Nitric oxide (NO) is made from the oxidation of NH3 according to the equation 4 NH3 + 5 O2 → 4 NO + 6 H2O .?

If an 11.11 g sample of NH3 gives 10.7 g of NO, what is the percent yield? 1. 14% 2. 45% 3. 55% 4. 98% 5. 100%