(a)
Interpretation:
Mass of water in
Concept Introduction:
Mass percent is one of the commonly used concentration terms to determine concentration of any species. The expression for mass percent of any species present in sample is as follows:
(a)
Answer to Problem 20PE
Mass of water in
Explanation of Solution
Molecular mass of
Substitute 6 for number of molecules of water and
The formula to calculate mass percent of water is as follows:
Substitute
Hence, mass percent of water in
The formula to calculate mass of water is as follows:
Substitute
Hence, mass of water in
(b)
Interpretation:
Mass of anhydrous compound of
Concept Introduction:
Compound that does not contain any water molecule is termed as anhydrous compound. Mass of anhydrous compound is calculated as follows:
(b)
Answer to Problem 20PE
Mass of anhydrous compound is
Explanation of Solution
The expression used to calculate mass of anhydrous compound is as follows:
Substitute
Hence, mass of anhydrous compound is
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Chapter 13 Solutions
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
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