Lab # 8 Drawing Lewis Structures and Applying Vsepr Rules Essay

420 WordsDec 9, 20142 Pages
Lab report form for Drawing Lewis Structures and Applying VSEPR Rules Name_ ______________________ Date ___________11/10/14_____________________ Molecules and Polyatomic ions with one central atom (2 pts each) Total Valence Electrons | MolecularFormula | Lewis Structure | Electronic Geometry (EG) | Molecular Geometry (MG) | 1 N = 5e3 H = 3eTotal 8 e8 e/2 = 4 e pairs | Ammonia, NH3 | | tetrahedral | Trigonal pyramidal | Total only =1 O = 6e2 H = 2eTotal 8e8e/2 = 4e pairs | 1. Water: H2O | | tetrahedral | bent | Total only =1 C = 4e4 Br = 28eTotal 32e32e/2 = 16e pairs | 2. Carbon tetrabromide: CBr4 | | tetrahedral | tetrahedral | Total only =1 S = 6e3 O = 18eTotal 24e24e/2 = 12e pairs | 3. Sulfur trioxideSO3 This is not a polyatomic ion, No charge!!! | Note: resonance is possible. | Trigonal Planar | Trigonal Planar | Total Valence Electrons | MolecularFormula | Lewis Structure | Electronic Geometry (EG) | Molecular Geometry (MG) | Total only =1 P = 5e3 I = 21eTotal 26e26e/2 = 13e pairs | 4. Phosphorus triiodide, PI3 | | tetrahedral | pyramidal | Total only =1 C = 4e3H = 3e1 Cl = 7eTotal 14e14e/2 = 7e pairs | 5. chloromethaneCH3ClCarbon is the central atom. | | tetrahedral | tetrahedral | Total only =1 N = 5e4 H = 4e-e = -1eTotal 10e8e/2 = 4e pairs | 6. Ammonium ionNH4+1 | | tetrahedral | tetrahedral | Total only =1 S = 6e2 O = 12eTotal 18e18e/2 = 9e pairs | 7. sulfur dioxideSO2 | | Trigonal planar | bent | Lewis Structures of Molecules with more than one central atom (2 pt each) 1. Count the total number of valence electrons, divide by 2. 2. Draw the Lewis Structures: share the electron pairs around each atom to complete the bonding. Recall that double and triple bonds may be necessary. 3. Determine the structure on each of the central atoms as indicated. (Note: Make sure to

More about Lab # 8 Drawing Lewis Structures and Applying Vsepr Rules Essay

Open Document