aveannedeleon aveannedeleon

04-10-2022
Chemistry

Answered

Heavy metal ions like lead(II) can be precipitated from laboratory wastewater by adding sodium sulfide, Na2S. Will all the lead be removed from 12.8 mL of 7.50×10-3 M Pb(NO3)2 upon addition of 14.1 mL of 0.0125 M Na2S? If all the lead is removed, how many moles of lead is this? If not, how many moles of Pb remain?

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