Written by Arturo Objectives: To determine the amount of iron in a vitamin tablet using visible spectrometry. Introduction Many compounds form colored solutions. Potassium permanganate solutions are purple, many copper(II) solutions are blue, and most nickel(II) solutions are green. If a solution is colored, a species within it is absorbing part of light in the visible region. A graph of absorbance, the amount of light absorbed by a species at different wavelengths is called an absorption spectrum. A similar graph may be […]
