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Concept explainers
In each box, write the chemical formula of the compound formed by the cation at the head of the column and the anion at the left of the row, and then write the name of the compound. Refer only to a clean periodic table when completing this exercise.
Ions | Na+ | Hg2+ | NH4+ | Pb2+ | Mg2+ | Fe3+ | Cu2+ |
OH- | |||||||
BrO- | |||||||
CO32- | |||||||
ClO32- | |||||||
HSO4- | |||||||
Br- | |||||||
PO43- | |||||||
IO4- | |||||||
S2- |
![Check Mark](/static/check-mark.png)
Interpretation:
In each box, the chemical formula of the compound formed by the cation at the head of the column and the anion at the left of the row is to be written, and then the name of the compound is to be written.
Ions | Na+ | Hg2+ | NH4+ | Pb2+ | Mg2+ | Fe3+ | Cu2+ |
OH- | |||||||
BrO- | |||||||
CO32- | |||||||
ClO32- | |||||||
HSO4- | |||||||
Br- | |||||||
PO43- | |||||||
IO4- | |||||||
S2- |
Concept introduction:
Generally, the elements are found as single atom particles in the universe. Moreover, some elements form monoatomic ions having different charges. To differentiate the two ions, size of the charge of ions is included when naming the ion. Conversely, for group 1A, 2A, 5A-7A elements the charge is not included while naming the ion. In common, the charge is given in the name of an ion only when the ions of an element display more than one charge which is common
Answer to Problem 54E
Ions | Na+ |
Hg2+ | NH4+ |
OH- | NaOH Sodium hydroxide |
Hg(OH)2 Mercury(II) hydroxide |
NH4OH Ammonium hydroxide |
BrO- | NaBrO Sodium hypobromite |
Hg(BrO)2 Mercury(II) hypobromite |
NH4BrO Ammonium hypobromite |
CO32- | Na2CO3 Sodium carbonate |
HgCO3 Mercury(II) carbonate |
(NH4)2CO3 Ammonium carbonate |
ClO32- | NaClO3 Sodium chlorate |
Hg(ClO3)3 Mercury(II) chlorate |
NH4ClO3 Ammonium chlorate |
HSO4- | NaHSO4 Sodium hydrogen sulfate |
Hg(HSO4)2 Mercury(II) hydrogen sulfate |
NH4HSO4 Ammonium hydrogen sulfate |
Br- | NaBr Sodium bromide |
HgBr2 Mercury(II) bromide |
NH4Br Ammonium bromide |
PO43- | Na3PO4 Sodium phosphate |
Hg3(PO4)2 Mercury(II) phosphate |
(NH4)2PO4 Ammonium phosphate |
IO4- | NaIO4 Sodium periodate |
Hg(IO4)2 Mercury(II) periodate |
NH4IO4 Ammonium periodate |
S2- | Na2S Sodium sulfide |
HgS Mercury(II) sulfide |
(NH4)2S Ammonium sulfide |
Ions | Pb2+ | Mg2+ | Fe3+ | Cu2+ |
OH- | Pb(OH)2 Lead(II) hydroxide |
Mg(OH)2 Magnesium hydroxide | Fe(OH)3 Iron(III) hydroxide |
Cu(OH)2 Copper(II) hydroxide |
BrO- | Pb(BrO)2 Lead(II) hypobromite |
Mg(BrO)2 Magnesium hypobromite | Fe(BrO)3 Iron(III) hypobromite |
Cu(BrO)2 Copper(II) hypobromite |
CO32- | PbCO3 Lead(II) carbonate |
MgCO3 Magnesium carbonate |
Fe2(CO3)3 Iron(III) carbonate | CuCO3 Copper(II) carbonate |
ClO32- | Pb(ClO3)2 Lead(II) chlorate | Mg(CIO3)2 Magnesium chlorate | Fe(CIO3)3 Iron(III) chlorate | Cu(CIO3)2 Copper(II) chlorate |
HSO4- | Pb(HSO4)2 Lead(II) hydrogen Sulfate |
Mg(HSO4)2 Magnesium hydrogen sulfate | Fe(HSO4)3 Iron(III) hydrogen Sulfate |
Cu(HSO4)2 Copper(II) hydrogen sulfate |
Br- | PbBr2 Lead(II) bromide |
MgBr2 Magnesium bromide |
FeBr3 Iron(III) bromide |
CuBr2 Copper(II) bromide |
PO43- | Pb3(PO4)2 Lead(II) phosphate |
Mg3(PO4)2 Magnesium phosphate | FePO4 Iron(III) phosphate |
Cu3(PO4)2 Copper(II) phosphate |
IO4- | Pb(IO4)2 Lead(II) periodate |
Mg(IO4)2 Magnesium periodate | Fe(IO4)3 Iron(III) periodate |
Cu(IO4)2 Copper(II) periodate |
S2- | PbS Lead(II) sulfide |
MgS Magnesium sulfide |
Fe2S3 Iron(III) sulfide |
CuS Copper(II) sulfide |
Explanation of Solution
When an ionic compound having a metal that can exist in more than one ionic charge, is named the charge of metal atom should be included in the compound name. For example, Fe2(CO3)3 is named as iron(III) carbonate. The roman letters present in the parentheses indicate the oxidation state of the metal atom. By following the same set of rules the ionic compounds of various metal atoms can be named.
Thus, the names and molecular formula of ionic compounds are stated.
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Chapter 6 Solutions
Introductory Chemistry: An Active Learning Approach
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