142. Solving a chemistry problem

142. Solving a chemistry problem

3. Zinc (P) with ligand L forms a product that is highly absorbent at 600 nm. With a fivefold and greater excess L, the optical density
depends only on the concentration of the cation. Neither zinc (II) nor L absorb at 600 nm. The optical density of the solution containing
1.6-10-4 M zinc (II) and 1.0 ~ 10-3 M L, measured in a 1 cm cuvette at 600 nm, is 0.464. Calculate: a) the transmission of this solution in
percent; b) the percent transmission of this solution at a layer thickness of 2.50 cm; c) the thickness of the layer necessary to equalize the optical
the density of the solution (a) with the optical density of the solution with a complex concentration of 4.0-10-4 M and a layer thickness of 3 cm.

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