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The gas phase decomposition of N2O5(g)  àNO3(g) + NO2(g) is studied at a certain temperature, giving the...

  1. The gas phase decomposition of N2O5(g)  àNO3(g) + NO2(g) is studied at a certain temperature, giving the following data:

Time (s)

[N2O5] (M)

0.0

1.000

50.0

0.677

100.0

0.458

150.0

0.310

200.0

0.210

  1. Is the overall order of reaction zeroth, first or second order?  
  2. What is the rate constant (include units)?
  3. Calculate half-life (in s) for this reaction given the initial concentration in the table.
  4. What is the concentration of N2O5 (in M) at 250. s?
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