Tuesday, April 14, 2009

CHEMICAL PROPERTIES OF ALCOHOL

3 CHEMICALS PROPERTIES OF ETHANOL:

1) Combustion of Ethanol - that will produce carbon dioxide and water
2) Oxidation of Ethanol - that will produce ethanoic acid and water
3) Dehydration of Ethanol - that will produce ethene gas

Today, students of 5 Server successfully did the activity on Oxidation and Dehydration of Ethanol.

THE OXIDATION AGENT - ACIDIFIED POTASSIUM DICHROMATE (VI)



THE GIRLS HEATED THE MIXTURE OF ACIDIFIED POTASSIUM DICHROMATE (VI) AND ETHANOL



THE DISTILLATE COLLECTED (WATER) - THE BOYS' GROUP DISTILLATE



DEHYDRATION OF ETAHOL - THE GIRLS HEATED THE POROUS POT CHIPS (THE PORCELAIN CHIPS)THAT ACT AS CATALYST OF THE DEHYDRATION PROCESS



OUR NEXT CHEMISTRY CLASS WILL BE FOCUSING ON CARBOXYLIC ACID... HAPPY STUDYING...

5 comments:

Sarah Alia Shahrim said...

salam
teacher...
sy da wat dehydration tuh..
da dapat collect 2 test tube full of ethene gas...tapi naper bla wat test ngan acidified potassium manganate ngan potassium dichromate,,,
naper x jadi colourless???

rajiah said...

Ish.. ye ke.. Sarah..,masa masukkan acidified potassium dichromate tu, make sure gas ethene tak terlepas keluar.. dan selepas sudah dimasukkan, goncang kuat-kuat tabung uji.. insyaAllah akan bertukar warna dari purple ke colorless

Hood said...

teringat eksperimen ni :D

rajiah said...

Salam,

Hudzaifah.. selamat meneruskan perjuangan anda dalam kimia di IPT.. jangan lupakan kimia anda... :)

anne aris said...

wakkkakak!! ktembaman mlande diriku.. hhahaha!! tp gempak weyh, group kitorg dpt gak kumpulkan gas H smpai mletop.. ngeek~~ -apple31-