Unit 1 PPA - Colorimetric Determination of Manganese in Steel

snowred-orange
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Note on Unit 1 PPA - Colorimetric Determination of Manganese in Steel, created by snowred-orange on 05/06/2013.

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snowred-orange
Created by snowred-orange almost 6 years ago
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Page 1

Aim - To use colorimetry to find the percentage of manganese, by mass, in a steel paper clip.

Method  - Colorimetry finds conc.s of coloured substances in solution.Colorimeter consists of light source, coloured filter, light detector + recorder.Colour filter chosen in complementary colour to solution for max absorbance.Light passes through filter, then coloured solution. Diff in absorbance between coloured solution and water is noted as an "absorbance value".hj

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