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Homework answers / question archive / Which of the following will be more soluble in an acidic solution than in pure water? Be(OH)2 RbClO4 CuCl AlPO4 PbSO4
Which of the following will be more soluble in an acidic solution than in pure water?
Be(OH)2
RbClO4
CuCl
AlPO4
PbSO4
Ans: Be(OH)2, AlPO4 , PbSO4 are more soluble in an acidic solution than in pure water.
Explanation:
Be(OH)2 ---------> Be+2 + 2OH-
RbClO4 -----------> Rb+ + ClO4-
CuCl ---------------> Cu+ + Cl-
AlPO4 --------------> Al+3 + PO4-3
PbSO4 --------------.> Pb+2 + SO4-2
Any base which accepts protons from acid in an acid solution is more soluble in acid than in water.
The anions OH-, ClO4-, Cl-,PO4-3 and SO4-2, are the resulting bases from Be(OH)2, RbClO4,CuCl, AlPO4,PbSO4.
There are six strong acids, HClO4, H2SO4, HNO3, HI,HBr and HCl. They completely dissociate in water to ClO4-, HSO3-, HNO3-, Cl-, I- and Br- ions. Therefore, these six anions will not accept protons and their salts will not be more soluble in acid solution.
Hence,
1) Be(OH)2 ---------> Be+2 + 2OH-
OH- will accept protons in acid solution. Hence,Be(OH)2 is more soluble in acid solution.
2) RbClO4 -----------> Rb+ + ClO4-
ClO4- will not accept protons in acid solution. Hence, RbClO4 will not be more soluble in acid.
3) CuCl ---------------> Cu+ + Cl-
Cl- will not accept protons in acid solution. Hence,CuCl will not be more soluble in acid.
4) AlPO4 --------------> Al+3 + PO4-3
PO4-3 will accept protons in acid solution. Hence, AlPO4 is more soluble in acid solution.
5) PbSO4 --------------.> Pb+2 + SO4-2
SO4-2 will accept protons in acid solution. Hence, PbSO4 is more soluble in acid solution.