22. Solving a chemistry problem
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22. Solving a chemistry problem
3. Determine the silver content in copper castings from the measured blackening of analytical lines in the spectra of the sample and standard samples:
Sample CAg, % Sag SCu ∆S
Standard 1 0.18 0.41 0.64
Standard 2 0.23 0.45 0.66
Standard 3 0.4 0.55 0.65
Standard 4? -0.18
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