Question

C. (4 pts) Draw the most stable Lewis electron dot structure for H3PO3 containing no double bonds and no formal charges. Place your answer in the space provided. H3POs with no double bonds d. (3 pts) What is the 20-P-0 bond angle at phosphorus in your answer to part (c)?

Answer 1

I 6 to H₃PO3 + - In-H₂ PO₂ theo no of total valance eto electrons are - 3×(1) + 5+ 3x(6) FH has one valance election? - 26 on three u u P u five u u Now we have to draw the lewiro electron structure contain no double bond and no formal charge. H. 0: To: Hiiö ... Ö.H ì HÖ-P-ÖH Lewis electron dot Normal structure, instructure on In this above lenina electron dot structure all the atoms Bobay octate rule. All 'o' atom has a lone pouce pairs and lp' has 1 lone pare

boa Valance electron Now Formal charge 'D' 'pi = = 6 5 electron do not bonded electron/z - recent take part in bonding - 4 4 = 0 - 6/2 - 2 = 80 = - 22 So, the given lewis electron dot structure has no formal charge. OH Here the 'p' has sp3 hybridization so the structure sheantarte in i tragonal pyramidal-hour tone so the to Lo-p-o should be 109.5 degree but due to the presence of a lone pair one (p? atom the a repulsion take place between bonding periodasandose a lone lone pair electron pair electron. That's why the bond electron. That angle must be less than 109.5 degree 20-P-0 bond angle af phosphorus in less than 109.5 degre,