Final answer:
The molarity of the EDTA solution is 0.1579 M.
Step-by-step explanation:
To find the molarity of the EDTA solution, we first need to calculate the number of moles of calcium in the solution using the given volume and moles. The number of moles can be calculated using the formula:
Moles = Volume (in liters) * Molarity
Plugging in the values, we get:
Moles of calcium = 0.025 L * 1.27×10⁻₂ mol/L = 3.175×10⁻₂ mol
Since the stoichiometry of the reaction between calcium and EDTA is 1:1, the number of moles of EDTA is also 3.175×10⁻₂ mol.
To find the molarity of the EDTA solution, we divide the number of moles of EDTA by the volume in liters:
Molarity of EDTA = Moles of EDTA / Volume (in liters) = 3.175×10⁻₂ mol / 0.02014 L = 0.1579 M