Chemistry, 09.12.2021 03:50 delawdermia27
write chemical reactions that illustrate how the HNO2/NO2 buffer neutralizes both acid and base that is added to the buffer solution
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What are the similarities of physical and chemical change ?
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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.
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An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:
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Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+
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write chemical reactions that illustrate how the HNO2/NO2 buffer neutralizes both acid and base that...
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