Sunday, March 22, 2009

My Ambition

I want to be a chemical engineer when I grow up.

Chemical engineer produce new material from raw material which is quite fascinating. Chemical engineering is applied in the manufacture of a wide variety of products. The chemical industry manufactures inorganic and organic industrial chemicals, ceramics, fuels and petrochemicals, agrochemicals (fertilizers, insecticides, herbicides),plastics and elastomers, oleochemicals, explosives, detergents and detergent products (soap, shampoo, cleaning fluids), fragrances and flavors, additives, dietary supplements and pharmaceuticals. Closely allied or overlapping disciplines include wood processing, food processing, environmental technology, and the engineering of petroleum, glass, paints and other coatings, inks, sealants and adhesives.

The examples are copy pasted. Lol if u really went to read everything.

From what i know, chemical engineers design processes to ensure the most economical operation. This means that the entire production chain must be planned and controlled for costs. Yup,they do that. For example,they can change certain factors to make reactions faster. Like ammonia is simply produced from its component elements in a high-pressure reactor.

I also learned that chemical engineering has a broad field,covering areas such as bio- and nanotechnology. But I dun really need to worry about it now. Years to go before I really need to decide on major to specialise in. By then,my ambition might alrdy have changed.

Sorry Ms Jee,I don't know any chemical engineer for me to interview them. Sorry.

Strength and Weakness

My weakness in chemistry is organic chemistry. Because it is so hard. Dun ask which one,just.... everything.

My strength in chemistry is writing and balancing equations. I think it's one of the easier topics of chemistry. But i really enjoy this topic.

I really hope the teachers can see that I am being very patronising.

Tuesday, March 3, 2009

Chemistry Lab Lesson 3 March 2009

We went through titration in class today. We are supposed to read through the slides on titration before we came for today's lesson.

To start off titration, we must first rinse the burette and pipette with the reagent we are putting inside them.

Next, fill the conical flask with the reagent using the pipette and then add in 4 to 5 drops of methyl orange indicator.

After that is done, we can set up the apparatus accordingly and start the experiment.

Perform the experiment and observe the end point.

Errors to be avoided:
1) Eyes must be on the same level of the meniscus of the burette when reading the final volume on the burrete
2) Burette must be rinsed with the reagent that we are about to place inside them to prevent inpurities.
3) The tip of the pipette must be tapped against the bottom of the conical flask to give a more accurate volume.

Monday, March 2, 2009

Chemistry Lesson 2 March 2009

We did a concept map with Ms Jee in class today.

This is how it look like,reproduced in Paint :

Mole is not that hard afterall if we break it into smaller points using a concept map.

I also read today that in a neutralization reaction between ammonia and acid,such as sulphuric acid, we can't write H2O into the reaction equation although it is a neutralization reaction.

Sunday, February 22, 2009

I LOVE CHEMISTRY!!!!!!

Yay chemistry rocks. But a blog is redundant though.