Equations Flashcards
1
Q
relative atomic mass
A
isotope 1 x abundance + isotope 2 x abundance / 100
2
Q
percentage of element
A
number of atoms of element x relative atomic mass of element / relative formula mass of compound x 100
3
Q
moles
A
mass /mr
4
Q
number of molecules
A
moles x avogadros constant
5
Q
uncertainty
A
range/ 2
6
Q
percentage yield
A
actual mass of desired product / theoretical mass of product x100
7
Q
atom economy
A
relative formula mass of desired product / sum of relative formula mass of all reactants x100
8
Q
volume
A
moles x 24
9
Q
concentration
A
mass of solute/ volume of solution
10
Q
cm cubed to dm cubed
A
divide by 1000
11
Q
unit for volume
A
dm cubed
12
Q
pH
A
-log[H+]
13
Q
[H+]
A
10^-ph
14
Q
moles titrations
A
concentration x volume / 1000
15
Q
concentration conversion from mol/dm cubed to g/dm cubed
A
concentration x relative formula mass
