Question

DATE SECTION Pre-Laboratory Assignment 1. Sodium azide, NaN,, is commonly used in automobile airbags, since it decomposes explo- sively to form nitrogen gas. Complete the skeleton structure shown below for the atide ion, N, and any other resonance structures that may be applicable. b. Use formal charge to determine which resonance structure is most important. c. Use VSEPR theory to predict the molecular shape (linear or bent). Ν Ν Ν. Write the Lewis structure, give the molecular shape, and indicate bond angles around the carbon atom of phosgene, COCI,, whose skeleton structure is shown below. Сс СІ

Answer 1

1 2 3 N=因为 W-NEN = 5- + $- NANEN { Fismal charge = Valence C-lone - Sharede) NG) - 5-4=(4) - 5-4-2=1 N(2) - 5-0-463) = + N(3) - 5-4-2--| In the same way we can calculate formal charge for other structures. Resonance structure with less formal charge & more inportant i fist structure is more important,

Ng is a linear stuture because it is symmetic 5 10: C ce u8l. a-c-ce It is thigonal planas skutuse