Solubility

Question 1

What is always SOLUBLE in water?

Answer 1

1. Nitrates (NO3-)
2. Acetates
3. Alkali metals (Li, Na, K, Rb, Cs)
4. Ammonium salts (NH4+)
5. Chlorides, Bromides, Iodides
6. Sulfates (SO4 2-)

Question 2

Chlorides, Bromides, and Iodides are soluble expect with what?

Answer 2

Ag+, Pb 2+, Hg2 2+

Question 3

Sulfates, (SO4 2-) are soluble expect with what?

Answer 3

Ba 2+, Pb 2+, Sr 2+, Ca 2+, Hg2 2+, Ag

Question 4

What is always INSOLUBLE in water? (form a precipitate)

Answer 4

1. Carbonate (CO3 2-) and Phosphate (PO4 3-)
2. Hydroxides (OH-)
3. Sulfides (S 2-)
4. Chromates (CrO4 2-)

Question 5

Carbonates (CO3 2-) and Phosphates (PO4 3-) are INSOLUBLE except with what?

Answer 5

Na+, K+, NH4+

Question 6

Hydroxides (OH-) are INSOLUABLE except with what?

Answer 6

Na+, K+, NH4+, Ca 2+, Sr 2+, Ba 2+

Question 7

What are Hydroxides (OH-) slightly dissolvable with?

Answer 7

Ca, Sr, Ba

Question 8

Sulfides (S 2-) are INSOLUBLE expect with what?

Answer 8

Na+, K+, NH4+, Mg 2+, Ca 2+, Sr 2+, Ba 2+

Question 9

Chromates are INSOLUBLE expect with that?

Answer 9

Group 1 (PT column 1), NH4+, Mg 2+