Solubility Rules

Question 1

1.

Answer 1

Most nitrate(NO3-) salts are soluble.

Question 2

2.

Answer 2

Most salts containing the alkali metal ions (Li+,Na+,K+,Cs+,Rb+) and the ammonium ion (NH4+) are soluble.

Question 3

3.

Answer 3

Most chloride, bromide, and iodide salts are soluble. Notable exceptions are salts containing the ions Ag+, Pb^2+, and Hg2 ^2+.

Question 4

4.

Answer 4

Most sulfate salts are soluble. Notable exceptions are BaSO4, PbSO4, Hg2SO4, and CaSO4.

Question 5

5.

Answer 5

Most hydroxides are insoluble. The important soluble hydroxides are NaOH and KOH. The compounds Ba(OH)2, Sr(OH)2, and Ca(OH)2 are soluble.

Question 6

6.

Answer 6

Most sulfide (S^2-), carbonate (CO3^2-), chromate (CrO4^2-, and phosphate (PO4^3-) salts are only insoluble, except for those containing the cations in Rule 2.

Question 7

7.

Answer 7

Most acetates (C2H3O2^-) are soluble.

Question 8

Note:

Answer 8

all common ionic compounds of alkali metal ions and of the ammonium ion are soluble in water.