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Interpretation:
From the given table, the polymer with the largest molar mass needs to be determined. Assuming the number of monomer units are same in all the
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 polymers.
Mass percent of an atom present in the sample can be determined by dividing
For example, the mass percent of x g of an atom present in the y g of monomer unit can be determined as:

Answer to Problem 8QAP
Styrene is present with highest percentage by mass of carbon.
Explanation of Solution
If all the polymers contain the same number of monomer units, the molar mass of polymers can be compared by comparing the molar mass of the monomers in it.
(1)
In the table mentioned in the problem, the 1st polymer contains ethylene as a monomer unit. Ethylene consists of 2 carbon and 4 hydrogen atoms. The molar mass can be calculated as follows:
Putting the values,
The mass percentage of carbon can be calculated as follows:
Putting the values,
(2)
The 2nd polymer shown in table consists of propylene as a monomer unit. Propylene consists of 3 carbon and 6 hydrogen atoms.
The molar mass can be calculated as follows:
Putting the values,
The mass percentage of carbon can be calculated as follows:
Putting the values,
(3)
The 3rd polymer shown in table consists of vinyl chloride as monomer unit. Vinyl chloride consists of 2 carbon and 3 hydrogen and 1 chlorine atoms.
Putting the values,
The mass percentage of carbon can be calculated as follows:
Putting the values,
(4)
The 4th polymer shown in table consists of acrylonitrile as monomer unit. Acrylonitrile consists of 3 carbon, 3 hydrogen and 1 nitrogen atoms. The molar mass can be calculated as follows:
The mass percentage of carbon can be calculated as follows:
Putting the values,
(5)
The 5th polymer shown in table consists of styrene as monomer unit. Styrene consists of 8 carbon and 8 hydrogen atoms. The molar mass can be calculated as follows:
The mass percentage of carbon can be calculated as follows:
Putting the values,
(6)
The 6th polymer shown in table consists of methyl methacrylate as monomer unit. Methacrylate consists of 2 carbon and 2 oxygen atoms. The molar mass can be calculated as follow:
Putting the values,
The mass percentage of carbon can be calculated as follows:
Putting the values,
(7)
The 7th polymer shown in table consists of tetrafluoroethylene as monomer unit. Tetrafluoroethylene consists of 2 carbon and 4 fluorine atoms. The molar mass can be calculated as follows:
Putting the values,
The mass percentage of carbon can be calculated as follows:
Putting the values,
Here, styrene consists of highest percentage by mass of carbon that is around 96 %. Thus, styrene is present with highest percentage by mass of carbon.
Thus, styrene is present with highest percentage by mass of carbon.
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Chapter 23 Solutions
OWLv2 with Student Solutions Manual eBook for Masterton/Hurley's Chemistry: Principles and Reactions, 8th Edition, [Instant Access], 4 terms (24 months)
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- Predict the products of this organic reaction: + H₂O H* ? A Specifically, in the drawing area below draw the skeletal ("line") structure of the product, or products, of this reaction. (If there's more than one product, draw them in any arrangement you like, so long as they aren't touching.) If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. No Reaction Click and drag to start drawing a structure.arrow_forwardPredict the major organic products of the reaction below and draw them on right side of the arrow. If there will be no significant reaction, check the box below the drawing area instead. C Cl CH, OH There will be no significant reaction. + pyridine G Click and drag to start drawing a structure.arrow_forwardWhat is the missing reactant in this organic reaction? H R+ H2O Δ OH 0= CH3-CH-O-CH3 + CH3-C-OH Specifically, in the drawing area below draw the condensed structure of R. If there is more than one reasonable answer, you can draw any one of them. If there is no reasonable answer, check the No answer box under the drawing area. No Answer Click anywhere to draw the first atom of your structure. dyarrow_forward
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