why absorbance (and not %transmittance) is the important measurement in determining the concentration of a substance

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15-11-2022
Chemistry

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why absorbance (and not %transmittance) is the important measurement in determining the concentration of a substance

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contexto1005 contexto1005 · Answer 1 · 2022-11-20T01:25:44-05:00

The absorbance of a substance is a measure of how much light the substance absorbs. The transmittance of a substance is a measure of how much light the substance transmits.

The absorbance of a substance is the key measurement in determining the concentration of a substance because the absorbance of a substance is directly proportional to the concentration of the substance. The absorbance of a substance is also directly proportional to the length of the light path through the substance. The absorbance of a substance is also directly proportional to the cross sectional area of the substance. The absorbance of a substance is also directly proportional to the absorbance coefficient of the substance. The absorbance of a substance is also inversely proportional to the thickness of the substance.

The %transmittance of a substance is not the key measurement in determining the concentration of a substance because the %transmittance of a substance is inversely proportional to the concentration of the substance, length of the light path through the substance, cross sectional area of the substance and absorbance coefficient of the substance. The %transmittance of a substance is also directly proportional to the thickness of the substance.

The absorbance is more important than the transmittance in determining the concentration of a substance because the absorbance is directly proportional to the concentration of the substance, while the transmittance is not.The concentration of a light is how much light is present in a given area. The higher the concentration, the more light there is. The concentration of a light can be affected by many factors, such as the type of light, the intensity of the light, and the distance from the light source.

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