Chemistry Calculations Reference Sheet
Conversion Factors
Prefix Unit
1 tera- (T-)
=1x1012
1 giga- (G-)
= 1x109
1 mega- (M-)
= 1x106
1 kilo- (k-)
= 1000
1 hecto- (h-)
= 100
41 deka- (da-)
= 10
1Base Units – g, m, L
=1
1 deci-(d-)
= 0.1
1 centi-(c-)
= 0.01
1 milli- (m-)
= 0.001
1 micro- (µ-)
= 1x10-6
1 nano-(n-)
= 1x10-9
1 pico- (p-)
= 1x10-12
1 femto- (f-)
= 1x10-15
Base Unit
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
meters, grams, or liters
Ex. Order of
Magnitude
3 hm = 300 m
300 cg = 30 dg
300 mL = 3 dL
g → moles (mol)
… g x 1 mol
= ? mol
molar mass
.
(g)
.
mol → atoms (at), molecules (mo), formula units (fu)
… mol x 6.022x1023 at or mo = ? at or mo
1 mol
.
grams (g) → at, mo, fu
… g x 6.022x1023 at, mo, fu = ? at, mo, fu
molar mass (g)
Percent (%) Composition
Molar Mass of Element x 100 = % of Element in Compound
Molar Mass of Compound
.
Calculating Grams of Element in a Compound
% of Element x Grams of Compound Given = Mass of Element in Compound
100
.
Percent Hydrate in Compounds
18.01 g H2O x # mol of H2O
Molar Mass of Compound
x 100 = % Hydrate in Compound
.