48. Solving a chemistry problem

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48. Solving a chemistry problem

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10. Determine the mass fraction (%) of silicon in the alloy, if the following results were obtained during photometry using the method of three ethanols:
Parameter Reference Analyzed sample
1 2 3
W(Si),% 0.63 1.65 3.86
S Si 0.186 0.414 0.614 0.514
S Al 0.184 0.184 0.184 0.184
Answer: 2.50%.

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