Consider the following balanced equation. 4 NH<sub>3</sub> + 5 O<sub>2</sub> 4 NO + 6 H<sub>2</sub>O How many moles of O<sub>2</sub> are required to react with 6.9 moles of NH<sub>3</sub>?

Md Ariful Islam

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4NH3+5O2→4NO+2O  

5 moles of oxygen required to react with a mole of ammonia

Thus x mole of oxygen will react with (6.9/ 17) mole of ammonia

x={(5×6.9)/ (4×17)}

​=0.5

Hence, the number moles of O2

​ required is 0.5 mol.

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