교과서 질문
For each of the following compounds and ions,
1. Draw a Lewis structure.
2. Show the kinds of orbitals that overlap to form each bond.
3. Give approximate bond angles around each atom except hydrogen.
g.
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1. A Review of General Chemistry
Lewis Structure
객관식
Which of the following best describes the correct Lewis structure for (acetic acid, also written as )?
A
The central carbon is bonded to three hydrogens and one oxygen atom, with all single bonds.
B
The molecule is a straight chain of four carbons, each bonded to one oxygen atom.
C
Both carbons are bonded to two hydrogens each, and each carbon is double-bonded to an oxygen atom.
D
The molecule has two carbons; one carbon is bonded to three hydrogens, and the other carbon is double-bonded to one oxygen and single-bonded to another oxygen (which is also bonded to a hydrogen).
검증된 단계별 안내1
Identify the molecular formula and the common name: Acetic acid has the formula \(\mathrm{C_2H_4O_2}\) and is often written as \(\mathrm{CH_3COOH}\), indicating two carbons, four hydrogens, and two oxygens.
Recognize the functional groups: Acetic acid contains a carboxyl group (\(\mathrm{-COOH}\)), which consists of a carbon double-bonded to one oxygen and single-bonded to a hydroxyl group (\(\mathrm{-OH}\)).
Determine the bonding of the first carbon: The first carbon (methyl group) is bonded to three hydrogens and one carbon atom, all with single bonds.
Determine the bonding of the second carbon: The second carbon (carboxyl carbon) is bonded to the first carbon, double-bonded to one oxygen atom, and single-bonded to another oxygen atom, which in turn is bonded to a hydrogen atom.
Combine all parts to draw the Lewis structure: Connect the atoms accordingly, ensuring the correct number of bonds and lone pairs on oxygen atoms, reflecting the structure \(\mathrm{CH_3-COOH}\) with proper single and double bonds.
