31. Option 1 From 100.00 ml of waste water, the herbici

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Uploaded: 31.07.2019
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Product description

31. Option 1
From 100.00 ml of waste water, the herbicide, the cotoran, was extracted with chloroform. The extract was evaporated, transferred to a cuvette and titrated at 290 nm with acetic acid HClO4 T (HClO4 / koran) = 0.0003000 g / ml. Calculate the concentration of mg / l in water according to the following results:
Option 1
Optical density of the solution after adding HClO4
0.0 ml 0.4 ml 0.8 1.2 1.6 2.0 2.0 2.4 2.8
0.315 0.215 0.125 0.060 0.035 0.030 0.020 0.015

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