The rate constant for a second-order reaction is 0.13M-s-. If the initial concentration of reactant is 0.26mol/L, how many seconds will it take for the concentration to decrease to 0.13mol/L?

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  1. The rate constant for a second-order reaction is 0.13M-s-. If the initial concentration of reactant is 0.26mol/L, how many seconds will it take for the concentration to decrease to 0.13mol/L? 

 

  1. The reaction occurs in aqueous solution: NH4+(aq) + NO2-(aq) → N2(g) + 2H2(l). The data below is obtained at 25°C.

 

[NH4+] (M)

[NO2-] (M)

Initial rate (M/s)

0.0100

0.200

3.2x10-3

0.0200

0.200

6.4x10-3

What is the order of reaction of NH4+

 

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