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139. Solving a chemistry problem
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Uploaded: 19.05.2022
Content: При опр.rar 33,08 kB
Uploaded: 19.05.2022
Content: При опр.rar 33,08 kB
Product description
When determining the manganese content in steel by the method of three standards, the blackening of the lines of the homologous pair was measured on a microphotometer: λFe = 293.690, λMn = 293.306 nm. Determine the mass fraction (%) of manganese in steel according to the data:
Option 1
Parameter standard test sample
ω (Mn),% 0.33 0.89 3.03?
SFe 1.33 1.24 1.14 1.08
SMn 0.95 1.06 1.20 0.96
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