CAS CH 101 : Chemistry_1_HW_8

Question 1 3.33 pts Draw the Lewis structure for AsH3, then answer the following questions How many valence electrons does this compound have? How many bonded electrons does this compound have? How many lone pairs of electrons does this compound have? How many single bonds does this compound have? How many double bonds does this compound have? What is the electron group arrangement [aka electron pair geometryj (enter one A. B. C. D. E. F. of the following: linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral)? G. What is the molecular geometry faka shape] (enter one of the following: linear, trigonal planar, tetrahedral, trigonal pyramidal, bent, trigonal bipyramidal, seesaw, T-shaped, octahedral, square pyramidal, square planar)? H. Predict the approximate bond angle (enter e.g. 90, 109.5, 120, 180, 109.5, 109.5)

(1) 2 lone of XeF (3) 1 lone pair, square 14. Give the (1) bent (2) trigonal planar 8. Use VsEPR theory to predict the geometry of the PCl molecule (3) rigonal pyramidal (4)etahedal to the VSEPR heory e. Aecording PR theory, which one of the following species is anear? )HS (2) CO (3) BFs (4) 50 17. Predict the geometry around the central atom in so (1) rigonal planar ( (2) trigonal pyramidal (3) tetrahedral (4) trigonal bipyramida 18. A molecule with 3 single bonds and 0 lone pair of electrons is predicted to have which tyoe of o eomeery? (1) rigonal planar(2) trigonal pyramidal (3) bent (4) tetr 19. The bond angle in SO, is expected to be approximately (1)90 (2) 109.5 (3) 120" (4)1 20. Which of the following moiecules has polar bonds but is a nonpolar molecule? (1) CO (2) SIC (3) (4) HCl 21. The geometry of the hybrid orbitals about a central atom with sp hybridization is: (1) linear (2) bent (3) trigonal planar(4) tetrahedral 22, which of the following molecules have the same geometries? (1) SiFa and CH. (2) СОг and Hao (3) CO2 and SO (4) N2O and NO (1) ơ only (2) ơ and ơ. (3) onty (4) and T" hybridization state of carbon indicated by the arrow in the structure of DEET shown below? 23. According to Molecular Orbital Theory, two separate 2p, orbitals interact to form what molecular orbital(s)? 24. N.N-diethyl-m-tolumide (DEET) is the active ingredient in many mosquito repellents. What is the (1) sp' (2) sp (3) sp'd (4) sp'd 25. The number of pi bonds in the molecule below is (1)2 (2)4 (3)6 (4) 10 НН Н-СЕС-С-С-СЕС-Н НН 26. Predict the geometry ad polarity of the SO2 molecule. (1) linear, polar (2) linear,nonpolar (3) bent, nonpolar (4) bent, polar :0