Solved: (Ill) You have a vial of an unknown liquid which

Chapter , Problem 87

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(Ill) You have a vial of an unknown liquid which might beoctane (gasoline), water, glycerin, or ethyl alcohol. You aretrying to determine its identity by studying how its volumechanges with temperature changes. You fill a Pyrex graduatedcylinder to 100.00 mL with the liquid when the liquidand the cylinder are at 0.000C. You raise the temperaturein five-degree increments, allowing the graduated cylinderand liquid to come to equilibrium at each temperature. Youread the volumes listed below off the graduated cylinder ateach temperature. Take into account the expansion of the Pyrexglass cylinder. Graph the data, possibly using a spreadsheetprogram, and determine the slope of the line to find theeffective (combined) coefficient of volume expansion /3. Thendetermine (3 for the liquid and which liquid is in the vial.Temperature (C) Volume Reading (apparent mL)0.000 100.005.000 100.2410.000 100.5015.000 100.7220.000 100.9625.000 101.2630.000 101.4835.000 101.7140.000 101.9745.000 102.2050.000 102.46