In the reaction 4NH3(g) + 7O2(g) → 4NO2(g) + 6H2O(g) the molar concentration of NH3 changes from 1.0 x 10–3 M at 25.0 s since the start of the experiment to 5.0 x 10–3 M at 225.0 s. What is the average reaction rate for this period in M/s?

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Q: time [H,co,] (seconds) 0.800M 1.0 0.384 M 2.0 0.185 M 3.0 0.0888 M 4.0 0.0426M

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