Domanda del libro di testo
How many hydrogen atoms are in each of the following: (a) C2H5OH? (b) Ca(C2H5COO)2? (c) (NH4)3PO4?
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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 50a
Determine the molecular and empirical formulas of the following: (a) the organic solvent benzene, which has six carbon atoms and six hydrogen atoms
Guida verificata passo dopo passo1
Determine the molecular formula: The molecular formula represents the actual number of atoms of each element in a molecule. For benzene, you are given that it contains six carbon atoms and six hydrogen atoms. Therefore, the molecular formula is C_6H_6.
Determine the empirical formula: The empirical formula represents the simplest whole-number ratio of atoms of each element in a compound. For benzene, both carbon and hydrogen are in a 1:1 ratio (since 6:6 simplifies to 1:1). Therefore, the empirical formula is CH.
Verify the empirical formula: To ensure the empirical formula is correct, check that the ratio of atoms in the empirical formula matches the simplest ratio of the molecular formula. In this case, C_6H_6 simplifies to CH, confirming the empirical formula is correct.
Understand the difference: Remember that the molecular formula provides the exact number of atoms, while the empirical formula gives the simplest ratio. For benzene, the molecular formula is C_6H_6, and the empirical formula is CH.
Conclude: Benzene's molecular formula is C_6H_6, and its empirical formula is CH, reflecting the simplest ratio of carbon to hydrogen in the compound.
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Molecular Formula
The molecular formula of a compound indicates the actual number of each type of atom present in a molecule. For benzene, which consists of six carbon atoms and six hydrogen atoms, the molecular formula is C6H6. This formula provides insight into the composition of the molecule and is essential for understanding its chemical properties.
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02:08
Determining Molecular Formulas
Empirical Formula
The empirical formula represents the simplest whole-number ratio of the elements in a compound. For benzene, the molecular formula C6H6 can be simplified to CH, indicating that the ratio of carbon to hydrogen is 1:1. The empirical formula is useful for understanding the basic composition of a compound without detailing the actual number of atoms.
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02:26Empirical vs Molecular Formula
Organic Compounds
Organic compounds are primarily composed of carbon and are characterized by the presence of carbon-hydrogen bonds. Benzene is a classic example of an organic compound, known for its ring structure and stability due to resonance. Understanding the nature of organic compounds is crucial for studying their chemical behavior and reactions.
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02:26Introduction to Organic Chemistry
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