Che107 Symbols & Equations

Front 1

H

Back 1

enthalpy

Front 2

c

Back 2

speed of light

3.00E⁸

Front 3

λ

Back 3

Greek lambda

wavelength

Front 4

ν

Back 4

Greek lower case nu

should look like a v with the ends bent over

frequency (of waves)

Front 5

Δ

Back 5

Greek Delta

change

Front 6

Ψ

Back 6

Greek psi

Front 7

c=λν

Back 7

speed of light=wavelength*frequency

Front 8

Hz

Back 8

hertz, cycles per second

Front 9

h

Back 9

Planck's Constant

6.626E⁻³⁴

Front 10

E

Back 10

energy of single quantum

Front 11

E=hν

Back 11

Energy of photon=Planck's constant * nu (frequency)

Front 12

R_H (should be R sub H)

Back 12

Rydberg constant

1.096776E⁷m⁻¹

Front 13

n

Back 13

energy level, corresponds to period of PTE, theoretical infinite, direct relationship to energy and indirect to stability

Front 14

T

Back 14

temperature
K kelvin
C celsius
F farenheit

Front 15

g

Back 15

gram

Front 16

m

Back 16

meter

Front 17

L

Back 17

liter

Front 18

metric prefixes

Back 18

G Giga 10^9
M Mega 10^6
k kilo 10^3
d deci 10^-1
c centi 10^-2
m milli 10^-3
μ micro 10^-6
n nano 10^-9
p pico 10^-12
f femto 10^-15

Front 19

e⁻

Back 19

electron

Front 20

superscript of integer followed by + or - sign

Back 20

ionic charge

Front 21

superscript of + or - followed by integer

Back 21

oxidization number

Front 22

amu

Back 22

atomic mass unit

Front 23

Z

Back 23

atomic number


Protons = p = Atomic number = Z = # electrons or e-

Front 24

A

Back 24

atomic mass

Front 25

p

Back 25

proton

Front 26

n

Back 26

neutron

Front 27

Latin prefixes used in naming binary compounds

Back 27

1 mono
2 di
3 tri
4 tetra
5 penta
6 hexa
7 hepta
8 octa
9 nona
10 deca
...
generally for molecular compounds, e.g. non-metal compounds

Front 28

Avogadro's Number

Back 28

6.02E²³

Front 29

physical state

Back 29

(aq) aqueous
(l) liquid
(s) solid
(g) gas

Front 30

M

Back 30

molarity

Front 31

V

Back 31

volume

Front 32

Mconc*Vconc=Mdil*Vdil

Back 32

mass*volume of a concentrate is equal to mass*volume of a dilution of that concentrate

Front 33

Molarity

Back 33

M=moles solute/volume of solution in liters

Front 34

Density

Back 34

D=m/v

Density=mass/volume

Front 35

ΔE=Efinal-Einitial

Back 35

change in energy is final less initial

Front 36

Ek=(1/2)mv²

Back 36

kinetic energy=1/2 * mass * velocity squared

Front 37

v

Back 37

velocity

Front 38

J

Back 38

joule

SI unit of energy

Front 39

q

Back 39

heat

Front 40

w

Back 40

work

Front 41

ΔE=q+w

Back 41

change in energy is the sum of heat + work

Front 42

w=-PΔV

Back 42

work done by an expanding gas at constant pressure

Front 43

ΔH=ΔE+PΔV=qp

Back 43

enthalpy change at constant pressure

Front 44

q=Cs * m * ΔT

Back 44

heat gained/lost based on specific heat * mass * temperature change

Front 45

Cp or Cs

Back 45

specific heat

Front 46

ΔHrxn = ∑nΔHf - ∑mΔHf

Back 46

The change in enthalpy of a reaction is equal to the sum of its products minus the sum of its reactants

Front 47

Δx*Δ(mv)>=h/4pi

Back 47

Heisenberg's Uncertainty Principle
change in position (x) * change in momentum cannot be smaller than Planck's constant / 4 pi

Front 48

Zeff=Z-S

Back 48

effective nuclear charge = # protons less screening constant

Front 49

Zeff

Back 49

effective nuclear charge

Front 50

S

Back 50

Screening Constant

represents portion of the nuclear charge that is screened from the valence electron by core electrons

Front 51

A (with a small circle over A)

Back 51

Angstrom 10⁻¹⁰

Front 52

I₁...

Back 52

I = ionization energy
subscript denotes successive electrons