Question

Part II: Structural Information from Computer-Generated Models 4 Bond Angles and Dipoles: CH4, NH3, and H2O. 1. Write the steric number of the central atom above each molecule: CH4, NH3, H2O. a. Rank the bond angles from largest to smallest:H AHSo Do the Spartan bond angle results correlate to VSEPR? e to include reasons for the differences observed in the bond angles. b. c. Explain, being sure Rank the dipoles from smallest to largest:Hy LNH,LO d. e. Do Spartan's relative dipole moments for the molecules seem reasonable? Explain. lom (OT

c and e

Answer 1

Data Page Steaic numbes CH4Methare hycleogen atom is 4 Consist 61 canbon bordled to Steric numbea its и bonds with hy dragen In water Lhore are E two Jone pairs al So has steatc two its number SO is four to three hydragen f1 has one Sreric लाल वु ctHtackod paix lome is 4 copounds steaic no. 04 So no Th al above Bond 6rder: CH47 NHa s 1040 lo7 l0g.so 0ne sile in wगावे Tn wates two pe ००e is pair Lone pair repuision is maximum than One present Lone pair lane pair L.P.L.p band pair repulsion LP-B.P BP-B.P. maximum repursin le pair has Water has smallesk bond angle S0 Yes +he bond angle wit omelates Cam VSEPR theomy. CH4 mole cule is tetog hedral Lone pair A elecben 4re amangd maximum shabllity Thene lore the bmd angle in carb there is no On in grder the bonds S0 geL CH i H--4 oon angle l0g.so

Date Page of ammonia nitsogen contains on the In Case love pair Accoreing to VSEPR lone pair bord pair repuisim in bnd angle in Omgle reduces y bor water to repulsim 4two theary the decreaJe Causes N4 male cule sonN-hband l070 bond angle educes agajh lone pairs to repuision repuisim H Hlo4 Dipole Order CH4くNぐH20 I the compound has One o the high elechonre gative atom dipole momenk water orygen is Elecponegativíbyincmeaing order is electoo positive then high is an elechonegarive adem. CくNくO Yes Accord ing to electonegativily 07der caabm hinagem 4 agem dipalemoment in sater Ls maximum as polar campound. acts 4so Water niragen is auso have 1pole momemt also polam Hhis 30 bus less Campaunsl than water CH4 molecus have high aiErerene inelecbonagativiy Conbon 4 hytrogen doer not In so haS zero dipale moment CH4 1.46 D 185 momen