Convert 150 grams of nitrogen to mols

150 g of nitrogen = 5.35 mol of nitrogen

The formula of nitrogen is N_2.

Molar mass = 2 × 14.007 g/mol= 28.014 g/mol

Moles of N_2 = 150 g N_2 × (1 mol N_2/28.014 g N_2) = 5.35 mol N_2

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

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explanation:

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