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Concept explainers
(a)
Interpretation:
The number of positive ions and negative ions contained in 1.00 mol of given compound is to be calculated.
Concept introduction:
Ionic compounds are those compounds that have the strong electrostatic force of attraction between the oppositely charged ions. The binary ionic compounds are composed of only one cation and one anion.
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Answer to Problem 4.43E
The number of positive ions and negative ions contained in 1.00 mol of Na2O is 12.04×1023 and 6.02×1023 respectively.
Explanation of Solution
The given compound is Na2O.
One mole of Na2O compound contains two moles of Na+ cation and one mole of O2− anion. The number of atoms present in one mole is equal to
The number of Na+ cations is =2×6.02×1023=12.04×1023
The number of O2− anions is =1×6.02×1023=6.02×1023
The number of positive ions and negative ions contained in 1.00 mol of Na2O is 12.04×1023 and 6.02×1023 respectively.
The number of positive ions and negative ions contained in 1.00 mol of Na2O is 12.04×1023 and 6.02×1023 respectively.
(b)
Interpretation:
The number of positive ions and negative ions contained in 1.00 mol of given compound is to be calculated.
Concept introduction:
Ionic compounds are those compounds that have the strong electrostatic force of attraction between the oppositely charged ions. The binary ionic compounds are composed of only one cation and one anion.
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Answer to Problem 4.43E
The number of positive ions and negative ions contained in 1.00 mol of FeO is 6.02×1023 and 6.02×1023 respectively.
Explanation of Solution
The given compound is FeO.
One mole of FeO compound contains one mole of Fe2+ cation and one mole of O2− anion. The number of atoms present in one mole is equal to Avogadro’s number (6.02×1023). Therefore,
The number of Fe2+ cations is =1×6.02×1023=6.02×1023
The number of O2− anions is =1×6.02×1023=6.02×1023
The number of positive ions and negative ions contained in 1.00 mol of FeO is 6.02×1023 and 6.02×1023 respectively.
The number of positive ions and negative ions contained in 1.00 mol of FeO is 6.02×1023 and 6.02×1023 respectively.
(c)
Interpretation:
The number of positive ions and negative ions contained in 1.00 mol of given compound is to be calculated.
Concept introduction:
Ionic compounds are those compounds that have the strong electrostatic force of attraction between the oppositely charged ions. The binary ionic compounds are composed of only one cation and one anion.
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Answer to Problem 4.43E
The number of positive ions and negative ions contained in 1.00 mol of PbS2 is 6.02×1023 and 12.04×1023 respectively.
Explanation of Solution
The given compound is PbS2.
One mole of PbS2 compound contains one mole of Pb4+ cation and two moles of S2− anion. The number of atoms present in one mole is equal to Avogadro’s number (6.02×1023). Therefore,
The number of Pb4+ cations is =1×6.02×1023=6.02×1023
The number of S2− anions is =2×6.02×1023=12.04×1023
The number of positive ions and negative ions contained in 1.00 mol of PbS2 is 6.02×1023 and 12.04×1023 respectively.
The number of positive ions and negative ions contained in 1.00 mol of PbS2 is 6.02×1023 and 12.04×1023 respectively.
(d)
Interpretation:
The number of positive ions and negative ions contained in 1.00 mol of given compound is to be calculated.
Concept introduction:
Ionic compounds are those compounds that have the strong electrostatic force of attraction between the oppositely charged ions. The binary ionic compounds are composed of only one cation and one anion.
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Answer to Problem 4.43E
The number of positive ions and negative ions contained in 1.00 mol of AlCl3 is 6.02×1023 and 18.06×1023 respectively.
Explanation of Solution
The given compound is AlCl3.
One mole of AlCl3 compound contains one mole of Al3+ cation and three moles of Cl− anion. The number of atoms present in one mole is equal to Avogadro’s number (6.02×1023). Therefore,
The number of Al3+ cations is =1×6.02×1023=6.02×1023
The number of Cl− anions is =3×6.02×1023=18.06×1023
The number of positive ions and negative ions contained in 1.00 mol of AlCl3 is 6.02×1023 and 18.06×1023 respectively.
The number of positive ions and negative ions contained in 1.00 mol of AlCl3 is 6.02×1023 and 18.06×1023 respectively.
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Chapter 4 Solutions
Chemistry for Today: General, Organic, and Biochemistry
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