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A sample of ammonia gas was allowed to come to equalibrium at 400k. 2NH3(g) <--> N2(g) + 3H2(g) At equalibrium, it was found that the concentration of H2 was 0.0584 M, the concentration of N2 was 0.0195 M and the concentration of NH3 was 0.430 M. What was the initial concentration of ammonia? Please show all steps with significant figures

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