The Objective of this lab is to experimentally determine the molar mass of an unknown and volatile liquid.

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THE RELATIVE MOLECULAR MASS OF VOLATILE LIQUIDS

Objective

The Objective of this lab is to experimentally determine the molar mass of an unknown and volatile liquid.

Equipment

* Hot Plate

* 200 mL Flat Bottom Flask

* 1000 mL Beaker

* 600 mL Beaker

* Flask Clip

* Flask Cap

* Cork

* Ring Stand

* 25 ml Graduated Cylinder

* Funnel

* Buret Clamp

* 5.1 mL of Unknown A

* Thermometer

Experimental Procedure

1. All essential equipment was obtained from instructor.

2. 5.1 ml of Unknown A liquid was measured in a 25ml volumetric flask.

3. The ring stand was setup and the hot plate was placed on the base of the stand.

4. The empty flat bottom flask was weighed and then the unknown liquid was poured into it.

5. The 1 liter beaker was placed on the hot plate and filled with enough water to submerge the flat bottom flask.

6. Supported by a buret clap attached to the ring stand, the flat bottom flask was lowered into the beaker.

7.