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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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geruff geruff
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6 years ago
An industrial plant processes its waste water through a sedimentation tank that removes hazardous metals by precipitating them as insoluble carbonate salts. If sodium carbonate is gradually added to the tank, what would be the order of precipitation of the metals, Pb2+, Cu2+, Hg22+, and Zn2+ if each is  1.0  104 M? ( Ksp PbCO3 = 7.4  1014, Ksp CuCO3 = 1.4  1010, Ksp Hg2CO3 = 8.9  1017, and Ksp ZnCO3 = 1.4  1011)
   
  a.
  Pb2+, Hg22+, Zn2+, Cu2+
   
  b.
  Hg22+, Pb2+, Zn2+, Cu2+
   
  c.
  Cu2+, Zn2+, Pb2+, Hg22+
   
  d.
  Cu2+, Zn2+, Hg22+, Pb2+
   
  e.
  All metal ions will precipitate at the same time.
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JAYBJAYB
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6 years ago
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geruff Author
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6 years ago
Good timing, thanks!
momochiime
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
Turboturner
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2 hours ago
You make an excellent tutor!
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