Consider this reaction:
2NH3 (g) → N2 (g) + 3H2 (g)
At a certain temperature it obeys this rate rate = (0.318 s-1)[NH3] Suppose a vessel contains NH3 at a concentration of 1.26 M. Calculate the concentration of NH3 in the vessel 2.90 seconds later. You may assume no other reaction is important.
Round your answer to 2 significant digits.
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