Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of 0.0047 M·s *: 2 NH; (g) → N, (g) + 3 H, (3) Suppose a 400. mL flask is charged under these conditions with 400. mmol of ammonia. How much is left 50. s later? You may assume no other reaction is important. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.

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