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Researchers obtained the following data from experiments to find the molecular formula
Chapter 3, Problem 134(choose chapter or problem)
Researchers obtained the following data from experiments to find the molecular formula of benzocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 3.54 g sample of benzocaine with excess O2 formed 8.49 g of CO2 and 2.14 g H2O . Another sample of mass 2.35 g was found to contain 0.199 g of N. The molar mass of benzocaine was found to be 165 g>mol. Find the molar formula of benzocaine.
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QUESTION:
Researchers obtained the following data from experiments to find the molecular formula of benzocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen. Complete combustion of a 3.54 g sample of benzocaine with excess O2 formed 8.49 g of CO2 and 2.14 g H2O . Another sample of mass 2.35 g was found to contain 0.199 g of N. The molar mass of benzocaine was found to be 165 g>mol. Find the molar formula of benzocaine.
ANSWER:Problem 134Researchers obtained the following data from experiments to find the molecular formula ofbenzocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen.Complete combustion of a 3.54 g sample of benzocaine with excess 02 formed 8.49 g of and 2.14 g Another sample of mass 2.35 g was found to contain 0.199 g of N.The molar mass of benzocaine was found to be 165 g / mol. Find the molar formula ofbenzocaine. Step by step solutionStep 1 of 4From the given:The amount of the sample (benzocaine) taken =3.54 gThe amount of carbon-di-oxide formed =8.49 gThe amount of water-vapor formed =2.14 gLet’s calculate the number of moles of each compound.The number of moles of formedThe number of moles of formedThe number of moles of C;The number of moles of H;\n