14. When determining iron in an aluminum alloy to construct a calibration graph, the following results were obtained: the mass fraction ω0Fe = 23% corresponded to ΔS = 0, and the mass fraction ω0Fe = 0.97% corresponded to ΔS1 = 0.27%. Construct a calibration graph and determine the mass fraction (%) of iron in the sample under study if ΔSx = 0.32

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