Intermezzo and some results, straight from Ms. Ine

Now these are some definite results from the practical, as told by Ms. Ine Medyawati (thx).

Question 1, Titration with Uncommon Acid

Ms. Ine got around 19.4, 19.45 and 19.6 I think. But I did not know what volume that she used. Anyway, congratulation for all of you who got those results (hahaha, I got 18.1. Dang!). or the acid

And for the Mr. It is, as expected, ethanoic acid (Mr: 60).

Question 2, Determining x in MgSO4.xH20

x is 7. It was quite confusing, how did they prepare 7?

Question 3, Another Qualitative Analysis, with Uncommon Procedure

We were given FA5, FA6, FA7.

The gas given off is oxygen. FA5 is manganese (IV) oxide (MnO2). It acts as catalyst and oxidising agent for the reaction involving KI. Manganese is found in transition metal group (check the other part in our periodic table provided in this blog).

FA7 is Fe2+ and it will turn into Fe3+ after it is mixed with FA6. So FA6 acts as oxidising agent.

Good luck for CS students tomorrow! Do your best tomorrow.

Intermezzo

As requested by Daniel Sempuno and I am a man of my word, I will show you the inspiration of this blog's name, Maria Ozawa and Sora Aoi.



This is the picture of Maria Ozawa. She is a model and an actress. Cute isn't she?



And this is Sora Aoi. I do not know what is her occupation though.

So Daniel, I hope you are satisfied.