Concept explainers
(a)
Interpretation:
A portion of the polymer made from tetrafluoroethylene (Teflon) needs to be drawn.
Concept introduction:
A polymer is a long chain consists of large number of monomer units. In a polymer, the monomers are linked to each other in a continuous or repetitive manner. These monomer units are linked to each other either through the formation of peptide linkage, glycosidic linkage or by removal of any moiety such as a water molecule. Polyvinyl chloride, Bakelite and polystyrene are some of the examples of the
(b)
Interpretation:
The molar mass of Teflon molecule containing
Concept introduction:
A polymer is a long chain consists of large number of monomer units. In a polymer, the monomers are linked to each other in a continuous or repetitive manner. These monomer units are linked to each other either through the formation of peptide linkage, glycosidic linkage or by removal of any moiety such as a water molecule. Polyvinyl chloride, Bakelite and polystyrene are some of the examples of the polymers. Tetrafluoroethylene polymer (Teflon) consists of large number of monomer units of 1,1,2,2-tetrafloroethylene in it.
(c)
Interpretation:
The mass percent of C and F in the Teflon polymer needs to be determined.
Concept introduction:
Mass percent of an atom present in the sample can be determined by dividing mass of atom present in the monomer to the overall mass of the monomer units and multiplying the overall result with 100%.
For example, the mass percent of x g of an atom present in the y g of monomer units can be determined as:
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Chapter 23 Solutions
Chemistry: Principles and Reactions
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- 1.) When 3.065 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 9.616 grams of CO2 and 3.937 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 70.13 g/mol. Determine the empirical formula and the molecular formula of the hydrocarbon. 2.) When 3.774 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 12.76 grams of CO2 and 2.612 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 26.04 g/mol. Determine the empirical formula and the molecular formula of the hydrocarbon. 3.) A 8.727 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 12.38 grams of CO2 and 7.601 grams of H2O are produced. In a separate experiment, the molar mass is found to be 62.07 g/mol. Determine the empirical formula and the molecular formula of the organic compound.arrow_forwardWrite a chemical equation for the combustion of 1 mol of pentane gas, C5H12(g), to form Carbon dioxide gas and water.arrow_forwardGIVE FIVE (5) EXAMPLES OF COMBUSTION REACTIONS OF ORGANIC COMPOUNDS AND BALANCE THOSE REACTIONS.arrow_forward
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