How to prepare 1l solution of Fe(NO3).9H2O?
After that we can titration with EDTA.
Your question is not complete. It has no concentration. There is no such chemical either. To make a solution just add whatever amount of Fe(NO3)2.9H2O or Fe(NO3)3.9H2O to a flask and make the final volume 1,000 mL.
Thank you!
You are absolutely right it was technical mistake the name.
Correct is Fe(NO3)3.9H2O.
The solution have to be 0.50 mol.
To prepare a 1L solution of Fe(NO3)3.9H2O, you'll need to follow these steps:
1. Determine the molar mass of Fe(NO3)3.9H2O:
- The molar mass of Fe is 55.85 g/mol.
- The molar mass of NO3 is 62.00 g/mol.
- The molar mass of H2O is 18.02 g/mol.
- Fe(NO3)3.9H2O contains 1 Fe, 3 NO3, and 9 H2O molecules.
Calculation:
Molar mass = (1 * molar mass of Fe) + (3 * molar mass of NO3) + (9 * molar mass of H2O)
2. Calculate the amount of Fe(NO3)3.9H2O needed:
- The desired concentration of the solution is not mentioned, so let's assume it to be 'x' M.
- In 1 liter of solution, there would be 'x' moles of Fe(NO3)3.9H2O.
Calculation:
Moles = Volume (in L) x Concentration (in M)
Moles = 1L x x
Moles = x
3. Calculate the mass of Fe(NO3)3.9H2O needed:
Calculation:
Mass (in g) = Moles x Molar mass
Now, let's say you want to titrate the Fe(NO3)3.9H2O solution with EDTA. The procedure for titration would involve:
1. Prepare the EDTA solution:
- Determine the molar mass of EDTA (ethylenediaminetetraacetic acid) and calculate the amount needed to achieve the desired concentration.
- Dissolve the calculated mass of EDTA in distilled water to make a solution in a suitable volume, depending on the titration requirements.
2. Set up the titration apparatus:
- Prepare a burette filled with the EDTA solution.
- Pipette a known volume of the Fe(NO3)3.9H2O solution into a conical flask.
- Add a few drops of appropriate indicator (e.g., Eriochrome Black T) to the flask.
3. Perform the titration:
- Slowly add the EDTA solution from the burette into the flask, while stirring continuously.
- Observe the color change in the solution which indicates the endpoint of the titration.
- The color change occurs when all the Fe(III) ions have reacted with the EDTA, forming a stable Fe-EDTA complex.
- Record the volume of the EDTA solution added from the burette.
By following these steps, you can prepare a 1L solution of Fe(NO3)3.9H2O and perform a titration with EDTA.