Suppose you titrated a sample of distilled water with EDTA, approximately what volume of EDTA would be required?

It depends upon how much Ca, Mg, Fe, Mn and a few other metals are in the water sample.

To determine the approximate volume of EDTA required for titrating a sample of distilled water, we need to consider some additional information.

EDTA (Ethylenediaminetetraacetic acid) is commonly used as a chelating agent in titrations to determine the concentration of metal ions. In the context of your question, we will assume that the purpose of the titration is to determine the concentration of metal ions in the distilled water sample.

To calculate the volume of EDTA required, we need to know:

1. The concentration of the metal ions present in the distilled water sample.
2. The stoichiometry of the reaction between the metal ions and EDTA.
3. The volume of the sample being titrated.

Without the specific concentration of metal ions or the stoichiometry information, it is challenging to provide an accurate volume of EDTA required. However, I can briefly explain the process of calculating the volume once you have the necessary information.

1. Determine the concentration of the metal ions in the distilled water sample using a suitable analytical method (e.g., atomic absorption spectroscopy, titration, etc.).
2. Determine the stoichiometry of the reaction between the metal ions and EDTA. This will typically involve knowing the number of metal ions that can complex with one molecule of EDTA.
3. Use the stoichiometry information and the concentration of metal ions to calculate the moles of metal ions present in the sample.
4. Use the moles of metal ions and the stoichiometry of the reaction to calculate the moles of EDTA required.
5. Finally, you can determine the volume of EDTA required using the known concentration and the calculated moles.

Remember that the calculation can vary depending on the specific metal ions and stoichiometry involved.