Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas.How many grams of nitrogen are formed when 30.00 g of dinitrogen monoxide decomposes?

Question

Quizplus · Accepted Answer

The balanced equation for the decomposition of dinitrogen monoxide (N2O) is 2 N2O → 2 N2 + O2. The molar mass of N2O is 44.01 g/mol, and the molar mass of N2 is 28.02 g/mol. From 30.00 g of N2O, the moles of N2O are 30.00 g / 44.01 g/mol = 0.6818 mol. Since 2 moles of N2O produce 2 moles of N2, 0.6818 mol of N2O will produce 0.6818 mol of N2. The mass of N2 formed is 0.6818 mol × 28.02 g/mol = 19.09 g.

Dinitrogen Monoxide Gas Decomposes to Form Nitrogen Gas and Oxygen