which one of the following compounds will be insoluble in water?\na) caco3\nb) pb(c2h3o2)2\nc) agno3\nd)…
which one of the following compounds will be insoluble in water?\na) caco3\nb) pb(c2h3o2)2\nc) agno3\nd) nh4cl\ne) cacl2
Answer
Brief Explanations:
- Recall solubility rules:
- Carbonates ($CO_3^{2 -}$) are generally insoluble in water, with some exceptions for alkali - metal carbonates and ammonium carbonate. Calcium carbonate ($CaCO_3$) is a carbonate and is insoluble in water.
- Acetates ($C_2H_3O_2^-$) are soluble. So, lead(II) acetate ($Pb(C_2H_3O_2)_2$) is soluble.
- Nitrates ($NO_3^-$) are soluble. So, silver nitrate ($AgNO_3$) is soluble.
- Chlorides ($Cl^-$) are soluble, except for those of silver, lead, and mercury(I). Ammonium chloride ($NH_4Cl$) and calcium chloride ($CaCl_2$) are soluble as they do not fall into the insoluble chloride category.
Answer:
A. $CaCO_3$