Indicate whether the following inorganic compounds are soluble or insoluble in water. BaSO4

Question

Indicate whether the following inorganic compounds are soluble or insoluble in water. BaSO₄

Answer 1

Hi again Maddie,

BaSO₄, AgCl, and CuS no; AgNO₃ and KNO₃, yes.

Explanation: Ag is an unusual metal with insoluble halide salts. Something to do with ions sizes, hydration energy of Ag+ and packing into a very stable lattice.

Nitrates are in general soluble. Carbonates: yes for Li etc, no for Be etc.. Phosphates: yes for Li etc, no for Be etc. (your bones have Ca₃(PO₄)₂ and CaCO₃ as mineral content -- they had better not dissolve!).

-- Cheers, - Mr. d.