- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 1 (166.19 KiB) Viewed 32 times
- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 2 (123.24 KiB) Viewed 32 times
- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 3 (117.41 KiB) Viewed 32 times
- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 4 (115.7 KiB) Viewed 32 times
- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 5 (110.94 KiB) Viewed 32 times
- Procedure 1 Draw The Lewis Structure 2 Build The Model Of The Molecule Use Springs For The Double Triple Bonds Your 6 (60.01 KiB) Viewed 32 times
Procedure: 1) Draw the Lewis Structure 2) Build the model of the molecule. Use springs for the double/triple bonds. Your Lewis structure must be consistent with your model. If you can't make the molecule using the model kit, then it probably is not one! When there are more than two central atoms, the questions above refer to the underlined atom or to the first carbon atom in the structure as you drew it. 3) Sketch the molecule that you created (as best you can). Try to indicate the three-dimensionality and shape of it. Shapes of Molecules Green=F; Yellow-H; Red-O; Black-C; Purple-Br; Blue=N/S 4) Determine the electron domain geometry 5) Determine the molecular geometry around the indicated atom. 6) Examine the sketch/model to determine whether the molecule is polar or non-polar. Draw in bond dipoles in the sketch to see if they cancel each other out. Explain your answer in Analysis Question #1. 7) Try rearranging the atoms in your molecule. Is it possible to form isomers of the original compound? If so, draw Lewis Structures for each isomer in Analysis Question #2. 8) If your compound has a double bond, can you change the location of that bond? Or in other words does the molecule show resonance? Is so, draw the the resonance structures in Analysis Question #3. Data Sheet: Lewis Structure Lewis Structure Sketch w/ bond dipoles Sketch w/ bond dipoles CH4 Electron pair geometry Molecular geometry Polar or non-polar? *Please explain in Analysis Question #1 now. Isomers? ** If "yes" go to Analysis question #2 now. CH3F Electron pair geometry ** Resonance? *** If "yes" go to Analysis question #3 now. Molecular geometry Polar or non-polar? Isomers? Resonance? *** * ** *** 2
Lewis Structure Lewis Structure Lewis Structure Lewis Structure Lewis Structure Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles CH3OH Electron pair geometry. Molecular geometry. Polar or non-polar? Isomers? Resonance? H₂O Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? ** NH3 Electron pair geometry. Molecular geometry Polar or non-polar ? Isomers? Resonance? ** HF Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? Molecular geometry Polar or non-polar? Isomers? Resonance? *** *** ** H₂O2 Electron pair geometry. *** ** *** ** *** * 3
Lewis Structure Lewis Structure 0=C=0 Lewis Structure Lewis Structure Lewis Structure Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles CO3-2 Electron pair geometry. Molecular geometry Polar or non-polar? Isomers? Resonance? N/A (ionic)____ CO₂ Electron pair geometry. Molecular geometry Polar or non-polar? Isomers? Resonance? C₂H4 Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? *** ** *** ** C₂H₂ Electron pair geometry. Molecular geometry Polar or non-polar? Isomers? Resonance? C₂H₂F2 Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? *** ** *** ** *** 4
Lewis Structure Lewis Structure Lewis Structure Use a black sphere for S in this case. Lewis Structure Sketch w/ bond dipoles Lewis Structure Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles Sketch w/ bond dipoles SO₂ Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? ** Molecular geometry Polar or non-polar? Isomers? Resonance? *** SO3 Electron pair geometry HNO3 Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? ** *** ** *** H₂CO3 Electron domain geometry Molecular geometry Polar or non-polar? Isomers? Resonance? CH3COO Electron pair geometry Molecular geometry Polar or non-polar? Isomers? Resonance? N/A (ionic_ ** *** N/A (ionic) ** ***
Lewis Structure CH4 CH;F Analysis Questions: 1) For each Lewis structure you drew above, explain your choice of polar / nonpolar: Brief explanation of why you chose polar or nonpolar Molecule CH3OH H₂O NH3 HF H₂O2 CO₂ C₂H4 C₂H₂ C₂H₂F2 SO₂ SO3 HNO3 H₂CO3 Sketch w/ bond dipoles C₂H6O C₂H6O Electron pair geometry. Molecular geometry Polar or non-polar? Isomers? Resonance? ** *** 6
2) For the molecules you answered "yes" to isomers, draw the Lewis Structure for each isomer and determine whether or not the isomer(s) is polar or nonpolar. 3) For the molecules/ions you answered "yes" to resonance, draw all resonance structures for each molecule. Is there a "best" resonance structure for this ion or molecule?? Explain.