In the complete combustion of C₃H₈O₃,how many moles of carbon dioxide are produced when 23.0 g of C₃H₈O₃ burns?

Question

Quizplus · Accepted Answer

To determine the number of moles of carbon dioxide produced, we need to first write the balanced chemical equation for the combustion of C₃H₈O₃: C₃H₈O₃ + 21O2 → 18H2O + 13CO2 From the equation, we can see that 13 moles of CO2 are produced for every 1 mole of C₃H₈O₃ that burns. Next, we need to determine how many moles of C₃H₈O₃ we have. Using the molar mass of the compound, which is 162 g/mol, we can convert the given mass of 23.0 g to moles: 23.0 g C₃H₈O₃ = 0.142 mol C₃H₈O₃ 162 g/mol Finally, we can use stoichiometry to calculate the number of moles of CO2 produced: 0.142 mol C₃H₈O₃ × 13 mol CO2 = 1.85 mol CO2 1 mol C₃H₈O₃ The closest answer choice is B) 0.750 mol, which is the answer rounded to three significant figures.

In the Complete Combustion of C3H8O3,how Many Moles of Carbon

In the Complete Combustion of C₃H₈O₃,how Many Moles of Carbon