To convert 500 mm (millimolar) EDTA to molarity (M), we need to understand the relationship between these two units of concentration. Molarity is defined as moles of solute per liter of solution, while millimolarity is defined as millimoles of solute per liter of solution.
Since 1 millimole (mmol) is equal to 0.001 moles, we can convert millimolarity to molarity by using the following formula:
Molarity (M) = Millimolarity (mm) × 0.001
Applying this to our conversion:
M = 500 mm × 0.001 = 0.5 M
Thus, 500 mm EDTA is equivalent to 0.5 M. This means that in 1 liter of solution, there are 0.5 moles of EDTA.