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owLv2] Online teaching Sign In or Sign Up X Chec New Tab sjc.cengagenow.com/ilrn/takeAssignment/takeCovalentActivity.do?locatore assignment-take&takeAssignmentSessionLocator-; assignment-take References) Use the References to access important values if needed for this question The decomposition of ammonia on a tungsten surface at 1100 °C is zero order in NHs with a rate constant of 3.4010 Ms If the inital concentration of NH, is 1.15-102 MM,the concentration of NH, will be M after 2.85 101 seconds have passed Submit Answer Try Another Version 1 item attempt remaining

Explanation / Answer

Rate constant k = 3.40*10^-6 M/s

Initial concentration [A0] = 1.15 x 10^-2 M

Time t = 2.85*10^3 s

For zero order reaction

[A0] - [A] = kt

[A] = [A0] - kt

= 1.15 x 10^-2 - 3.40*10^-6 x 2.85*10^3

= 0.00181 M

= 1.81*10^-3 M

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