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Position: Discussion forums > Bioscience biotechniques discussion forums > Proteomics and protein biochemistry forum
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Beer-Lambert law - spectrophotometry
Posted by: superfly (IP Hidden, New member, 1)
Date: March 2, 2006 06:07PM
Hi,
Can anyone help? I'm having a bit of trouble with a question posed unto me: Given that the molecular weight of copper sulphate is 159g and that molarity is defined as the gram molecular weight of a substance dissolved in 1 litre of water. Solution B = 0.039 mol dm-3 a) Express your determined percentage concentration of solution B as a molarity. b) Using this molarity and the Beer Lambert Law, calculate a value for the molar extinction coefficient of potassium permanganate.
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