Lead(II) carbonate, PbCO3, is one of the components of the passivating layer that forms inside lead pipes.

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Lead(II) carbonate, PbCO3, is one of the components of the passivating layer that forms inside lead pipes. 

(a) If the Ksp for PbCO3 is 7.4 x 10-14 what is the molarity of Pb2+ in a saturated solution of lead(II) carbonate? 

(b) What is the concentration in ppb of Pb2+ ions in a saturated solution? 

(c) Will the solubility of PbCO3 increase or decrease as the pH is lowered? 

(d) The EPA threshold for acceptable levels of lead ions in water is 15 ppb. Does a saturated solution of lead(II) carbonate produce a solution that exceeds the EPA limit?

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Chemistry The Central Science

ISBN: 978-0134414232

14th Edition

Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus

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