VOLUME AND PRESSURE EXPERIMENT

VOLUME AND PRESSURE EXPERIMENT

X (volume:mL)	Y (Pressure: hPa)	Inverse pressure (hPa)
20	625	0,0016
25	375	0,002666667
30	100	0,01
35	-50	-0,02
40	-200	-0,005
45	-275	-0,003636364
50	-375	-0,002666667
55	-425	-0,002352941

CONCLUSIONS:

Watching our graphs and table we can conclude that the volume is inversely proportional to the pressure prooving Boyle-Mariotte´s law. Therefore, when the volume increases pressure decreases, and when pressure increase volume decrease.
With this information we can also understand how the pressure in gases may vary.
We conclude stating that both graphs represent, as we have said before, Boyle-Mariotte´s law which exemplify  how the pressure of a gas lays ot to decreasing as it volume increases.
The mathematical expression for this law is:

or

  P(pressure), V (volume), k (constant)

We may use this equation when we compare the selfsame but under different situations so therefore we can observe tha changes made upon it. Finally, with this we can conclude that this last equation is used during this experiment for watching the changes upon our gas.

Lab sesion 2: Comparing characteristics of different substances 4-10-2013

In this photograph we are testing the solubility of a substance in water. 

In this image we are testing if magnesium will melt after a minute being heated with a bunsen burner. In the end the result was that it did not melt so it´s melting point is high.

How to secure a Schlenk tube

In order to prepare a Schlenk tube, we need the elastic band to secure the tube. To do this, we put the elastic band in the way we see it in the video.

LAB SESSION 30-09-2013

Lab Session 30-09-2013

In both of these images we can see a Schlenk tube. During this lab session we will be working with this material learning how to prepare it.

The Schlenk tube has a small valve that can be opened or closed depending on what direction you turn the stopcock.