A sample of 8.5 g NH₃on oxidation produces 4.5 g of NO.Calculate the percent yield. Reaction: 4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

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Quizplus · Accepted Answer

Theoretical yield of NO can be calculated using stoichiometry. Molar mass of NH₃ is 17 g/mol, so 8.5 g NH₃ is 0.5 mol. According to the balanced equation, 4 mol NH₃ produces 4 mol NO, so 0.5 mol NH₃ should produce 0.5 mol NO. Molar mass of NO is 30 g/mol, so theoretical yield is 0.5 mol × 30 g/mol = 15 g. Percent yield = (actual yield/theoretical yield) × 100 = (4.5 g/15 g) × 100 = 30%.

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