Answer to Question #55918 in General Chemistry for LK

Question

Ammonia NH3 chemically reacts with oxygen gas O2 to produce NO and H2O What mass of water is produced by the reaction of 2.76g of ammonia?

Answer 1

Answer:
4 NH₃ + 5O₂ →4 NO +6 H₂O
From the reaction we can see that from 4 moles of ammonium we get 6 moles of water.
M(NH₃) =17 g/mol;
M(H₂O) = 18g/mol;
The mass of water which is produced by the reaction we can find from the following proportion:
2.76 g of NH₃ – 4 mol * 17 g/mol
x g of H₂O – 6 mol * 18g/mol
then x = 6*18*2.79/(4*17) = 4.38 g
The mass of water which is produced by the reaction is 4.38 g.