Draw the Line Bond Structure for Acetone (C3H₂O) Step 2: Step 1A: (ADD HYDROGENS UNTIL EACH CARBON HAS 4 BONDS = OCTET) Use the skeleton structure from step 1A to find: O || C C C Step 1B: Count the total number of valence electrons from all the atoms in the molecule. Chemical formula of molecule Atom # of atoms X X X # of valence electrons = = Total # of electrons in structure = totals Step 3: Subtract the number of electrons used to make the skeleton structure from the total number of valence electrons. Total # of electrons in structure (from step 1 above) # of electrons used in skeleton (from step 2 above) Remaining # electrons to be added= Step 5: Check for Octets Check the structure in step 4 for octets (4 pairs) of electrons around each atom. If octet rule is satisfied, you are done. If octet rule is not satisfied, go to Step 6. # of electrons used in skeleton = (multiply # of bonds in skeleton by 2) Step 4: Add the remaining electrons (if any remain) to the skeletal structure above as lone pairs as evenly as possible on all atoms except hydrogen. Step 6: Use existing lone pairs to make double or triple bonds until the octet rule is satisfied for all atoms

Draw the Line Bond Structure for Acetone (C3H₂O) Step 2: Step 1A: (ADD HYDROGENS UNTIL EACH CARBON HAS 4 BONDS = OCTET) Use the skeleton structure from step 1A to find: O || C C C Step 1B: Count the total number of valence electrons from all the atoms in the molecule. Chemical formula of molecule Atom # of atoms X X X # of valence electrons = = Total # of electrons in structure = totals Step 3: Subtract the number of electrons used to make the skeleton structure from the total number of valence electrons. Total # of electrons in structure (from step 1 above) # of electrons used in skeleton (from step 2 above) Remaining # electrons to be added= Step 5: Check for Octets Check the structure in step 4 for octets (4 pairs) of electrons around each atom. If octet rule is satisfied, you are done. If octet rule is not satisfied, go to Step 6. # of electrons used in skeleton = (multiply # of bonds in skeleton by 2) Step 4: Add the remaining electrons (if any remain) to the skeletal structure above as lone pairs as evenly as possible on all atoms except hydrogen. Step 6: Use existing lone pairs to make double or triple bonds until the octet rule is satisfied for all atoms

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter7: Chemical Bonding And Molecular Structure

Section: Chapter Questions

Problem 7.92PAE

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