help plz frnds An experiment similar to the one performed in this lab was carrie

Question

help plz frnds

An experiment similar to the one performed in this lab was carried out to determine the Ksp of PbCl2, MM = 278.10 g/mol The dissolved chloride in the filtered solution was quantitatively precipitated as AgCl by the addition of excess AgNO3 solution. The solid AgCl was filtered, dried, and weighed. The results were: Temperature of the solution = 20.2degreeC, Volume of PbCl2 solution analyzed = 21.44 mL, Mass of dry AgCl = 0.3806 grams. What was [pb+2] in the PbCl2 solution? Enter your answer to the nearest 0.00001.

Explanation / Answer

mass of dry AgCl=0.3806g

moles of AgCl=0.3806g/143.5g/mole=0.00265moles

moles of Cl-=0.00265moles

moles of Pb2+=0.00133moles

Volume of PbCl2 soln analysed=21.44mL

[PbCl2]=[Pb2+]=0.00133moles/0.02144L=0.06185M

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