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The reaction C2H4(g) + N2O(g) -------->  CH3CHO(g) +NO(g) is first order in both C2H4 and N2O, with...

The reaction

C2H4(g) + N2O(g) -------->  CH3CHO(g) +NO(g)

is first order in both C2H4 and N2O, with k = 1.46×10-3 L (mol^-1)(s^-1) at 580°C. If 1.00 L of C2H4(g) at a concentration of 3.50×10-3 M is rapidly mixed with the same volume of N2O(g) also at a concentration of 3.50×10-3 M, what is the time (in seconds) required for the C2H4 concentration to decrease to a value of 1.06×10-3 M?

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