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Chemistry, 22.06.2019 13:30
What are the chemical names of these compounds? ke: mg3n2: reset next
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Chemistry, 22.06.2019 14:00
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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What is the volume of the solution that would result by diluting 80.00 ml of 9.13Γ10β2 m naoh to a c...
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