Answer
Please see the work below.
Work Step by Step
We know that
$8.5g\space NH_3\times \frac{1 mol\space NH_3}{17.034g\space NH_3}\times \frac{4 mol\space NO}{4 \space mol\space NH_3}\times \frac{30.01g\space NO}{1\space mol \space NO}=14.97g\space NO$