145. Задачка по химии №014 5614
22. The molar absorption coefficient of copper (II) dithizonate in carbon tetrachloride at λeff = 550 nm is 4.52 * 10 ^ 4. What mass fraction of copper can be determined with dithizone, if 25.00 ml of dithizonate solution in CCl4 is obtained from a sample of an alloy sample weighing 1.0000 g and the minimum optical density is 0.020 in a cell = 5.0 cm
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