Answer
The amount of reaction that occurs is equal to 0.0790 mol.
Work Step by Step
Molar Mass ($NO$):
14.01* 1 + 16* 1 = 30.01g/mol
1. Calculate the amount in moles:
$4.73g \times \frac{1 mol (NO)}{ 30.01} = 0.158 mol$
2. Divide the amount by the coefficient of $NO$:
$\frac{0.158}{ 2} = 0.0790 mol - reaction$
