Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 23, Problem 2QAP
Interpretation Introduction
(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
Interpretation Introduction
(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.
Interpretation Introduction
(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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(a) What is a hydrocarbon? (b) Butane is the alkane with a chain of four carbon atoms. Write a structural formula for this compound and determine its molecular and empirical formulas.
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(i)
Write a balanced equation for this reaction.
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Calculate the percentage yield of the reaction if 500.0 g of carbon monoxide reacts with excess hydrogen and
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21. (a) Write the balanced chemical equation for the combustion of propane (C3H3). How does the potential
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diagram for this chemical reaction. (c) What is the relationship between these energy changes and the
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remember to use vocabulary terms.
Chapter 23 Solutions
Chemistry: Principles and Reactions
Ch. 23 - Prob. 1QAPCh. 23 - Prob. 2QAPCh. 23 - Prob. 3QAPCh. 23 - Prob. 4QAPCh. 23 - Prob. 5QAPCh. 23 - Prob. 6QAPCh. 23 - Prob. 7QAPCh. 23 - Prob. 8QAPCh. 23 - Prob. 9QAPCh. 23 - Prob. 10QAP
Ch. 23 - Prob. 11QAPCh. 23 - Prob. 12QAPCh. 23 - Prob. 13QAPCh. 23 - Prob. 14QAPCh. 23 - Prob. 15QAPCh. 23 - Prob. 16QAPCh. 23 - Prob. 17QAPCh. 23 - Prob. 18QAPCh. 23 - Prob. 19QAPCh. 23 - Prob. 20QAPCh. 23 - How many chiral carbon atoms are there in ...Ch. 23 - How many chiral carbon atoms are there in sucrose?...Ch. 23 - Prob. 23QAPCh. 23 - Give the structural formulas of two different...Ch. 23 - (a) How many tripeptides can be made from glycine,...Ch. 23 - Prob. 26QAPCh. 23 - Prob. 27QAPCh. 23 - Prob. 28QAPCh. 23 - For alanine, Ka1=5.1105,Ka2=1.81010 . Calculate...Ch. 23 - Prob. 30QAPCh. 23 - On complete hydrolysis, a polypeptide gives two...Ch. 23 - Prob. 32QAPCh. 23 - Prob. 33QAPCh. 23 - Prob. 34QAPCh. 23 - Prob. 35QAPCh. 23 - Prob. 36QAPCh. 23 - Prob. 37QAPCh. 23 - Prob. 38QAPCh. 23 - Prob. 39QAPCh. 23 - Prob. 40QAPCh. 23 - Prob. 41QAPCh. 23 - Sketch the form in which leucine would exist in...Ch. 23 - How many tripeptides could one make from glycine,...Ch. 23 - A 1.00-mg sample of a pure protein yielded on...Ch. 23 - Describe what is meant by (a) the primary...Ch. 23 - Glycolysis is the process by which glucose is...Ch. 23 - Plants synthesize carbohydrates from CO2 and H2O...Ch. 23 - Prob. 48QAPCh. 23 - Prob. 49QAPCh. 23 - Prob. 50QAPCh. 23 - Prob. 51QAPCh. 23 - Aspartic acid acts as a triprotic acid with...
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- Write a balanced chemical equation for the complete combustion of pentene, C7H14.In combustion, pentene reacts with oxygen to produce carbon dioxide and water.arrow_forward(d) Ethanol can be made by the reaction of ethene with steam. C,H,+ H,0 → C,H,OH 4. Calculate the mass of ethanol that can be made from 1.0 kg of ethene. (Relative atomic masses: A,: C, 12; H, 1: 0, 16.) Show your working in the box.arrow_forward(b) 1.9-BBN 2. H₂O2, KOHarrow_forward
- parts (a) and (c) pleasearrow_forwardThe relative mass of propylene (C₃H₆) is 42.1 g/mol. How many carbon atoms does a polypropylene molecule with a molar mass of 42.1 kg/mol contain?arrow_forwardA compound is composed of carbon, hydrogen, nitrogen and oxygen. When a 1.500-g sample of the compound is completely combusted, it yields 1.476 g of CO2and 0.605 g of H2O. In a separate analysis to determine nitrogen, 1.500 g of the compound is found to produce 0.313 g of N2. (a) Calculate the mass percent of each element in the compound. (b) Determine the empirical formula of the compound. (c) If the compound has a molar mass of 134 g/mol, what is the molecular formula?arrow_forward
- Citric acid (C6H8O7) is made by fermentation of sugars such as sucrose (C12H22O11) in air. Oxygen is consumed and water generated as a by-product.(a) Write a balanced equation for the overall reaction that occurs in the manufacture of citric acid from sucrose.(b) What mass of citric acid is made from 15.0 kg sucrose?arrow_forwardGive the name and formula of the compound formed from the following elements: (a) cesium and bromine; (b) sulfur and bar-ium; (c) calcium and fluorine.arrow_forward(A) Write the balanced chemical equation for the formation of butane (C4H10). How does the potential energy change between the reactants and products in this reaction? (B) draw a potential energy diagram for this chemical reaction. (C) what is the relationship between energy changes and the breakdown and/or formation of covalent bonds? Explain your ideas in at least two sentences and remember to use vocabulary terms.arrow_forward
- Write a chemical equation for the combustion of 1 mol of pentane gas, C5H12(g), to form Carbon dioxide gas and water.arrow_forward1.) 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_forwardGrignard reagents, which contain a C—Mg bond, have thegeneral formula CH₃—(CH₂)ₓ—MgBr and are essential in thesynthesis of organic compounds. (a) Calculate the mass percentof Mg if x=0. (b) Calculate the mass percent of Mg if x=5. (c) Calculate the value of xif the mass percent of Mg is 16.5%arrow_forward
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