124. Solving a chemistry problem
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124. Solving a chemistry problem
The content of copper in semiconductor materials is 1*10-6%. What minimum ελ should a copper complex compound have in its photometric determination, if the sample weight does not exceed 1.0 g, the volume of the measured solution is 5 ml, the cuvette with I=5 cm, the optical density Amin=0.020?
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