Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 3, Problem 38QAP
Determine the simplest formulas of the following compounds:
(a) tetraethyl lead, the banned gasoline anti-knock additive, which is composed of 29.71% C, 6.234% H, and 64.07% Pb
(b) citric acid, present in most sour fruit, which is com- posed of 37.51% C, 4.20% H, and 58.29% O
(c) cisplatin, a drug used in chemotherapy, which is composed of 9.34% N, 2.02% H, 23.36% Cl, and 65.50% Pt
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1,Polymers are large molecules composed of simple units repeated many times. Thus, they often have relatively simple empirical formulas. Calculate the empirical formulas of the following polymers:
(a) Lucite (Plexiglas); 59.9% C, 8.06% H, 32.0% O
(b) Saran; 24.8% C, 2.0% H, 73.1% Cl
Glycine, an amino acid used by organisms to make proteins,is represented by the following molecular model.(a) Write its molecular formula.(b) Determine its molar mass.(c) Calculate how many moles of glycine are in a 100.0-gsample of glycine.(d) Calculate the percent nitrogen by mass in glycine.
Determine the simplest formulas of the following compounds:
(c) nicotine, which has the composition 74.0% C, 8.65% H, and 17.4% N
Chapter 3 Solutions
Chemistry: Principles and Reactions
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