Chemistry

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In which of the following solution would CaC2O4 have the highest molar solubility? Please help.

A) 0.01 M NaCl
B) 0.01 M H2C2O4
C) 0.01 M Na2C2O4
D) 0.01 M NaHC2O4
E) 0.01 M HCl

I think it is E because it is a strong acid and will completely dissociate..

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