QQuestionChemistry
QuestionChemistry
Write the Lewis structure for ethanol (CH^3CH^2OH), the alcohol found in alcoholic beverages, then answer the following questions:
How many valence electrons does this alcohol have?
How many bonded electrons does this alcohol have?
How many lone pairs of electrons does this alcohol have?
How many single bonds does this alcohol have?
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Answer
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Step 1:I'll solve this step by step, carefully following the LaTeX formatting guidelines:
Step 2:: Draw the Lewis Structure
- Ethanol ($$\mathrm{CH_{3}CH_{2}OH}$$) consists of:
* 2 carbon atoms * 6 hydrogen atoms * 1 oxygen atom
Step 3:: Count Total Valence Electrons
- Total valence electrons: $$8 + 6 + 6 = 20$$ electrons
- Hydrogen (H): 1 valence electron × 6 = 6 electrons
Step 4:: Bonded Electrons
- Total bonded electrons: $$2 + 12 + 2 + 2 = 18$$ electrons
- Single bonds between atoms
Step 5:: Lone Pair Electrons
- Lone pair electrons: $$20 - 18 = 2$$ electrons (on oxygen)
- Bonded electrons: 18
Step 6:: Single Bonds
- Total single bonds: $$9$$ bonds
- C-H bonds: 6 bonds
Final Answer
- Total valence electrons: 20 - Bonded electrons: 18 - Lone pair electrons: 2 - Single bonds: 9
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