
(a)
Interpretation: The two repeating units of ABS plastic assuming the three monomer units react in a
Concept introduction: The
To determine: The structure of two repeating units of ABS plastic assuming the three monomer units react in a
(a)

Answer to Problem 154CP
Answer
The two repeating units of ABS plastic are shown in Figure 1.
Explanation of Solution
Explanation
The structure of the polymer of ABS plastic is shown in figure 1.
The reaction of Abs
Figure 1
ABS plastic is a terpolymer synthesized by polymerizing styrene, acrylonitrile and polybutadiene. The chemical formula of ABS polymer is
(b)
Interpretation: The two repeating units of ABS plastic assuming the three monomer units react in a
Concept introduction: The polymers (repeating structural units) are derived from the simple and reactive molecules, called as monomers. ABS plastic is a terpolymer of styrene, acrylonitrile and polybutadiene.
To determine: The percent by mass of acrylonitrile, butadiene and styrene in the polymer sample.
(b)

Answer to Problem 154CP
Answer
The mass percent of acrylonitrile is
The mass percent of butadiene is
The mass percent of styrene is
Explanation of Solution
Explanation
The mass percent of the three given monomers is calculated below.
Given
The mass of bromine to react completely with ABS plastic is
The mass of ABS plastic is
The molar mass of bromine is
The number of moles is calculated by the formula,
Substitute the given value of the mass and molar mass of bromine in the above expression.
Hence, each molecule in this polymer contains
Therefore,
The ABS plastic is constructed by equimolar ratio of the three molecules. Hence, each molecule is
Therefore,
The mass of acrylonitrile, styrene and butadiene is calculated as,
The molar mass of acrylonitrile is
The molar mass of butadiene is
The molar mass of styrene is
The mass of acrylonitrile, styrene and butadiene is calculated by using the formula,
Substitute the given value of the number of moles and molar mass of in the above expression.
For acrylonitrile,
For butadiene,
For styrene
Therefore,
Mass percent of acrylonitrile, styrene and butadiene is calculated as,
For acrylonitrile,
For butadiene,
For styrene
(c)
Interpretation: The two repeating units of ABS plastic assuming the three monomer units react in a
Concept introduction: The polymers (repeating structural units) are derived from the simple and reactive molecules, called as monomers. ABS plastic is a terpolymer of styrene, acrylonitrile and polybutadiene.
To determine: The relative numbers of monomer units in the given sample of ABS plastic.
(c)

Answer to Problem 154CP
Answer
The three monomer units are in
Explanation of Solution
Explanation
The relative numbers of the monomer unit in ABS sample is explained below.
On the basis of the above results it is considered that the three monomer unit’s; acrylonitrile, butadiene and styrene are present in
Want to see more full solutions like this?
Chapter 21 Solutions
EBK CHEMISTRY: AN ATOMS FIRST APPROACH
- Identify and provide a concise explanation of a specific analytical instrument capable of detecting and quantifying trace compounds in food samples. Emphasise the instrumental capabilities relevant to trace compound analysis in the nominated food. Include the specific application name (eg: identification and quantification of mercury in salmon), outline a brief description of sample preparation procedures, and provide a summary of the obtained results from the analytical process.arrow_forwardIdentify and provide an explanation of what 'Seperation Science' is. Also describe its importance with the respect to the chemical analysis of food. Provide specific examples.arrow_forward5. Propose a Synthesis for the molecule below. You may use any starting materials containing 6 carbons or less (reagents that aren't incorporated into the final molecule such as PhзP do not count towards this total, and the starting material can have whatever non-carbon functional groups you want), and any of the reactions you have learned so far in organic chemistry I, II, and III. Your final answer should show each step separately, with intermediates and conditions clearly drawn. H3C CH3arrow_forward
- State the name and condensed formula of isooxazole obtained by reacting acetylacetone and hydroxylamine.arrow_forwardState the name and condensed formula of the isothiazole obtained by reacting acetylacetone and thiosemicarbazide.arrow_forwardProvide the semi-developed formula of isooxazole obtained by reacting acetylacetone and hydroxylamine.arrow_forward
- Given a 1,3-dicarbonyl compound (R1-CO-CH2-CO-R2), indicate the formula of the compound obtaineda) if I add hydroxylamine (NH2OH) to give an isooxazole.b) if I add thiosemicarbazide (NH2-CO-NH-NH2) to give an isothiazole.arrow_forwardAn orange laser has a wavelength of 610 nm. What is the energy of this light?arrow_forwardThe molar absorptivity of a protein in water at 280 nm can be estimated within ~5-10% from its content of the amino acids tyrosine and tryptophan and from the number of disulfide linkages (R-S-S-R) between cysteine residues: Ε280 nm (M-1 cm-1) ≈ 5500 nTrp + 1490 nTyr + 125 nS-S where nTrp is the number of tryptophans, nTyr is the number of tyrosines, and nS-S is the number of disulfide linkages. The protein human serum transferrin has 678 amino acids including 8 tryptophans, 26 tyrosines, and 19 disulfide linkages. The molecular mass of the most dominant for is 79550. Predict the molar absorptivity of transferrin. Predict the absorbance of a solution that’s 1.000 g/L transferrin in a 1.000-cm-pathlength cuvet. Estimate the g/L of a transferrin solution with an absorbance of 1.50 at 280 nm.arrow_forward
- In GC, what order will the following molecules elute from the column? CH3OCH3, CH3CH2OH, C3H8, C4H10arrow_forwardBeer’s Law is A = εbc, where A is absorbance, ε is the molar absorptivity (which is specific to the compound and wavelength in the measurement), and c is concentration. The absorbance of a 2.31 × 10-5 M solution of a compound is 0.822 at a wavelength of 266 nm in a 1.00-cm cell. Calculate the molar absorptivity at 266 nm.arrow_forwardHow to calculate % of unknown solution using line of best fit y=0.1227x + 0.0292 (y=2.244)arrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningPrinciples of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning





