Answer to Question #92071 in Organic Chemistry for Priskilla

Question

Indicate the relevant molecular geometry, bond angle and hybridizations of the following I) NH3. II) C2H2. III) acetic acid (CH3CO2H)

Answer 1

1) NH3

Number of bonding pairs =3

Number of lone pairs =1

Type is A3E

electronic geometry - tetrahedral

molecular geometry - trigonal pyramid

Bond angle <109 (actually 107)

hybridization sp3

2) C2H2

For each atom of C:

Number of bonding pairs =0

Number of lone pairs =0

Type is A2

electronic geometry - linear

molecular geometry - linear

Bond angle = 180

hybridization sp

2) CH3COOH