VESPr

Question 1

If the central atom has 2 electron pairs

Answer 1

sp hybridization, shape is linear

Question 2

If the central atom has 3 electron pairs with 0 lone pairs

Answer 2

sp2 hybridization, shape is trigonal planar

Question 3

If the central atom has 3 electron pairs with 1 lone pair

Answer 3

sp2 hybridization, shape is bent

Question 4

if the central atom has 4 electron pairs with 0 lone pairs

Answer 4

sp3 hybridization, shape is tetrahedral. bond angles about 109.5 degrees

Question 5

if the central atom has 4 electron pairs with 1 lone pairs

Answer 5

sp3 hybridization, shape is trigonal pyramidal

Question 6

If the central atom has 4 electron pairs with 2 lone pairs

Answer 6

sp3 hybridization, shape is bent

Question 7

if the central atom has 5 electron pairs with 0 lone pairs

Answer 7

the shape is trigonal bipyramidal

Question 8

if the central atom has 5 electron pairs with 1 lone pair

Answer 8

the shape is seesaw

Question 9

if the central atom has 5 electron pairs with 2 lone pairs

Answer 9

the shape is T-shaped

Question 10

if the central atom has 5 electron pairs with 3 lone pairs

Answer 10

the shape is linear

Question 11

if the central atom has 6 electron pairs with 0 lone pairs

Answer 11

the shape is octahedral

Question 12

if the central atom has 6 electron pairs with 1 lone pair `

Answer 12

the shape is square pyramidal

Question 13

if the central atom has 6 electron pairs with 2 lone pairs

Answer 13

the shape is square planar

Question 14

combined gas law

Answer 14

P1V1 = P2V2
——– ———
T1 T2

Question 15

R gas constant

Answer 15

.0821 atm / mol K

Question 16

Dalton’s Law

Answer 16

P total = Pa + Pb + Pc

Question 17

Partial Pressure

Answer 17

Pa = (Ptotal) (Xa)

Question 18

Partial Pressure Pt. 2

Answer 18

total moles of gas

Question 19

volume derviation

Answer 19

V= m
—-
D

Question 20

density derivation

Answer 20

D = Pm
——
nRT

Question 21

density derivation with MM (molar mass)

Answer 21

D = P (MM)
———–
RT

Question 22

molar mass derivation

Answer 22

MM = DRT
——–
P

Question 23

speed of light

Answer 23

2.98 E8

Question 24

planck’s constant

Answer 24

6.626 E34

Question 25

Avogadro’s number

Answer 25

6.022 E23

Question 26

Energy and electromagnetic radiation

Answer 26

E=hv

E= energy change 
h= planks
v= FREQUENCY

Question 27

frequency and wavelength

Answer 27

c = ^v

c= speed of light
^= wavelength in METERS 
v= wavlength

Question 28

Beer’s law

Answer 28

A = abc

A= absorbance 
b= path length 
a= molar absorptivity 
c= concentration in molarity 

A= log (I0/I)
I0: incident intensity
I: transmitted intensity

Question 29

KINETIC ENERGY AND TEMPERATURE

Answer 29

ek = (3/2) x (R/Na) x T

Na: Avagadros Number
R: Gas constant
T: Temp in K

Question 30

GRAHAMS LAW

Answer 30

v2 = square root OF (3RT)
——
(M)