340gm of mixture of N2 and H2 in the correct ratio gave a 20% yield of NH3.Mass of NH3 produced is?

or:340gm of mixture of N2 and H2 in the correct ratio gave a 20% yield of NH3.Mass of NH3 produced is?

or:340gm of mixture of N2 and H2 in the correct ratio gave a 20% yield of NH3.Mass of NH3 produced is?

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