The solution dilution formula is M1V1 = M2V2, also written as C1V1 = C2V2. This equation is used to calculate the concentration or volume of a stock solution needed to create a new, more diluted solution.
M1 = (M2 × V2) / V1
mol/L
M1 =
V1 = (M2 × V2) / M1
mol/L
mol/L
V1 =

