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Ch.9 - Chemical Bonding I: The Lewis Model
Tro - Chemistry: A Molecular Approach 4th Edition
Tro4th EditionChemistry: A Molecular ApproachISBN: 9780134112831당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 4th EditionCh.9 - Chemical Bonding I: The Lewis Model문제 98a,d
9장, 문제 98a,d

Draw the Lewis structure for each organic compound from its condensed structural formula. a. C3H8 d. CH3COOH

검증된 단계별 안내
1
Identify the number of valence electrons for each atom in the compound. Carbon has 4, hydrogen has 1, and oxygen has 6 valence electrons.
For C_3H_8 (propane), arrange the three carbon atoms in a chain. Each carbon atom forms four bonds. Connect the carbon atoms with single bonds and attach hydrogen atoms to satisfy the valence of each carbon.
For CH_3COOH (acetic acid), start by identifying the functional groups. The CH_3 group is a methyl group, and COOH is a carboxylic acid group.
In CH_3COOH, connect the CH_3 group to the carbon of the COOH group. The carbon in the COOH group is double-bonded to one oxygen and single-bonded to the OH group.
Ensure that all atoms have a complete octet (except hydrogen, which should have 2 electrons) and adjust any lone pairs on oxygen atoms as needed.

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주요 개념

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Lewis Structures

Lewis structures are diagrams that represent the bonding between atoms in a molecule and the lone pairs of electrons that may exist. They use dots to represent electrons and lines to represent bonds between atoms. Understanding how to draw Lewis structures is essential for visualizing molecular geometry and predicting the behavior of molecules in chemical reactions.
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가이드 코스
04:28
Lewis Dot Structures: Ions

Condensed Structural Formulas

Condensed structural formulas provide a shorthand way of representing the structure of a molecule, showing how atoms are connected without depicting all the bonds explicitly. For example, in CH3COOH, the formula indicates that there are three hydrogen atoms bonded to a carbon, which is also bonded to another carbon that has a hydroxyl group (-OH). This format is crucial for translating into Lewis structures.
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가이드 코스
01:53
Condensed Formula

Valence Electrons

Valence electrons are the outermost electrons of an atom and are involved in forming bonds with other atoms. The number of valence electrons determines how atoms will bond and the overall structure of the molecule. Knowing how to count and distribute valence electrons is vital for accurately drawing Lewis structures and understanding molecular stability.
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가이드 코스
02:12
Transition Metals Valence Electrons
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