Quiz 1 IMF

Question 1

Sp3 hybridization

Answer 1

tetrahedral

Question 2

Sp2 hybridization

Answer 2

trigonal planar

Question 3

Sp hybridization

Answer 3

linear

Question 4

Tetrahedral hybridization with no lone pairs

Answer 4

tetrahedral

Question 5

Tetrahedral hybridization with 1 lone pair

Answer 5

trigonal pyramidal

Question 6

Tetrahedral hybridization with 2 lone pairs

Answer 6

bent

Question 7

Trigonal planar with 1 lone pairs

Answer 7

bent

Question 8

Trigonal planar with no lone pair

Answer 8

Trigonal planar

Question 9

What causes electron density polarization

Answer 9

electronegative difference

Question 10

Define polarization

Answer 10

shifting of electrons within their orbitals in a bond

Question 11

Polarization results in a

Answer 11

bond moment

Question 12

Non-symmetrical bond moments result in

Answer 12

dipole moments

Question 13

What is a dipole moment

Answer 13

amount of partial charge x distance separated by δ− or δ+

Question 14

What is a dipole moment measured in

Answer 14

Units of debye

Question 15

1 Debye =

Answer 15

10^-18 esu x cm

Question 16

esu of 1 electron

Answer 16

4.80 x 10^-10 esu

Question 17

Dipole moment for molecules with multiple polar bonds

Answer 17

The vector sum of all individual dipole moments

Question 18

Most negative electrostatic charge are what colors

Answer 18

RED

Question 19

Most positive electrostatic charge are what colors

Answer 19

BLUE

Question 20

adhesiveness between molecules affects what

Answer 20

Many properties: solubility, boiling point, density, state of matter, melting point, etc.

Question 21

Neutral molecules are attracted to one another by

Answer 21

dipole-dipole interactions
hydrogen bonding
dispersion forces

Question 22

What is a dipole-dipole interaction

Answer 22

Polar molecules line up on opposite charges

Question 23

Why are hydrogen bonds so strong

Answer 23

because partial charges (δ− or δ+) are relatively large

Question 24

When will a hydrogen bond have a large partial positive charge

Answer 24

When a hydrogen shares electrons with highly electronegative atom (O, N, F, Cl)

Question 25

Are H-bonds stronger or weaker that covalent bonds

Answer 25

Weaker

Question 26

What are protic compounds

Answer 26

Compounds with H atoms that are capable of forming H-bonds

Question 27

Polar compounds mix well if

Answer 27

Compounds being mixed are all capable of H-bonding and/or strong dipole-dipole interactions

Question 28

Non-polar compounds mix well if

Answer 28

none are capable of strong attractions, so that no strong attractions are broken down for them to mix