141. Задачка по химии №014 131

Determine the mass fraction (%) of chromium in steel, if the following results were obtained during photometry using the method of three standards
Option 1
Parameter standard test sample
ω (Mn),% 0.5 1.23 4.17?

SFe 0.07 0.29 0.86 0.73

SMn 0.27 0.15 0.27 0.33

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