Chemical Principles: The Quest for Insight
7th Edition
ISBN: 9781464183959
Author: Peter Atkins, Loretta Jones, Leroy Laverman
Publisher: W. H. Freeman
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Chapter F, Problem F.4E
(a)
Interpretation Introduction
Interpretation:
Formula of lithium sulfide has to be given.
(b)
Interpretation Introduction
Interpretation:
The element that occurs with more mass percentage in lithium sulfide has to be identified.
Concept Introduction:
Mass percentage composition of the individual elements can be calculated if the formula of the compound containing the elements is known. Mass percentage of an element is calculated using the formula given below;
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. A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated temperature to yield 0.692 g H2O and 3.381 g CO2.(a) Calculate the masses of C and H in the sample.(b) Does the compound contain any other elements?(c) What are the mass percentages of C and H in thecompound?(d) What is the empirical formula of the compound?
A 0.500 g sample of tin foil reacted with oxygen to give 0.635 g of product. (a) What is the empirical formula of the tin oxide? (b) What is the percent by mass of tin and the percent by mass of oxygen in the sample?
A 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?
Chapter F Solutions
Chemical Principles: The Quest for Insight
Ch. F - Prob. A.1ASTCh. F - Prob. A.1BSTCh. F - Prob. A.2ASTCh. F - Prob. A.2BSTCh. F - Prob. A.3ASTCh. F - Prob. A.3BSTCh. F - Prob. A.4ASTCh. F - Prob. A.4BSTCh. F - Prob. A.5ASTCh. F - Prob. A.5BST
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