Some Basic Concepts of Chemistry - Result Question 51

####51. In the reaction

4NH3(g)+5O2(g)4NO(g)+6H2O(l)

When 1 mole of ammonia and 1 mole of O2 are made to react to completion,

(a) 1.0 mole of H2O is produced

[1998]

(b) 1.0 mole of NO will be produced

(c) all the oxygen will be consumed

(d) all the ammonia will be consumed

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Solution:

  1. (c) According to Stoichiometry, they should react as follow:

4NH34 moles 0.8 moles +5O25 moles 1 mole 4NO4 moles 0.8 moles +6H2O6 moles 1.2 moles 

Thus, for 1 mole of O2 only 0.8 moles of NH3 is consumed. Hence O2 is consumed completely.



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