The absorbance for the red

The absorbance for the red - The absorbance for the red,...

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The absorbance for the red, yellow, diluted, and mixture of red and yellow solutions were obtained at wavelengths 350nm-540nm in 10nm increments. The absorbance differs at different wavelengths, it increases until about 520nm and then begins to decrease. Absorbance is dependent on the concentration of the solution. An absorbance value more than one indicates that more than 90% of the light at that particular wavelength is being absorbed, therefore the maximum absorbance of the red and yellow solutions occur at different wavelengths, the yellow solution being 420nm and the red solution being 520nm. The peaks occurring at different wavelengths are 1.740 for the yellow solution and 1.310 for the red solution, showing that the yellow solution is more concentrated than red with respect to the amount of light absorbed at that wavelength. The blank solution is the solvent being water and that was excluded out of the solution during calibration. When the red solution was diluted with water the
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This note was uploaded on 12/23/2010 for the course BIO 221 taught by Professor Net during the Spring '10 term at Cuyamaca College.

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