would it make an electrolysis bath greenish in color?
2007-06-10 12:41:07 · 3 answers · asked by Ophelia 2 in Science & Mathematics ➔ Chemistry
copper(II) in a solution concentration of 1.0 mol/l is blue. At a concentration of 0.010 mol/l it is pale blue.In an elecrtochemical cell, copper 2+ gains 2 electrons therefore the Cu+ is created. This then produces a blue-green colour. So...Yes, the bath would be green in colour!
2007-06-10 13:03:28 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It depends on the salt and therefore the ligand. CuSO4(aq) is blue because of the (H2O)4 ligands. CuCl2(aq) is greenish-blue because of Cl- and H2O ligands. Cu(NH3)4++ is a deep brilliant electric blue, because of NH3. The ligands affect the intensity and wavelength of d-d transitons in copper.
An electrolysis (or electroplating!) bath would differ in color, depending on what you added to it.
2007-06-10 19:50:20 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋
no. Cu2+ solution is blue in color and it would not make the electrolysis bath greenish in color. it most likely to be a Fe2+ solution
2007-06-10 19:47:08 · answer #3 · answered by Dr. Eddie 6 · 1⤊ 0⤋