Answer to Question #219031 in General Chemistry for BreadKitty

Question #219031

Ammonia is produced from its elements in a formation reaction. If 8.38 x 1024 molecules of ammonia are produced, how many moles of nitrogen were used?



1
Expert's answer
2021-07-20T20:38:01-0400

N2 + 3H2 = 2NH3

amount n = Number of particles N / Avogadro constant NA

According to the reaction equation for 2 mol of NH3 are needs 1 mol of H2

And then, calculate moles of H2

n of H2 "= (1\u00d7 8.38\u00d710^{24})\/(2\u00d7 6.023\u00d710^{23} )" = 6.96 moles

= 6.96 moles of N2

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