domingo, 26 de enero de 2014

Pressure of Ethyl Acetate

Background information:

The Ethyl Acetate or C4H8O2 is a chemical that have a caracteristic sweet smell, it is used in glue, edcaffeinating tea and cofee and also used in cigarettes. This chemical has no special color, it is like water. The Ethyl Acetetate is made of Acetic acid and ethanol.
The pressure is the unit of force that we use to mesasure the force that have a gas in a particular volume, if we reduce the volume but not the cuantity of gas, the pressure and if the volume is bigger the pressure will be lower.

Procedure:

1. Select a chemical (In our case it will be the Ethyl Acetate)
























2.  Set up a shlenk tube with 5ml of your chemical inside





















3.


4. Attach the pressure sensor and make vacuum inside























5. Record the vapour pressure of your chemical at four different temperatures using logger pro.




6. Clean the shlenk tube and pack it away.

Conclusion:

When higher is temperature, more volatility it will have because the particles move faster due to the energy given by temperature, So, if the Ethyl Acetate particles are  more separated from each other, this will lead to a lower pressure.

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