Chemistry
13th Edition
ISBN: 9781259911156
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Question
Chapter 2.6, Problem 2RCF
(a)
Interpretation Introduction
Interpretation:
The formula of an ionic compound Calcium iodide should be written.
Concept Introduction:
An ionic compound to be electrically neutral, the sum of the charges on the cation and anion is must be zero. If the charges on the cation and anion are numerically different, the following rule can be applied to make the compound electrically neutral.
“The subscript of the cation is numerically equal to the charge on the anion and vice versa’’
If the charges on the cation and anion numerically equal, then no subscripts need.
(b)
Interpretation Introduction
Interpretation:
The formula of an ionic compound gallium sulphide should be written.
Concept Introduction:
An ionic compound to be electrically neutral, the sum of the charges on the cation and anion is must be zero. If the charges on the cation and anion are numerically different, the following rule can be applied to make the compound electrically neutral.
“The subscript of the cation is numerically equal to the charge on the anion and vice versa’’
If the charges on the cation and anion numerically equal, then no subscripts need.
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3.
An unknown element, X, combines with chlorine to give a substance with the formula
XC14. A chlorine analysis of the substance indicates that it contains 83.47% chlorine by mass.
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1.
When hydrogen sulfide (H2S, MM = 34.08 g/mol) gas is bubbled into a solution of
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H2S 2 NaOH --> Na2S 2 H₂O
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Chapter 2 Solutions
Chemistry
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