# phychem7 - DATA AND CALCULATIONS Table 1 Experimental Data...

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DATA AND CALCULATIONS Table 1 . Experimental Data ( Trial 1 ) Sampl e No. Description Temperature, O C n V n L 1 Pure Acetone 55.0 1.3511 1.3500 2 About 58 O C 58.0 1.3601 1.3707 3 About 58 O C 60.0 1.3664 1.3726 4 About 58 O C 62.0 1.3847 1.3918 5 About 58 O C 63.5 1.3942 1.3984 6 72.0 1.4003 1.4027 7 58.0 1.4350 1.4003 8 62.5 1.4231 1.4199 9 63.5 1.4024 1.4048 10 78.0 1.4047 1.4070 Table 2 . Experimental Data ( Trial 2 ) Sampl e No. Description Temperature, O C n V n L 1 Pure Acetone 55.2 1.3519 1.3530 2 About 58 O C 58.0 1.3634 1.3659 3 About 58 O C 60.0 1.3700 1.3686 4 About 58 O C 62.0 1.3761 1.3820 5 About 58 O C 63.5 1.3896 1.3927 6 65.0 1.3960 1.4002 7 56.3 1.4358 1.4347 8 62.5 1.4249 1.4206 9 63.5 1.4045 1.4048 10 66.0 1.4057 1.4068 The refractive indeces n V and n L of the vapor and liquid respectively is used to determine the mole fraction of chloroform, CHCl 3 . Referring on Table 3, the mole fraction is interpolated given the experimental index.

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Table 3. Refractive-index vs. Composition for Acetone-Chloroform Mixtures For the acetone mixture (sample 2, trial 1), the vapor has a refractive index of 1.3601 and interpolating to obtain the concentration of CHCl 3 , ; Y=concentration, X=refractive index ; =mole fraction x x Table 4 . Summary of mole fractions of the Vapor and Liquid mixtures (
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