Question

Suppose that the student took one more volume reading of 24.2 mL but forgot to measure the pressure. Compute the pressure expected for that volume.
kg/cm²

Answer 1

I don’t have the earlier pressure/volume measurements or the fit/equation from your experiment, so I can’t compute a numeric pressure for 24.2 mL yet. Tell me either
- the list of measured (V, P) pairs, or
- the equation of the fit you used (for example P = a + bV, or P = m(1/V) + c, or PV = constant with the constant value),

and I’ll compute the expected pressure (in kg/cm²).

How to compute it (choose the method that matches your analysis):

1) If you assume Boyle’s law (PV = constant):
- estimate k = average of Pi·Vi across your measurements: k = (1/n) Σ(Pi Vi)
- expected P at V = 24.2 mL is P = k / 24.2
(note: 1 mL = 1 cm³, so keep those units for consistency)

2) If you used a linear fit P = a + bV:
- expected P = a + b·24.2

3) If you fit P versus 1/V, P = m(1/V) + c:
- expected P = m/(24.2) + c (with V in mL = cm³)

If you want an uncertainty on the prediction, send the measurement uncertainties or the fit standard errors and I’ll propagate them. Send the data or fit and I’ll compute the numeric answer.