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Nitrogen and Hydrozen combine in the ratio of 14:3 by mass to form ammonia.What mass of Hydrozen gas would be required to react completely with 28 g of Nitrogen gas. a)2g b)28g c)3g d)24g |
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Answer» he MOLAR mass of AMMONIA is 17 g/mol.68 grams of ammonia corresponds to 17g/mol68g=4moles 4 moles of ammonia will be obtained from 24×1=2 moles of nitrogen and 24×3=6 moles of HYDROGEN. The molar masses of nitrogen and hydrogen are 28 g/mol and 2 g/mol respectively.2 moles of nitrogen corresponds to 2×28=56 grams.6 moles of hydrogen corresponds to 6×2=12 grams. |
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