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- Q2: Draw all applicable resonance forms for the acetate ion CH3COO. Clearly show all lone pairs, charges, and arrow formalism.In the following Lewis structure of [(CH3)2OH]*, every atom, bond and lone pair is positioned. To complete the structure, drag the formal charge tags to the appropriate atom(s). Each marker may be used more than once, or not at all. If an atom has a formal charge of zero, do not drag a tag to it. When you drag the marker in, place the little crosshairs in the upper left corner of the marker directly over the atom(s) in question (not above them). H. H-C Н-С-О-С-Н C-H H HH 2- II 2-In the following Lewis structure of [(CH3)2OH]+, every atom, bond and lone pair is positioned. To complete the structure, drag the formal charge tags to the appropriate atom(s). Each marker may be used more than once, or not at all. If an atom has a formal charge of zero, do not drag a tag to it. When you drag the marker in, place the little crosshairs in the upper left corner of the marker directly over the atom(s) in question (not above them). H H-C-O-C-H HHH - H I Η Η Η 0 0 + 2+ 2-
- Tor each of the following, put the proper formal charges near each atom with a formal charge that is not zero. Unless otherwise noted, assume that atoms, other than hydrogen, have an octet (lone pairs are not showm). H. H H CH3 H. H C-O H C-N-H H -C- H3C-C CH3 H. H H 0.8nenw boe Central carbon is as written (no octet) CH WhM are the formSpecify the number of unshared pairs of electrons necessary to complete the valence shell of the labeled atoms, a-c in the following structures. Specify "0" if no pair of electron and that the atoms are NOT labeled in sequence. needs to be added. Notice that formal charges are indicated by or 1. 2. ob d a de C H H H a a b C b ✓CWrite an equation for the reaction of CH3 SCH3 with BF3, a Lewis acid, and show by the use of curved arrows how the reaction occurs. • Show all hydrogen atoms that are not attached to a carbon atom. Apply formal charges where appropriate. Assign lone pairs and radical electrons where appropriate. • Use the "starting points" menu to revert to the original molecule(s) shown. • Draw the appropriate electron-flow arrows. • Omit+ signs between structures. ● ● CH3 | :S: | CH3 == starting points == ↑ TAYY : F کر ? ChemDoodleⓇ
- What is the formal charge (if any) of the carboxyl carbon (i.e., the one that is part of the carboxylic acid functional group) in the molecule (or ion) shown below? Assume all lone pairs of electrons are shown. H₂N- +2 -2 +1 -1 3 +3 O O :N: :N N: HO: : NO : NH₂ Ö: OHIn the following Lewis structure of [BrO3]", every atom, bond and lone pair is positioned. To complete the structure, drag the formal charge tags to the appropriate atom(s). Each marker may be used more than once, or not at all. If an atom has a formal charge of zero, do not drag a tag to it. When you drag the marker in, place the little crosshairs in the upper left corner of the marker directly over the atom(s) in question (not above them). Ö: Br: 2+ 2-1. A) Draw all resonance structures for this compound (where all atoms have a filled valence shell). Show accurate electron pushing arrows. B) Assign all non-zero formal charges and show on each drawing. N= -CH2 2. A. Draw all resonance structures for the following compound (for most structures, all atoms except one in each case should have a full valence shell. In one structure, all atoms should have a full valence shell). Show any non-zero formal charges and all electron pushing arrows. B. Circle the most important resonance structure for this compound. No explanation is required.
- 1. For each of the following compounds and ions, draw the complete Lewis structure. All formal charges should be on the atoms that possess that formal charge. CH4 H3CBr CH3CH₂OH H₂S H₂SO4 (sulfuric acid) H³0+ CH3* 2. Convert the following condensed formulas into bond-line structures, making sure to draw in zig-zag formation. CH3CH₂CH₂CH₂CH₂CH₂CH₂CH3 FCH₂CH₂I H₂C=CHCH₂OH (CH3)2CHCOOH5. Assign the appropriate formal charge to the indicated atoms. Here, lone pairs are shown for learning and clarity. In other words, consider the structure as drawn. In the future, only the charge will be drawn. Н NH2 Н .N'Draw a complete lewis structure for the CONJUGATE ACID of Nitromethane (condensed formula CH3NOOH). Draw a complete lewis structure that shows all bonds, unshared electron pairs, and minimized formal charges where appropriate.
