Measurement of magnetic susceptibility by Gouy’s method

Procedure:

  1. Set up the Gouy balance with the electromagnet and analytical balance.
  2. Ensure that the balance is zeroed and calibrated properly.
  3. Measure the mass of the sample tube without the paramagnetic sample and record it.
  4. Fill the sample tube with the paramagnetic sample and place it in the magnetic field.
  5. Record the new mass reading.
  6. Calculate the change in mass (Δm) as the difference between the two readings.
  7. Note the field strength (H) provided by the electromagnet's specifications or measure it using a Gaussmeter.
  8. Use the formula provided to calculate the magnetic susceptibility, χm.

Calculations:

Substitute the values of Δm, g, μ₀, H, and l into the formula: χm = (2 × Δm × g) / (μ₀ × H² × l) to calculate the magnetic susceptibility.

Results:

The magnetic susceptibility (χm) of the given paramagnetic sample is found to be … (in appropriate units).

STEP 1:

Follow the instructions and identify the components.

STEP 2:

Follow the instructions and take all the required readings.

STEP 3:

Calculate the all the data.

STEP 4:

Verify the calculated susceptibility and calculate percentage error.