Answers: 1
Chemistry, 22.06.2019 14:00, hammackkatelyn60
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.
Answers: 3
Chemistry, 22.06.2019 14:40, sugardime
Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate β enzyme-substrate complex (b) enzyme + substrate βββ enzyme + products (c) enzyme + substrate βββ enzyme-substrate complex β enzyme + products (d) enzyme + substrate βββ enzyme-substrate complex β enzyme-substrate complex + products
Answers: 2
What is the chemical formula for potassium oxide...
Biology, 11.07.2019 00:30
Mathematics, 11.07.2019 00:30
Social Studies, 11.07.2019 00:30
Mathematics, 11.07.2019 00:30