equations Flashcards
1
Q
how do you work out the empirical formula?
A
- write symbol for each element
- write mass of each in g
- write relative atomic mass
- mass/ RAM
- divide each by smallest
2
Q
what is the equation for concentration?
A
concentration(G dm-3) = mass of solute (g)
——————————-
volume of solution (dm3)
3
Q
what is the equation for mass of solute?
A
mass of sulute= concentration X volume
4
Q
what is the equation for volume?
A
mass of solute / concentration
5
Q
what is the eqation for number of moles?
A
mass (g) / relative atomic mass
