MGCCC, Perk Learning Lab
TLM
CHEMISTRY EQUATIONS & UNIT CONVERSIONS
°F
= 9 (°C)
+ 32° OR °F = 1.8 °C + 32° (remember 
= 1.8)
5
°C
= 5 (°F
– 32) OR °C = (°F -
32°)
9 1.8
K = °C + 273.15 AND °C = K – 273.15
Specific Heat – amount of
heat required to raise the temperature of one gram of the substance one degree
C with no change in phase.
Specific Heat = amount of heat in Joules Units
for Specific Heat are cal
.
(mass in grams) ( Temp change in C) ( g·C)
Heat absorbed = SH (m) (T2 – T1) 1 cal = 4.184 J STP (standard temperature and pressure)
SH = Specific Heat 1 Kcal = 1000 calories T= 273 K, P = 1 atm
m = mass in gram 1 atm = 760 torr = 760 mm Hg
DT = T2 – T1 1 atm = 101, 325 pascals
D = m/v D = Density, m= mass, v= volume Units for density are: g/ mL or g/ cc or g/ L (gasses only)
Specific gravity (sg) is the same numerical value as density at 20 °C. However, sg has no units, it is dimensionless.
Prefixes Symbol Conversions Examples
Giga G 1 G = 109 (billion) base unit 1 GL or 109 L
109 L 1GL
Mega M 1M = 106 (million) base unit 1 Mm or 106 m
106 m 1 Mm
Kilo K 1K = 103 base unit 1Kg or 1000 g
1000 g 1Kg
Hecto
H 1H
= 100 base unit 1HL or 100 L
100 L 1 HL
Deka Da 1Da = 10 base unit 1DaL or 10 L .
10 L 1 DaL
g, L, m, s, etc. (base unit)
deci d 10 d = 1 base unit 10 dL or 1L .
1 L 10 dL
centi c 100 c = 1 base unit 102 cL or 1L .
1 L 100 cL
milli
m
1000 m = 1 base
unit
103 mg
or 1g .
1g 1000mg
micro
F 106
(million) F
= 1 base unit 106 FL or
1L .
1 L 106 FL
nano n 109 (billion) n = 1 base unit 109 nm or 1m .
1 m 109 nm
|
LENGTH |
MASS |
VOLUME |
TIME |
|
1 in = 2.54 cm |
1 oz = 28.35 g |
1mL = 1 cc = 1 cm3 |
1 hr = 3600 s |
|
1 m = 39.37 in |
16 oz = 1 lb |
1 qt = 2 pt |
60 s = 1 min |
|
1 m = 3.28 ft |
1 lb = 453.6 g |
1qt = 0.946 L |
60 min = 1hr |
|
1 mile = 1.609 km |
1 Kg = 2.205 lb |
1gal = 3.788 L |
|
|
1 mile = 5280 ft |
1 ton = 2000 lb |
1 gal = 4 qts |
|
|
1 cm = 10 mm |
1 g = 15.43 grains |
1 L = 33.81 fl oz |
|
|
1 yd = 0.9144 m |
|
1 L = 1000cm3 |
|
|
1 yd = 3 ft |
|
1 fl oz = 29.57 mL |
|
|
1 mile = 1.609 km |
|
1 L = 1.056 qt |
|
|
1 Km = 0.6215 mile |
|
|
|
|
1 D = 1 x 10-10 m |
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|
|
Avogadro’s Number = 6.022 x 10 23
molar mass = formula weight (abbreviated FW), units are g/ mol
FW = AMU (which stands for atomic mass unit)
1 mol of ANY Ionic compound contains 6.022 x 10 23 formula units (Abbreviated as FU)
1 mol = 6.022 x 10 23 molecules
|
AREA |
VOLUME |
SURFACE AREA |
|
Square = a2 |
Cube = a3 |
Cube = 6a2 |
|
Rectangle a*b |
Rectangular prism = a * b * c |
Sphere = 4 J r2 |
|
Parallelogram = base * height |
Cylinder = base * height Or Cylinder = J r2 h |
|
|
Trapezoid = height/2 (base1 + base2) |
Pyramid = (1/3) b* h |
|
|
Circle = J * radius2 |
Cone= (1/3) b*h Or Cone= 1/3 J r2 *h |
|
|
Ellipse = J * radius1* radius2 |
Sphere= (4/3) J r3 |
|
|
Triangle = (1/2) base * height |
|
|
KE = ˝ mv2 KE = Kinetic Energy, m = mass, v = velocity
Molecular Formula: MF = (Empirical Formula) (Molecular Weight/ Empirical Weight)
IDEAL GAS LAW
PV = nRT P = pressure in ATM
V = volume in Liters
n = moles (or m/MW which is mass in grams over molecular weight in grams/mol)
R = gas constant 0.0821 (L · ATM)/( mol · K)
T = temperature in Kelvin
COMBINED GAS LAW
P1V1 = P2V2 P = pressure in ATM
T1 T2 V = volume in Liters
T = temperature in Kelvin
Wavelength = l = c/v where c = 3 x 108 m (speed of light); v = frequency
Energy of Light Equation: E = hv where h = 6.63 x 10-34 J·S; v = frequency
Rydberg equation: 1/l = R [(1/n12) – (1/n22)] where R = 1.097 x 107 m-1; n1 is smaller than n2
de Broglie Wavelength Equation: l = h/(mv) where h = 6.63 x 10-34 kg·m2/s (plank’s constant); m = mass; v = frequency