Minggu, 13 Oktober 2013

EVIL MAKNAE OF SUPER JUNIOR: KYUHYUN OPPA :)


Kyuhyun sudah dikenal penggemarnya sebagai evil maknae di Super Junior. Hal tersebut juga diakui oleh Ryeowook saat tampil di "Radio Star". Ia membeberkan "kelicikan" Kyuhyun sebagai member SuJu paling muda. 


Ryeowook mengatakan semula adalah maknae tapi posisi itu direbut Kyuhyun yang bergabung 6 bulan setelah SuJu debut. Salah satu kelicikannya adalah ketika menghindar tugas memasak. Selain itu masih ada ulah Kyuhyun setelah minum alkohol padahal itu dilarang di dorm. 

Kyuhyun pernah masuk ke kamar Ryeowook setelah minum alkohol dan sambil menangis mengatakan itu disebabkan oleh . Ryeowook kemudian menjelaskan bahwa Leeteuk memang memiliki area khusus yang tidak mengijinkan orang luar untuk masuk. 

"Kyuhyun sangat cerdik," ungkap Ryeowook. "Ketika kami bikin ramen biasanya maknae yang harus memasaknya, tapi dia sengaja membuatnya jadi sungai Han sehingga dia tidak akan diperintah memasak lagi." 

Sesama member di Super Junior-K.R.Y. itu juga menuturkan kisah saat Kyuhyun mengulang kesalahan ketika masak daging ham. Kyuhyun memakai minyak wijen, bukannya minyak goreng, ketika memasak daging ham tersebut. 

Penuturan Ryeowook tersebut disetujui host "Radio Star" lainnya yang juga mengakui bahwa Kyuhyun itu cerdik. Meski begitu, pelantun OST "Pasta" ini mengaku benar-benar tak tahu perbedaan minyak untuk memasak. "Aku tidak pernah memasak sebelumnya," ucap Kyuhyun.

Read more: http://www.wowkeren.com/berita/tampil/00041055.html#ixzz2hbLfCaGY

TIMNAS U-19 Vs KORSEL 3-2 II INDONESIA WIN

Solopos.com, JAKARTA— Indonesia mengukir sejarah setelah berhasil menghempaskan Korea Selatan dengan skor akhir 3-2 pada laga lanjutan kualifikasi Piala AFC U-19 di Stadion Gelora Bung Karno (GBK) Jakarta, Sabtu (12/10/2013) malam WIB.




Evan Dimas Sudarmono menjadi pahlawan karena mencetak hattrick dalam pertandingan bertensi tinggi tersebut. Hasil itu mengantarkan Indonesia mengantongi tiket ke putaran final Piala AFC U-19 2014 yang rencananya akan digelar di Myanmar. Mereka memuncaki Grup G dengan meraih poin penuh, 9 poin.

Minggu, 06 Oktober 2013

ARTICLE 2 : ORGANIC CHEMISTRY EXPERIMENT

SUBSTITUTION REACTION ANALYSIS OF 
TERTIARY BUTYL ALCOHOL AND BROMOBENZENE
By
Ni Ketut Sepmiarni 
Chemistry Education Department, FMIPA, UNDIKSHA
Udayana Street Singaraja, Bali
Emai: arnisepmiarni@yahoo.com

Abstract 

The aim of the experiment was to identify the substitution reaction of tertiary butyl alcohol through nucleophilic reaction as well as the product and bromobenzene through electrophilic reaction as well as the product. The method used in this experiment was divided into two procedures namely nucleophilic substitution procedures and electrophilic substitution procedures. The tertiary butyl alcohol and Bromobenzene were prepared by the laboratory assistant as the subjects of this experiment. The object was the mechanism as well as the product of the substitution reaction. The mechanism and the product of this reaction were obtained by observing the physical and chemical properties appear during the treatment. The result of this experiment is nucleophilic reactions of tertiary butyl alcohol result tertiary-butyl-chloride with volume 3.8 mL by boiling point 50-51C and for electrophilic reaction of bromobenzene results p-bromonitrobenzene with mass 3.43 grams, percent purity 67.9% and error percentage of 32 %. 

Key word: nucleophilic, electrophilic, substitution reaction

Minggu, 22 September 2013

ARTICLE 1: ORGANIC CHEMISTRY EXPERIMENT

DETERMINATION THE NAME AND STRUCTURE OF UNKNOWN SAMPLE ORGANIC SUBSTANCE BY QUALITATIVE ANALYSIS

By
Ni Ketut Sepmiarni
Chemistry Education Department, FMIPA, UNDIKSHA
Udayana Street Singaraja, Bali

Abstract

The aim of the experiment was to determine the name and structure of organic substance that contain in unknown sample through determine physical properties namely melting point, identify component of organic compound through identification of carbon and hydrogen, identification of oxygen, identification of sulfur, nitrogen, and halogens, detect functional group such as unsaturated, aliphatic or aromatic, hydroxyl group of alcohol, fenolat group, aldehyde group, carboxyl group, ester, eter, and nitro group, and derivative compound of organic substance that contain in unknown sample. The object of this research is unknown sample (white powder) of organic substance that already prepared and only known by laboratory assistant. The method used in this experiment was qualitative analysis. The result of this research indicated that the unknown sample is benzoic acid by IUPAC name with chemical formula (C7H6O2). This result was supported by the melting point 121.5oC – 122oC , positive content element carbon, positive contain unsaturated bond means has double bond, has carboxyl group, positive hydroxyl group of alcohol,  aromatic compound, positive of ester that indicated derivate of carboxylic acid, and produce fruit aroma.
Key word: organic compound, qualitative analysis, benzoic acid

The Word "Love"


Love is ......???
You can give comment here..,
But for me love is chemistry. Without chemistry each other, there is no love.

Love is when my heart melted  if I meet him.












TESTING ACID & BASE BY USING LITMUS PAPER

This video can be used to explain testing of acid and base solution by using Litmus paper. 


(Video from YouTube)

CHEMISTRY OF NOBLE GAS

Noble gases are a special group because it is the most stable group in the periodic table. Noble gases have electron valence configuration s2p6, except helium with electron valence configuration s2. This structure cause noble gases are unreactive. Although noble gases are stable and unreactive but, it could form compounds with some mechanisms. Beside that, noble gases are useful in human life. In this essay will explain briefly the properties of noble gases, their uses, as well as some compound of noble gases and their ways of preparation.
In periodic table, group of VIIIA also called noble gases group. In one period, the noble gas has smallest atomic radii. The elements of the noble gas group are not very   reactive because they are stable (have eight electrons in the valence shell). The noble gases are, in fact, comparatively unreactive, but some (especially xenon and krypton) are not “inert” even though that label was once applied to the noble gas.  Elements belonging to noble gases are He, Ne, Ar, Kr, Xe, and Rn (James E. House, 2008). Some properties of noble gases can be seen in the following table.

Elements belonging to noble gases are He, Ne, Ar, Kr, Xe, and Rn. First is helium (He), this element was named helium the Greek word helios, its mean “sun”. (James E. House, 2008). In 1968 Pierre Jansen found evidence of He during the total solar eclipse when he detected a new line in the solar spectrum. In 1895, Ramsay discovered He in the uranium mineral cleveite. At the same time, the Swedish chemists Cleve and Langlet discovered He in cleveite. In 1907 Rutherford and Royds demonstrated that alpha particles are He nuclei (Yulianto Mohsin, 2005). It has long been related to nuclear chemistry because of the formation of alpha particles (  4He2+) during the decay of heavy nuclei.