Answers: 3
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 23:30
If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+
Answers: 1
Chemistry, 23.06.2019 08:00
How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate
Answers: 1
What exactly is arsenic and what is it usted for...
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Biology, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00
Mathematics, 25.02.2021 23:00