23. The rate constant for decomposition of azomethane at 425°C is 0.68 s"!. CH,N=NCH,(g) N;(g) + C,H,(g) a) Based on the units of the rate constant, is the reaction zeroth-, first-, or second-order? b) If2.0 g azomethane is placed in a 2.0-L flask and heated to 425°C, what mass of azomethane remains after 5.0 s? ) How long does it take for the mass of azomethane to drop to 0.24 g? d) What mass of nitrogen would be found in the flask after 0.50 s of reaction?

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