An easy way to get through Stoichiometric calculations in chemistry is to use
Dimensional Analysis in
conjunction with a table of units like this one (in glorious
ASCII):
L of A -------------------------------------- L of B
|| -1- ||
|| ||
|| -2- || -3-
|| ||
g of A -------------------------------------------------------- g of B
-4- || -1- || -5-
|| ||
|| ||
|| ||
Particles of A ------------------------------- Particles of B
-6- -1- -7-
Where '\' is a
fraction bar:
-1- coefficient of B \ coefficient of A
-2- 22.4 L \ 1 mol
-3- 1 mol \ 22.4 L
-4- molecular mass (g) \ 1
-5- 1 \ molecular mass (g)
-6- 6.02x10^23 Particles \ 1 mol
-7- 1 mol \ 6.02x10^23 Particles
NOTE: -2- and -3- are only applicable to
gasses at
STP
When you master Stoichiometric calculations, everyone in your
Chemistry class will think you
shit diamonds from a
platinum asshole. You may also become
quite popular.
Xerox your homework and sell it.
It worked for me.