SALT SOLUTION

Properties of Salt Solution

      1. Has a salty taste

      2. Can not change red litmus paper and blue litmus paper

      3. An electrolyte solution because it can ionized into ions in water

      4. Conduct electricity

      5. pH=7 ( or closed to seven)

BASE (ALKALINE) SOLUTION

Properties of Base Solution
1. Has a bitter taste
2. Can change red litmus paper to blue
3. An electrolyte solution because it can ionized into ions in water
4. Conduct electricity
5. pH>7

ACID SOLUTION

Identify Acid Solution by using Litmus Paper and Indicator Universal

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 Leeteuk. 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.

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

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

Emai: arnisepmiarni@yahoo.com

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 121.5^oC – 122^oC , 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