Answers: 3
Chemistry, 22.06.2019 10:10
Stage in which a typical star has completely stopped fusion
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 21:00
In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.
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Chemistry, 22.06.2019 22:30
Which of the following molecules is polar? c3h7oh c2h5cooh
Answers: 1
Write down the formulas of the following compounds: magnesium chloride, alumina, chlorine (VII) oxid...
Mathematics, 04.12.2020 22:50
Mathematics, 04.12.2020 22:50
Mathematics, 04.12.2020 22:50
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Mathematics, 04.12.2020 22:50
Mathematics, 04.12.2020 22:50