Concept explainers
Determine the number of representative particles in each substance.
a. 4.45 molOf
b. 0.250 mol of
(a)
Interpretation:
The number of representative particles needs to be determined in
Concept introduction:
Representative particles can be atoms, molecules, formula units or ions, depending on the nature of the substance. The standard unit used to represent the amount of a substance is the mole, where a mole contains
Answer to Problem 91A
The number of representative particles in the given amount of
Explanation of Solution
The given number of moles of
Since, in 1 mol a substance there are
Thus, the number of representative particles in glucose is
(b)
Interpretation:
Number of representative particles is to be determined in
Concept introduction:
Representative particles can be atoms, molecules, formula units or ions, depending on the nature of the substance. The standard unit used to represent the amount of a substance is the mole, where a mole contains
Answer to Problem 91A
The number of representative particles present is
Explanation of Solution
The given number of mole of
Since, in 1 mol of substance there are
(c)
Interpretation:
Number of representative particles is to be determined in
Concept introduction:
Representative particles can be atoms, molecules, formula units or ions, depending on the nature of the substance. The standard unit used to represent the amount of a substance is the mole, where a mole contains
Answer to Problem 91A
The number of representative particles in the given amount of hydrogen is
Explanation of Solution
The given number of moles of H atom is 2.24 mol. Since, 1 mol of H will have
Thus, the number of atoms of H in 2.24 mol of hydrogen will be:
=
Thus, the number of H atom is
(d)
Interpretation:
Number of representative particles needs to be determined in
Concept introduction:
Representative particles can be atoms, molecules, formula units or ions, depending on the nature of the substance. The standard unit used to represent the amount of a substance is the mole, where a mole contains
Answer to Problem 91A
The number of representative particles in the given amount of zinc is
Explanation of Solution
The given number of moles of Zn atom is 9.56 mol. Since, 1 mol of Zn will have
=
Thus, the number of Zn atom is
Chapter 10 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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