Chemistry, 27.10.2020 18:00 morganadele01
A reaction vessel for synthesizing ammonia by reacting nitrogen and hydrogen is charged with 6.29 kg of H2 and excess N2. A total of 29.2 kg of NH3 are produced. What is the percent yield of the reaction?
Answers: 3
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What produces wave a)sound b) heats c)transfer of energy d)vibrations
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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
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The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
Answers: 3
A reaction vessel for synthesizing ammonia by reacting nitrogen and hydrogen is charged with 6.29 kg...
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