Domanda del libro di testo
Consider a sample of calcium carbonate in the form of a cube
measuring 2.005 in. on each edge. If the sample has a density
of 2.71 g>cm3, how many oxygen atoms does it contain?
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Ch.2 - Atoms, Molecules, and Ions
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Capitolo 2, Problema 109a,b,c
Elements in the same group of the periodic table often form oxyanions with the same general formula. The anions are also named in a similar fashion. Based on these observations, suggest a chemical formula or name, as appropriate, for each of the following ions: (a) BrO4- (b) SeO32- (c) arsenate ion
Guida verificata passo dopo passo1
Identify the group in the periodic table where selenium (Se) is located. Selenium is in Group 16, also known as the chalcogens.
Recognize that elements in the same group often form similar oxyanions. For example, sulfur (S), which is also in Group 16, forms the oxyanion sulfate, \( \text{SO}_4^{2-} \).
Note that the given ion is \( \text{SeO}_3^{2-} \), which suggests a similar naming pattern to other oxyanions in the same group.
Consider the naming convention for oxyanions: the suffix '-ate' is typically used for the most common or typical oxyanion of an element. Therefore, \( \text{SeO}_3^{2-} \) would be named selenate, following the pattern of sulfate.
Conclude that the chemical name for \( \text{SeO}_3^{2-} \) is selenate, analogous to sulfate for sulfur.
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Oxyanions
Oxyanions are negatively charged ions that contain oxygen and another element. They often form when an element from the periodic table combines with oxygen, resulting in a polyatomic ion. The naming convention for oxyanions typically involves the number of oxygen atoms present, with suffixes like '-ate' for more oxygen and '-ite' for fewer. Understanding the structure and naming of oxyanions is crucial for predicting the formulas of related ions.
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01:54
Polyatomic Oxyanions
Periodic Table Groups
Elements in the same group of the periodic table share similar chemical properties due to their similar valence electron configurations. This similarity extends to the types of ions they form, including oxyanions. For example, elements in Group 16, such as sulfur and selenium, often form oxyanions with similar structures and formulas, which helps in predicting the behavior of these elements in chemical reactions.
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05:33Periodic Table: Group Names
Chemical Formula Representation
A chemical formula represents the composition of a compound or ion, indicating the types and numbers of atoms present. For oxyanions, the formula includes the central atom and the number of oxygen atoms, along with the overall charge of the ion. In the case of SeO3^2-, the formula indicates that selenium is bonded to three oxygen atoms and carries a -2 charge, which is essential for understanding its reactivity and interactions with other substances.
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02:08Molecular Formula
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Domanda del libro di testo
Elements in the same group of the periodic table often form oxyanions with the same general formula. The anions are also named in a similar fashion. Based on these observations, suggest a chemical formula or name, as appropriate, for each of the following ions: (d) hydrogen tellurate ion.
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Domanda del libro di testo
Carbonic acid occurs in carbonated beverages. When allowed to react with lithium hydroxide, it produces lithium carbonate. Lithium carbonate is used to treat depression and bipolar disorder. Write chemical formula for carbonic acid, lithium hydroxide, and lithium carbonate.
Domanda del libro di testo
Cyclopropane is an interesting hydrocarbon. Instead of having three carbons in a row, the three carbons form a ring, as shown in this perspective drawing (see Figure 2.18 for a prior example of this kind of drawing):
Cyclopropane was at one time used as an anesthetic, but its use was discontinued, in part because it is highly flammable. (b) The three carbon atoms are necessarily in a plane. What do the different wedges mean?
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Domanda del libro di testo
Cyclopropane is an interesting hydrocarbon. Instead of having three carbons in a row, the three carbons form a ring, as shown in this perspective drawing (see Figure 2.18 for a prior example of this kind of drawing):
Cyclopropane was at one time used as an anesthetic, but its use was discontinued, in part because it is highly flammable. (a) How does it differ from that of propane?
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