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March 31, 2015

March 31, 2015

Posted by **HELP** on Monday, October 1, 2012 at 8:38pm.

A. Concentrations of zinc

B. Concentration of copper

C. Concentration of lead

D. Concentration of mercury

- Chem -
**DrBob222**, Tuesday, October 2, 2012 at 12:02amZn = 6.42E-2 mM = 0.0642 mM = 0.0000642 M = 0.0000642 mols/L.

grams = mols x atomic mass which gives you grams/L and that x 1000 converts to mg/L.

- Chem -
**Anonymous**, Monday, October 6, 2014 at 11:20pmhelp me

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