Having trouble with this Excess Problem.Help!!!!!!!!!!

Consider the following reaction, which takes place in an autoclave at 250c and 800 atm.

NH3(g)+7/4 O2(g)


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1 litre of NH[size=8]3[/size] will react with 7/4 Litre of O[size=8]2[/size].
Or, put another way, 4 litres of NH[size=8]3[/size] will react with 7 Litres of O[size=8]2[/size].

Scale it up, so you use as much as possible, then see what you have left.

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