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ΔTf=Tf,solvent−Tf,solutioncap delta cap T sub f equals cap T sub f comma solvent end-sub minus cap T sub f comma solution end-sub Using the formula Kfcap K sub f for cyclohexane is approximately ), you find the molality and then the moles of solute.

Usually, cyclohexane is used as the solvent. Its pure freezing point is recorded from a cooling curve.

A solid lab report for this experiment typically includes the following data sections and calculations: freewebmaps

The lab report (often listed as Experiment 14 in chemistry courses) is a common laboratory exercise used to determine the molar mass of an unknown substance through freezing point depression , a colligative property. Key Components of the Report

The final result is found by dividing the mass of the solute used by the number of moles calculated. Typical Lab Report Values A solid lab report for this experiment typically

Solved Experiment 14 Report Sheet Molar Mass of a Solid Date

The freezing point is measured again after a known mass of an unknown solid solute is added to the solvent. Calculation of ΔTfcap delta cap T sub f : This is the change in freezing point, calculated as: Calculation of ΔTfcap delta cap T sub f

Reports available on academic platforms like Studocu and Chegg often show: ~8-10 grams. Kfcap K sub f for Cyclohexane: Solute Mass: Roughly 0.2 to 0.5 grams per trial.