For the IMAT you must remember Avogadro’s number. Remember that this number is the value of one mole.
1 mole = 6.022 x 10^{23 }= Avogadro’s number
M: molar mass (g/mol)
m: mass (g)
n: moles (mol)
Remember this formula, but ensure you understand the chemistry behind it.
c: concentration
n: moles
V: volume
This tells us the molar concentration of a solution. Remember that concentrations can be given in other ways, such as mass per volume. The above formula is however the most common for the IMAT
c_{1}V_{1} = c_{2}V_{2}
If ever you see a ‘before and after’ case of a solutions volume and concentration, then this formula is likely what you need to use.