
Concept explainers
(a)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of sodium that is mentioned first in the formula of sodium azide,
Explanation of Solution
Given compound is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of sodium and mass of sodium azide in the above expression.
Thus, the percent by mass of sodium that is mentioned first in the formula of sodium azide,
(b)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of copper that is mentioned first in the formula of copper (II) sulfate,
Explanation of Solution
Given compound is
The mass of
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of copper and mass of copper (II) sulfate in the above expression.
Thus, the percent by mass of copper that is mentioned first in the formula of copper (II) sulfate,
(c)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of gold that is mentioned first in the formula of gold (III) chloride,
Explanation of Solution
Given compound is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of gold and mass of gold (III) chloride in the above expression.
Thus, the percent by mass of gold that is mentioned first in the formula of gold (III) chloride,
(d)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of silver that is mentioned first in the formula of silver nitrate,
Explanation of Solution
Given compound is
The mass of
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of gold and mass of gold (III) chloride in the above expression.
Thus, the percent by mass of silver that is mentioned first in the formula of silver nitrate,
(e)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of rubidium that is mentioned first in the formula of rubidium sulfate,
Explanation of Solution
Given compound is
The mass of
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of rubidium and mass of rubidium sulfate in the above expression.
Thus, the percent by mass of rubidium that is mentioned first in the formula of rubidium sulfate,
(f)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of sodium that is mentioned first in the formula of sodium chlorate,
Explanation of Solution
Given compound is
The mass of
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of sodium and mass of sodium chlorate in the above expression.
Thus, the percent by mass of sodium that is mentioned first in the formula of sodium chlorate,
(g)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of nitrogen that is mentioned first in the formula of nitrogen triiodide,
Explanation of Solution
Given compound is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of nitrogen and mass of nitrogen triiodide in the above expression.
Thus, the percent by mass of nitrogen that is mentioned first in the formula of nitrogen triiodide,
(h)
Interpretation:
The percent by mass of the element that is mentioned first in the formula of the given compound is to be stated.
Concept Introduction:
The mass percent composition shows the relative amount of each and every element present in the compound.
The mass percent of any element in the given compound is calculated by the formula,

Answer to Problem 119AP
The percent by mass of cesium that is mentioned first in the formula of cesium bromide,
Explanation of Solution
Given compound is
The mass of
The mass of
Thus, the total mass of
The mass percent of an element present in the compound is calculated by the formula,
Substitute the respective values of mass of cesium and mass of cesium bromide in the above expression.
Thus, the percent by mass of cesium that is mentioned first in the formula of cesium bromide,
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Chapter 8 Solutions
Introductory Chemistry: A Foundation
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