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Ch.23 - Organic and Biological Chemistry
McMurry - Chemistry 8th Edition
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Tutti i libri di testoMcMurry 8th EditionCh.23 - Organic and Biological ChemistryProblema 145
Capitolo 23, Problema 145

Fructose, C6H12O6, is the sweetest naturally occurring sugar and is found in many fruits and berries. Each carbon has four covalent bonds, each oxygen has two covalent bonds, each hydrogen has one covalent bond, and the atoms are connected in the sequence shown. Draw the complete struc-tural formula of fructose. Skeletal formula of fructose, C6H12O6, showing carbon, hydrogen, oxygen bonds.

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Identify the molecular formula of fructose, which is C6H12O6.
Understand that each carbon atom forms four covalent bonds, each oxygen atom forms two covalent bonds, and each hydrogen atom forms one covalent bond.
Start by drawing the carbon backbone of the fructose molecule, which consists of six carbon atoms.
Add the hydroxyl (OH) groups and hydrogen atoms to the carbon backbone, ensuring that each carbon has four bonds, each oxygen has two bonds, and each hydrogen has one bond.
Double-check the structure to ensure that all atoms have the correct number of bonds and that the molecular formula matches C6H12O6.

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Covalent Bonding

Covalent bonding occurs when two atoms share electrons to achieve a full outer shell, leading to stability. In fructose, each carbon atom forms four covalent bonds, while oxygen forms two and hydrogen forms one. Understanding these bonding patterns is crucial for drawing the structural formula accurately.
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Chemical Bonds

Structural Formula

The structural formula of a compound illustrates the arrangement of atoms and the bonds between them. For fructose, this includes the specific connectivity of carbon, hydrogen, and oxygen atoms. Drawing the complete structural formula requires knowledge of how to represent single, double, and triple bonds between atoms.
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Structural Formula

Molecular Geometry

Molecular geometry refers to the three-dimensional arrangement of atoms in a molecule. In fructose, the geometry is influenced by the tetrahedral shape around carbon atoms and the bent shape around oxygen atoms. Understanding molecular geometry helps in visualizing the spatial orientation of the atoms, which is essential for accurately depicting the structural formula.
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Molecular Geometry with Two Electron Groups
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Domanda del libro di testo

Isooctane, the substance in gasoline from which the term octane rating derives, has the formula C8H18. Each carbon has four covalent bonds, and the atoms are connected in the sequence shown. Draw the complete structural formula of isooctane.

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Domanda del libro di testo
Cyclohexane, C6H12, is an important starting material used in the industrial synthesis of nylon. Each carbon has four covalent bonds, two to hydrogen and two to other carbons. Draw the structural formula of cyclohexane.
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