Answers: 1
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.
Answers: 3
Chemistry, 22.06.2019 22:30
Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h
Answers: 1
Chemistry, 23.06.2019 00:00
How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?
Answers: 3
What is the net ionic equation for the reaction that occurs when aqueous solutions of koh and hno3 a...
English, 01.11.2020 22:30
Mathematics, 01.11.2020 22:30
Social Studies, 01.11.2020 22:30
English, 01.11.2020 22:30
Mathematics, 01.11.2020 22:30
Computers and Technology, 01.11.2020 22:30
English, 01.11.2020 22:30
History, 01.11.2020 22:30
Mathematics, 01.11.2020 22:30
Mathematics, 01.11.2020 22:30