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

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. freewebmaps

A solid lab report for this experiment typically includes the following data sections and calculations: The lab report (often listed as Experiment 14

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