromide)

Question 6

I -

Answer 6

All iodides are soluble except AgI, Hg2I2, HgI2, and PbI2 (Silver Iodide, Mercury Iodide [1 and 2], and Lead Iodide)

Question 7

SO4 -2

Answer 7

All sulfate are soluble except BaSo4, PbSo4, HgSo4, CaSO4, Ag2SO4 (Barium Sulfate, Lead Sulfate, Mercury Sulfate, Calcium Sulfate)

Question 8

Alkali metals cations (Groups IA) and NH4

Answer 8

All are soluble

Question 9

H +

Answer 9

All are soluble

Question 10

CO3 2-

Answer 10

All carbonates are insoluble except IA elements and NH4

Question 11

CrO4 2-

Answer 11

All chromates are insoluble except for IA elements NH4 and CaCrO4, SrCrO4 (Calcium Chromate, Strontium Chromate)

Question 12

OH -

Answer 12

All hydroxides are insoluble except AI elements, NH4, Ba(OH)2, Sr(OH)2, and Ca(OH)2 (Barium Hydroxide, Strontium Hydroxide, and Calcium Hydroxide)

Question 13

PO4 3-

Answer 13

All phosphates are insoluble except for IA elements and NH4

Question 14

SO3 2-

Answer 14

All sulfite are insoluble except IA elements and NH4

Question 15

S 2-

Answer 15

All sulfide are insoluble except for IA IIA elements and NH4