Opt22 molar extinction coefficient of light absorption dithizonate

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22. The molar extinction coefficient of light absorption dithizonate copper (II) in carbon tetrachloride at λeff = 550 nm is 4.52 × 10 ^ 4. What the mass fraction of copper may be determined by dithizone, unless the sample weight of the sample alloy obtained 1.0000 g of 25.00 ml dithizonate in CCl4 and the minimum optical density measured in a cuvette 0.020 l = 5.0 cm

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