Test 1

Question 1

What row of element can exceed the octet rule?

Answer 1

The third row and heavier

Question 2

Equation for Formal Charge:

Answer 2

The # of valence electrons on free atom - number of valence electrons assigned to atom in molecule

Question 3

Equation for the number of valence electrons assigned to a molecule:

Answer 3

Number of lone pair electrons + 1/2 the number of shared electrons

Question 4

An acid is a proton ________.

Answer 4

Donor

Question 5

A base is a proton _________.

Answer 5

Acceptor

Question 6

A nucleophile is a ______

Answer 6

Base

Question 7

An electrophile is a ______

Answer 7

Acid

Question 8

PKa of CH3CH3 and its conjugate base:

Answer 8

50

CH3CH3-

Question 9

PKa of NH, RNH2, R2NH and its conjugate bases:

Answer 9

36

NH2-, RNH-, 2N-

Question 10

PKa of H2 and its conjugate base:

Answer 10

35

H-

Question 11

PKa of HCCH and its conjugate base:

Answer 11

26

HCC-

Question 12

PKa of H2O, CH3OH and its conjugate bases:

Answer 12

16

HO-, CH3O-

Question 13

PKa of HCL, H2SO4, HI and its conjugate bases:

Answer 13

Less than 7

Cl-, HSO4-, I-

Question 14

The lower the PKa, the _____ the acid is.

Answer 14

Stronger

Question 15

For each column the PKa increases:

Answer 15

20 units