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The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
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Is a pencil falling to the floor anon contact force, a force, or a contact force
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Which of the following is most likely true about water in chemical solutions?
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Which element is placed in the same period as ruthenium but has a higher atomic number than it?
A....
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