Spartan

LAB REPORT 12

Experiment:

Spartan

I. -------------------------------------------------

PROCEDURE

The procedure for this experiment is described in:

Laboratory Experiments for Chem.

II. -------------------------------------------------

RESULTS

CH3CN

CC Distance <HCH <HCC Orbitals Geo

1.457 108.78 110.15 Sp3, Sp see ‘A’

SF4

SF Distance <FSF Polar? Orbitals Geo

1.592 109.47 Yes Sp3 see ‘B’

C2H6

CH Distance CC Distance <HCH <HCC Orbitals Geo

1.096 1.531 109.47 109.47 Sp3 see ‘C’

C2H4

CH Distance CC Distance <HCH <HCC Orbitals Geo

1.096 1.531 109.47 41.94 Sp3 see ‘D’

C2H2

CH Distance CC Distance <HCH <HCC Orbitals Geo

1.096 1.194 180 180 Sp3, Sp see ‘E’

NH3

Bond Angle Orbitals Molecular Shape Info

109.47 Sp3 trigonal pyramidal see ‘F’

NF3

Bond Angle Orbitals Molecular Shape Info

109.47 Sp3 trigonal pyramidal see ‘G’

CO3^2-

CO Distance <OCO Orbitals Molecular Shape Info

1.227 120 Sp3, Sp2 trigonal planar see ‘H’

NO2+

NO Distance <ONO Orbitals Info

119.7 180 2p, 2s see ‘I’

CIF3

ClF Distance <FClF Polar? Molecular Shape Info

1.628 180 Yes trigonal bipyramidal see ‘J’

XeF4

XeF Distance <FXeF Molecular Shape Info

2.100 109.47 square planar see ‘K’

PBr5

<Br axP Br ax Molecular Shape Info

 120 trigonal bipyramidal see ‘L’

Lab time ran out, unable to attain remaining values

III. -------------------------------------------------

DISCUSSION

An observation on angles

With a small central atom, the hydrogen atoms lie closer together and the bond angle must increase to maximize the distance between each atom. However, as the central size of the central atom increases, the distance between each hydrogen atom also increases. This is consistent throughout...