Homework Help: Genera Chemistry

Posted by Kendra on Wednesday, May 26, 2010 at 12:46pm.

Nitric oxide (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a
dark-brown gas:
2NO(g) + O2(g) -> 2NO2(g)
In one experiment 0.886 moles of NO is mixed with 0.503 moles of O2.
Calculate which of the two reactants is the limiting reagent.

Please show set up of problem and show work.

Genera Chemistry - bobpursley, Wednesday, May 26, 2010 at 1:46pm
YOu need two moles of NO for each mole of O2. The mole ratio is .886/.503, which is less than 2, which means there is not enough NO. So NO is the limiting reagent.

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