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5. You have been asked by the city of Sudbury to evaluate the success of a recent mine reclamation project. Before treatment, aqueous Ni concentrations were an outstanding 0.045 mol/L! In order to meet guidelines, Ni concentrations may be no higher than 2.0 mmol/L. After treatment with calcium carbonate,aqueous Ni concentrations drop by 2600 mg/L. Was the treatment successful and what is the new Ni-concentration? (MN₁ = 58.69g/mol) a) no, [Ni]= 0.70 nmol/L b) yes. [Ni]=0.041 g/L d) no, [Ni]= 41 mg/L c) yes, [Ni]= 0.70 mol/L

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