CHM211H5 Study Guide - Quiz Guide: Stability Constants Of Complexes, Molar Attenuation Coefficient, Equilibrium Constant
Document Summary
Carbon monoxide is a light, colorless, odourless, tasteless gas that is toxic to humans when exposed to it in high concentrations. In this experiment, the finding of the stability constant of the complex ion [fe(scn)]+2 is made easier with the aid of the spectrophotometer. This instrument uses a specific wavelength to measure the amount of light a sample can absorb. The two equations necessary for this experiment are: After combining the reactants, the resulting mixture, containing fe(scn)+2 ions, appeared an orange-ish red color to the eyes. This should be the result because the wavelength entered into the spectrophotometer, 447 nm, was done so because it corresponds to the blue-violet ultraviolet wavelength range, which absorbs red colors. Moreover, the lab manual clearly stated that the resulting fe(scn)+2 should turn a blood-red color. 3. A higher concentration of fe(scn)+2 also seemed to correlate with a higher level of absorbance.
