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CH₃CH(OH)CH₃

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Intro to Chemistry

Definition

CH₃CH(OH)CH₃ is the chemical formula for a secondary alcohol, also known as isopropyl alcohol or 2-propanol. It is a simple organic compound consisting of a central carbon atom bonded to three hydrogen atoms and one hydroxyl group (-OH).

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5 Must Know Facts For Your Next Test

  1. CH₃CH(OH)CH₃ is a secondary alcohol, meaning the hydroxyl group is bonded to a carbon atom that is connected to two other carbon atoms.
  2. Isopropyl alcohol is a widely used solvent, disinfectant, and antifreeze due to its unique chemical properties.
  3. The presence of the hydroxyl group in CH₃CH(OH)CH₃ makes it more polar and soluble in water compared to alkanes of similar size.
  4. Alcohols, including CH₃CH(OH)CH₃, can undergo various reactions such as oxidation, esterification, and dehydration.
  5. The structure of CH₃CH(OH)CH₃ is an example of a secondary alcohol, which is less reactive than primary alcohols but more reactive than tertiary alcohols.

Review Questions

  • Explain the significance of the hydroxyl group (-OH) in the structure of CH₃CH(OH)CH₃.
    • The hydroxyl group (-OH) in the structure of CH₃CH(OH)CH₃ is a polar functional group that contributes to the compound's unique chemical properties. The presence of the hydroxyl group makes CH₃CH(OH)CH₃ more polar and soluble in water compared to non-polar alkanes of similar size. This polarity also allows alcohols to participate in hydrogen bonding, which affects their physical properties, such as boiling point and solubility. Additionally, the hydroxyl group is a reactive site that allows alcohols to undergo various chemical reactions, such as oxidation, esterification, and dehydration.
  • Describe the structural differences between primary, secondary, and tertiary alcohols, and explain how these differences affect the reactivity of CH₃CH(OH)CH₃.
    • The structural differences between primary, secondary, and tertiary alcohols lie in the position of the hydroxyl group (-OH) relative to the carbon skeleton. In a primary alcohol, the hydroxyl group is attached to a carbon atom that is bonded to only one other carbon atom. In a secondary alcohol, such as CH₃CH(OH)CH₃, the hydroxyl group is attached to a carbon atom that is bonded to two other carbon atoms. In a tertiary alcohol, the hydroxyl group is attached to a carbon atom that is bonded to three other carbon atoms. These structural differences affect the reactivity of the alcohols, with primary alcohols being the most reactive, followed by secondary alcohols, and tertiary alcohols being the least reactive. The increased steric hindrance and stability of the carbocation intermediate in secondary alcohols, such as CH₃CH(OH)CH₃, makes them less reactive compared to primary alcohols.
  • Analyze the potential applications and uses of CH₃CH(OH)CH₃ (isopropyl alcohol) based on its chemical properties and structure.
    • The chemical properties and structure of CH₃CH(OH)CH₃, or isopropyl alcohol, make it a versatile compound with various applications. As a secondary alcohol, it is less reactive than primary alcohols, but more reactive than tertiary alcohols. This moderate reactivity, combined with its polarity and ability to form hydrogen bonds, allows isopropyl alcohol to be used as a solvent, disinfectant, and antifreeze. The solvent properties of isopropyl alcohol make it useful in cleaning applications, while its disinfectant properties stem from its ability to denature proteins and disrupt cell membranes, making it effective against microorganisms. Additionally, the low freezing point of isopropyl alcohol makes it suitable for use as an antifreeze in various applications. The unique chemical structure and properties of CH₃CH(OH)CH₃ contribute to its wide range of practical uses in industry, medicine, and consumer products.

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