25. Solving a chemistry problem

25. Solving a chemistry problem

26. For the atomic absorption determination of copper in ore, a sample of 1.0000 g was dissolved in aqua regia and the resulting solution was diluted to 100.0 ml. Determine the mass fraction of copper (%) in two ore samples based on the recordograms of the Cu 324.7 nm line (Fig. 9.18).

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