194. The specific electrical conductivity of a saturated solution of PbSO4 at 25 C is 3.9*10–5 Ohm-1cm-1, and the specific electrical conductivity of water used to dissolve the salt is 1.5*10–6 Ohm-1cm-1? What is the solubility product of PbSO4 if the limiting equivalent electrical conductivities of the Pb2 and SO42- ions are 70 Ohm-1mol-1cm2 and 80 Ohm-1mol-1cm2, respectively?
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