Chemistry lab question:

Question

my lab: Percent Copper in Brass by using spectroscopy

I have Copper(II) nitrate solution

           Copper(II) sulfate solution

          Iron(III) nitrate solution

          Iron(III) chloride solution

          Zinc nitrate solution

          Zinc sulfate solution 

There is question of the guided inquiry:

Compare the visible spectra for the metal salt solution studied by the class.

1. For each solution ,determine the species (cation and/ anion) that is responsible for the absorbance spectrum. Explain your reasoning

Answer 1

Dear Qing,

 

Without being able to see the spectrum (spectra) there's no way I can answer this question.  No doubt the concentrations of cation and/or anion can be determined by Beer's Law, but I can't say anything beyond that without being able to see the spectrum or spectra.

 

William S.

Aliquippa, PA