SrSO4, CuCN, and Ni(OH)2 are more soluble in acidic solution than in pure water.
If you don't understand what basic anions are, then look at it this way.
Which anions will hydrolyze with H2O to form a WEAK acid when added to H^+; i.e., an acid that has a Ka (not a strong acid).
Take them one at a time.
SO4^2- + H^+ ==> HSO4^-
HSO4^- is k2 for H2SO4; there is no k1 since H2SO4 is a strong acid for the first H.
ClO4^- + H^+ ==> HClO4
NOPE Won't go because HClO4 is a strong acid.
CN^- + H^+==> HCN
HCN is a weak acid; it has a Ka.
OH^- + H^+ ==>H2O
H2O is a weak electrolyte; it has a Ka/Kb but usually we only talk about Kw.
Cl^- + H^+ ==> HCl
NOPE. HCl is a strong acid; it has no Ka.
Which of the following will be more soluble in an acidic solution than in pure water?
SrSO4
CsClO4
CuCN
Ni(OH)2
AgCl
Please help explain why! I've tried submitting the ones that are insoluble in water and it was wrong. I know it has something to do with basic anions but I don't know how to tell if an anion is basic or not :/
2 answers
came from the future thanks bob