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, 23.06.2019 03:00
The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.
Answers: 3
Chemistry, 23.06.2019 03:00
Can someone me out on this question for my national 5 chemistry homework
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Chemistry, 23.06.2019 06:30
Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?
Answers: 1
Were common ocean scavengers long ago, and they are frequently found in fossilized form.
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Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30