
Concept explainers
Write three relationships (equalities) based on the mole concept for each of the following elements:
a. phosphorus
b. aluminum
c. krypton

(a)
Interpretation:
The three relationships (equalities) based on the mole concept for given elements are to be stated.
Concept introduction:
Molar mass is the sum of the atomic masses of all the atoms present in the chemical formula of any compound. One mole of substance contains
Answer to Problem 2.44E
The three relationships (equalities) based on the mole concept for given element are,
Explanation of Solution
The molar mass of phosphorus is
The conversion factor corresponding to the given relationship is,
One mole of phosphorus contains
The conversion factor corresponding to the given relationship is,
From the equalities (1) and (2), the mass of
The conversion factor corresponding to the given relationship is,
The three relationships (equalities) based on the mole concept for given element are,

(b)
Interpretation:
The three relationships (equalities) based on the mole concept for given element are to be stated.
Concept introduction:
Molar mass is the sum of the atomic masses of all the atoms present in the chemical formula of any compound. One mole of substance contains
Answer to Problem 2.44E
The three relationships (equalities) based on the mole concept for given element are,
Explanation of Solution
The molar mass of aluminum is
The conversion factor corresponding to the given relationship is,
One mole of aluminum contains
The conversion factor corresponding to the given relationship is,
From the equalities (1) and (2), the mass of
The conversion factor corresponding to the given relationship is,
The three relationships (equalities) based on the mole concept for given element are,

(c)
Interpretation:
The three relationships (equalities) based on the mole concept for given element are to be stated.
Concept introduction:
Molar mass is the sum of the atomic masses of all the atoms present in the chemical formula of any compound. One mole of substance contains
Answer to Problem 2.44E
The three relationships (equalities) based on the mole concept for given element are,
Explanation of Solution
The molar mass of krypton is
The conversion factor corresponding to the given relationship is,
One mole of krypton contains
The conversion factor corresponding to the given relationship is,
From the equalities (1) and (2), the mass of
The conversion factor corresponding to the given relationship is,
The three relationships (equalities) based on the mole concept for given element are,
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