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This is the answer to chapter 1, problem number 71 from the smith organic chemistry textbook.
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And this problem discusses ketene, which is ch2co.
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And we're asked first to predict, or not predict, really, first to determine the hybridization of each carbon and the oxygen in ketine.
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And then we're asked to draw some diagrams showing the bonds.
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And so the first carbon, it has three groups around it.
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It has two hydrogens and another carbon.
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So this is going to be sp2 hybridized with three groups.
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The second carbon has two groups around it, another carbon and an oxygen.
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So it's going to be sp hybridized.
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And then the oxygen, i should draw in the lone pairs here.
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So the oxygen has three groups around it.
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So two lone pairs and a carbon.
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So three groups, again, will make it sp2 hybridized.
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So that is the easy part of this problem.
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So the much more difficult part is drawing these diagrams.
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So the central carbon is sp hybridized.
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So it is going to have sp orbitals.
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They are going to look something like this.
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And then the carbon to the left is going to have sp2 orbitals.
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So i will draw the sp2 orbitals in red.
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They are going to look like this.
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And then the two hydrogens to which that carbon is bound are just going to be 1s orbitals.
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So there are going to be spheres here.
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So i'll go ahead and label this to try to make it less horrendous looking.
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So there's our 1s's.
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Here are sp2s.
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And the other red one as well.
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And then the central carbons are sp -type orbitals...