Chemistry

Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen 14) monoxide and oxygen according to the following chemical equation.
2 NO2(g) → 2 NO(g) + O2(g). A sample of NO2(g) is initially placed in a 2.50-L reaction vessel at 300°C. If the half-life and
the rate constant at 300°C are 11 seconds and 0.54 M-1 s-1, respectively, how many moles of NO2 were in the original sample?

  1. 👍 0
  2. 👎 0
  3. 👁 1,903
  1. .084 mols

    1. 👍 0
    2. 👎 0
  2. .84 mol

    1. 👍 1
    2. 👎 0
  3. .42 other 2 are wrong didnt account for mole ratios

    1. 👍 2
    2. 👎 0

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