determine the solubility product of the slightly soluble salt calcium oxalate,cac2o4 by titrating 200cm^3 sample of a suturated solution of this salt with 0.00135mol dm^3 HCl solution.calculate Ksp?

Answer 1

Don't get lazy in chemistry. Find the caps key. cac2o4 isn't anything to me. Fortunately you told me what it was. You didn't give the volume.
mols = M x L. Convert to 1000 cc
Ksp = (Ca^2+)(C2O4^=)
Subtitute into Ksp expression and solve.