Friday, June 19, 2009

Chemistry experiment!!!

On 17/6/09, our class had done our first chemistry experiment.

We all are very excited !!

It was the first experiment that conducted by ourselves; not by group; by invidual

But it was dismay that our school did not supply any safety clothes to us.

We were not wearing any special cloth and glove when the experiment is carry on.

But it was fine, we complete that experiment successfully!

Here, i would like to tell you all what is the experiment about..

1)First, pipette 25.0cm3 of KA2 into a titraton flask.

2)Then, add two or three of phenolphthalein indicator and titrate this solution with KA1.

3)After than, record the readings in the table.

4)Next, Repeat the titration as twice times as many times as we think neccessary to achieve accurate results. But we only did it twice because Teacher LTP ask us to do only two times.

The purpose of this experiment is to determine the exact concentration of a mineral acid, HXO4, and to determine the relative atomic mass of the element X.

Here, i can't show u the photo because no people had camera that day!!


Andrew said...

i am the only one who broke the apparatus >.<