A 10.0 g sample of Pb(NO₃)₂(s) is dissolved in distilled water and an excess of 1.0 m hcl (aq) is added. the PbCl₂(s) formed is filtered and placed in an oven to dry. the final mass of the precipitate is significantly greater than predicted. which of the following could account for the discrepancy?
(A) The sample of Pb(NO₃)₂(s) was wet.
(B) The Ksp of PbCl₂(s) is extremely small.
(C) The precipitate was not dried to a constant mass.
(D) . 4 8.0 M HCl(aq) solution was used instead of a 1.0 M HCl(aq) solution.