Hemiacetals and Acetals (Part 1)

✔ https://StudyForce.com/ ✔ https://Biology-Forums.com/ ✔ Ask questions here: https://Biology-Forums.com/index.php?board=33.0 Follow us: ▶ Facebook: https://facebook.com/StudyForcePS/ ▶ Instagram: https://instagram.com/studyforceonline/ ▶ Twitter: https://twitter.com/studyforceps Q1. Identify each of the following as a hemiacetal or acetal: a. A hemiacetal has a carbon bonded to one alkoxy group and one hydroxyl group. b. An acetal has a carbon bonded to two alkoxy groups. c. A hemiacetal has a carbon bonded to one alkoxy group and one hydroxyl group. Q2. From the following descriptions, identify the compound as a hemiacetal or an acetal: a) a molecule that contains a carbon atom attached to a hydroxyl group and an ethoxy group b) a molecule that contains a carbon atom attached to two ethoxy groups Q3. Draw the condensed structural formulas for the hemiacetal and acetal formed when methanol adds to propanal. To form the hemiacetal, the hydrogen from methanol adds to the oxygen of the carbonyl group to form a new hydroxyl group. The remaining part of the methanol adds to the carbon atom in the carbonyl group. The acetal forms when a second molecule of methanol adds to the carbonyl carbon atom. Q4. Draw the condensed structural formula for the acetal formed when methanol adds to butanone.

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