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Ch.13 - Properties of Solutions
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 14th EditionCh.13 - Properties of Solutions문제 34a
13장, 문제 34a

Which of the following in each pair is likely to be more soluble in water: (a) cyclohexane (C6H12) or glucose (C6H12O6),

검증된 단계별 안내
1
Identify the key structural differences between cyclohexane (C_6H_12) and glucose (C_6H_12O_6).
Recognize that cyclohexane is a nonpolar hydrocarbon, while glucose contains multiple hydroxyl (OH) groups, making it polar.
Recall the principle 'like dissolves like,' which suggests that polar substances are more soluble in polar solvents like water.
Consider the ability of glucose to form hydrogen bonds with water due to its hydroxyl groups, enhancing its solubility.
Conclude that glucose is likely to be more soluble in water than cyclohexane due to its polar nature and ability to hydrogen bond.

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주요 개념

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Polarity and Solubility

Polarity refers to the distribution of electrical charge over the atoms in a molecule. Polar molecules, which have a significant difference in electronegativity between their atoms, tend to dissolve well in polar solvents like water. In contrast, nonpolar molecules do not interact favorably with polar solvents, leading to lower solubility.
추천 영상:
가이드 코스
02:38
Molecular Polarity

Hydrogen Bonding

Hydrogen bonding is a type of strong intermolecular attraction that occurs when hydrogen is bonded to highly electronegative atoms like oxygen or nitrogen. In the case of glucose, the presence of hydroxyl (-OH) groups allows it to form hydrogen bonds with water, significantly enhancing its solubility compared to nonpolar compounds like cyclohexane.
추천 영상:
가이드 코스
01:22
Hydrogenation Reactions

Molecular Structure and Functional Groups

The molecular structure and functional groups of a compound play a crucial role in determining its chemical properties, including solubility. Glucose contains multiple hydroxyl groups that increase its interaction with water, while cyclohexane, being a hydrocarbon with a ring structure, lacks polar functional groups, making it less soluble in water.
추천 영상:
가이드 코스
00:41
Functional Groups Example
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Which of the following in each pair is likely to be more soluble in water: (c) HCl or ethyl chloride (CH3CH2Cl)? Explain in each case.

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