Unit 1 PPA - Colorimetric Determination of Manganese in Steel

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Note on Unit 1 PPA - Colorimetric Determination of Manganese in Steel, created by snowred-orange on 06/05/2013.
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Note by snowred-orange, updated more than 1 year ago
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Created by snowred-orange almost 12 years ago
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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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