#12 12. Terephthalic acid, used in the production of polyester fibers and films, is composed of...
Combustion analysis of 0.6943 g of an unknown compound containing carbon, hydrogen, and oxygen, produced 1.471 g CO2 and 0.226 g H2O. Determine the molecular formula, given the molar mass is 166 g/ mol.
18. A certain form of “apple acid” is analyzed by combustion. A 0.1000 g sample of this carbonhydrogen-oxygen compound yields 0.1313 g CO2 and 0.0403 g H2O. a. What is the percent composition of C, H, and O of this apple acid? b. What is the empirical formula of this apple acid? 19. A combustion analysis of a 0.1256 g sample of polyethylene, a polymer that is used to produce food storage bags, yielded 0.3940 g CO2 and 0.1612 g...
2.516 g of a compound containing carbon, hydrogen and oxygen (CXHYOZ) is subjected to combustion analysis. The results show that 3.082 g of CO2 and 2.705 g of H2O were produced. (i). What is the empirical formula for the compound? (ii). If the molecular weight of the compound is 160.2 g/mol, what is the molecular formula of the compound?
Additional Intelligent Tutoring Exercise 6.9 A 38.40 mg sample of an organic acid composed of just carbon, hydrogen, and oxygen was burned in pure oxygen to give 37.54 mg CO2 and 7.684 mg H20 in a combustion analysis In a separate experiment, the molecular mass was determined to be 90 In a titration, 40,2 mg ofthe acid dissolved in 50 mL of ater required 14.2 mi·t·0525 NaOH for complete neutralization. Use these data to draw a reasonable Lewis structure for...
Combustion analysis 12.01 g of an unknown sample, which contains only carbon, hydrogen and oxygen, produced 14.08 g co2 and 4.32 h2o. Determine the empirical formula and molecular formula of the unknown sample, while the molar mass for the unknown sample is 150.078 g/mol. 15 pts) Combustion analysis 12.01 g of an unknown sample, which contains only carbon, hydrogen, and oxygen, roduced 14.08 g CO2 and 4.32 g H20. Determine the empirical formula and molecular formula of the unknown sample,...
I want to use combustion analysis to determine the unknown formula of a hydrocarbon that is composed of only hydrogen and carbon. For 56.0 g of the hydrocarbon, I find that 189.2 g CO2 and 77.5 g H2O are produced. a. Write the reaction equation for the combustion of an unknown hydrocarbon CXHY. b. Using the information provided, determine the empirical formula of the hydrocarbon.
3. Acrylic acid, used in the manufacture of some plastics, has the composition 50.0% C, 5.6% H, and 44.4% O by mass. What is the empirical formula? 4. Urea contains C, H, N, and O. A 2.54 gram sample of urea is found to contain 0.51 g carbon, 0.17 g of hydrogen, and 1.19 g of nitrogen. What is the empirical formula of urea? 5. Putrescine, a substance produced by decaying animals, is composed of 54.5 % carbon, 13.6% hydrogen,...
Soft drink bottles are made of polyethylene terephthalate (PET), a polymer composed of carbon, hydrogen, and oxygen. If 1.9022 g PET is burned in oxygen it produces 0.6585 g H2O and 4.0216 g CO2. What is the empirical formula of PET?
A sample containing only carbon, hydrogen, and silicon is subjected to elemental analysis. After complete combustion, a 0.7020 g sample of the compound yields 1.4 g of CO2, 0.86 g of H2O, and 0.478 g of SiO2. What is the empirical formula of the compound?
You are given a 12 g sample of a really smelly compound and told by your boss that you need to perform combustion analysis to determine the empirical formula. He tells you that the compound doesn’t contain oxygen. Holding your breath, you run the combustion analysis and find that you produced 21.41 g CO2, 14.59 g H2O and 17.51 g of N2O5. What is the empirical formula of the original compound?