What is the oxidation number of the metal ion in the coordinate complex [Fe(CN)6]3–?
A. NCO-
...
Answers: 2
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 of the following is true about the speed of light? it depends on the wavelength.
Answers: 3
Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
Answers: 1
Chemistry, 23.06.2019 00:30
•hydration •dissociation •dissolving which one goes to which
Answers: 1
Mathematics, 02.12.2020 19:00
Chemistry, 02.12.2020 19:00
Chemistry, 02.12.2020 19:00
Mathematics, 02.12.2020 19:00
Biology, 02.12.2020 19:00
Physics, 02.12.2020 19:00
Mathematics, 02.12.2020 19:00
Mathematics, 02.12.2020 19:00
Mathematics, 02.12.2020 19:00