Solubility Rules

Question 1

Na+

Answer 1

Soluble, no exception

Question 2

K+

Answer 2

Soluble, no exceptions

Question 3

NH₄+

Answer 3

Soluble, no exceptions

Question 4

NO₃-

Answer 4

Soluble, no exceptions

Question 5

CH₃COO-

Answer 5

Soluble, no exceptions

Question 6

Br-

Answer 6

Soluble EXCEPT Ag+, Hg₂+, Pb₂+, Cu+

Question 7

Cl-

Answer 7

Soluble EXCEPT Ag+, Hg₂+, Pb₂+, Cu+

Question 8

I-

Answer 8

Soluble EXCEPT Ag+, Hg₂+, Pb₂+, Cu+

Question 9

SO₄ 2-

Answer 9

Soluble. BUT
Insoluble: Ba²⁺, Sr²⁺+, Pb²⁺
Slightly Insoluble: Ag+, Ca²⁺, Hg2²⁺

Question 10

S²⁻

Answer 10

insoluble EXCEPT Compounds of NH4
+, Group 1
metal cations, Sr2²⁺ Ba²⁺and Ca²⁺

Question 11

O²⁻

Answer 11

insoluble EXCEPT Compounds of NH4
+, Group 1metal cations, Sr²⁺ and Ba²⁺

Question 12

OH-

Answer 12

insoluble EXCEPT Compounds of NH4
+, Group 1metal cations, Sr²⁺ and Ba²⁺

Question 13

CrO4²⁻

Answer 13

insoluble EXCEPT Compounds of NH4+, Group 1metal cations, and Mg²⁺

Question 14

CO3²⁻

Answer 14

insoluble EXCEPT Compounds of NH4+ and Group 1 metal cations

Question 15

PO4³⁻

Answer 15

insoluble EXCEPT Compounds of NH4+ and Group 1 metal cations