anonymous
  • anonymous
Reaction between Br- and H2O2 in acidic medium is please answer fast
Chemistry
chestercat
  • chestercat
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Cuanchi
  • Cuanchi
several examples of the catalytic decomposition of hydrogen peroxide, H2O2, according to the net reaction 2 H2O2 → 2 H2O + O2 In acidic solution, bromide ion, Br–, also acts as a catalyst, according to the following two step mechanism: (1) 2 Br– + 2 H+ + H2O2 → Br2 + 2 H2O (2) Br2 + H2O2 → 2 Br– + 2 H+ + O2 https://www.dartmouth.edu/~genchem/0102/spring/6winn/pdfs/Exam1Sol.pdf
anonymous
  • anonymous
cuanchi can you tell the answer options; unimoleular , bimolecular , trimolecular lease give explanation for your answer
Cuanchi
  • Cuanchi
Sorry, I can't give the answers it is not allowed in this website, I may be suspended. I may give you hints or references for you to figure out the answers or verify if your answer is correct http://onlinelibrary.wiley.com/doi/10.1002/kin.550151206/abstract Abstract The reactions of Cl and Br atoms with H2O2 have been studied in the range of 300–350 K using the very-low-pressure-reactor technique. It was found that metathesis to produce HX and HO2 is the only significant process (≤99%). For the reaction of Br equation image k2 (300 K) = 1.3 ± 0.45 × 10−14 and k2 (350 K) = 3.75 ± 1.1 × 10−14 cm3/molecules·s, with an activation energy of 4.6 ± 0.7 kcal/mol. Using an estimated A factor for A2, we find equation image suggesting that a best choice is E2 = 3.9 ± 0.4 kcal/mol. The relation of these values to ΔHmath image (HO2) is discussed.

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Cuanchi
  • Cuanchi
Sorry, I can't give the answers it is not allowed in this website, I may be suspended. I may give you hints or references for you to figure out the answers or verify if your answer is correct http://onlinelibrary.wiley.com/doi/10.1002/kin.550151206/abstract Abstract The reactions of Cl and Br atoms with H2O2 have been studied in the range of 300–350 K using the very-low-pressure-reactor technique. It was found that metathesis to produce HX and HO2 is the only significant process (≤99%). For the reaction of Br equation image k2 (300 K) = 1.3 ± 0.45 × 10−14 and k2 (350 K) = 3.75 ± 1.1 × 10−14 cm3/molecules·s, with an activation energy of 4.6 ± 0.7 kcal/mol. Using an estimated A factor for A2, we find equation image suggesting that a best choice is E2 = 3.9 ± 0.4 kcal/mol. The relation of these values to ΔHmath image (HO2) is discussed.

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