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INDIKATOR ALAMI

08.29 |

INDIKATOR ALAMI


 I.LATAR BELAKANG
Indikator asam-basa yang baik adalah zat warna yang memberi warna berbeda dalam larutan asam dan larutan basa. Indikator adalah suatu zat penunjuk yang dapat membedakan larutan, asam atau basa, atau netral.Setiap indicator dilengkapi dengan pita warna yang menunjukkan skala pH.Contoh indicator adalah Kertas Lakmus dan Fenolftalein,keduanya dapat membedakan asam dan basa tetapi tidak dapat digunakan untuk memastikan nilai pH,hal tersebut karena perubahan warna yang terjadi tidak cukup berarti di pH tertentu. Senyawa asam mempunyai rasa yang masam, sedangkan rasa basa mempunyai rasa pahit. Akan tetapi kita tidak boleh mencicipi rasa suatu zat kimia untuk untuk mengetahui sifat asam atau basanya. Hal ini disebabkan senyawa kimia tersebut mungkin beracun. Untuk itu, kita membutuhkan alat bantu seperti kertas lakmus atau indicator alami Penjelasan disini bukan mengenai kertas lakmus tetapi adalah bagaimana Jika orang-orang yang bersekolah dipedesaan ingin membuktikan apakah bahan-bahan seperti sampo,deterjen ataupun yang lainnya tersebut bersifat asam atau basa? Tidak mungkin mereka akan menggunakan kertas lakmus dikarenakan harganya yang sangat mahal. Untuk itu perlu kita tahu bahwa ternyata bahan-bahan disekitar kita seperti bunga mawar,kunyit,wortel,bunga kembang sepatu bisa kita jadikan indicator alami. Indicator alami dengan indicator buatan sangat berbeda. Contohnya adalah sabun, kita mencelupkan kertas lakmus dengan sabun hasilnya sabun bersifat basa,tetapi setelah kita mencampur air sabun dengan kunyit,hasilnya sabun bersifat asam. Letak perbedaan disanalah yang menyebabkan kita menjadi bingung dan berpikir “apakah sabun itu bersifat asam atau basa?”. Sebenarnya kita tak perlu bingung dengan semua itu. Kita mencampurkan sabun itu pada indicator alami dan indicator buatan pabrik,dan hasilnya semua benar tidak ada yang salah dengan percobaan pada kedua indicator tersebut.Tetapi disini saya akan menjelaskan tentang indicator alami agar kita mengetahui bahan-bahan apa sajakah yang bisa kita jadikan indicator alami.



II.RUMUSAN MASALAH
-bahan apa sajakah yang bisa kita jadikan sebagai indicator alami?
-apakah perbedaan antara indicator alami dengan indicator buatan?


III.TUJUAN
-Untuk mengamati perubahan warna indikator pada larutan asam dan basa.
-memprediksi warna dengan indicator alami


IV.MANFAAT
Dapat menjelaskan bahan apa sajakah yang bisa kita jadikan indicator alami.


IV.ALAT DAN BAHAN
1.  Bit                                                                   6. Wortel
2. Bunga kembang sepatu                                       7. Sampo
3. kunyit                                                              8. Sabun
4. Air aqua murni                                                 9. Deterjen
5. kulit buah manggis                                           10. Dan bahan-bahan lainnya

V.CARA PEMBUATAN
1.Bit,kunyit dan kulit buah manggis diparut lalu diambil airnya. Sedangkan bunga kembang sepatu dan bunga mawar digerus lalu diberi sedikit air aqua murni dan diambil airnya.
2.Siapkan bahan-bahan seperti sampo,sabun,jeruk atau bahan-bahan lainnya yang bersifat asam ataupun basa.
3.Bahan-bahan seperti sampo,sabun,jeruk dan lain-lain diberi sedikit air aqua murni. Setelah itu air dari Bit,Bunga kembang sepatu,kunyit,kulit buah manggis dan bunga  mawar.
4.Tunggu hingga terjadi perubahan warna


VI.KESIMPULAN
Selain kertas lakmus merah dan biru,ternyata tanpa kita sadari banyak disekitar kita yang bisa kita gunakan sebagai indikator alami seperti kulit buah manggis,bunga mawar,bunga kembang sepatu,buah bit dan kunyit. Itu berguna bagi anak-anak yang bersekolah dipedesaan yang ingin membuktikan suatu bahan bersifat asam atau basa.






HASIL PERCOBAAN OLEH INDIKATOR ALAMI

BAHAN
EKSTRAK
SIFAT

KUNYIT
KEMBANG SEPATU
MANGGIS
BIT
WORTEL

PEPSODENT
kuning
merah
jingga
Merah muda
jingga
asam
SABUN COLEK
merah
Merah muda
jingga
Merah jingga
Merah jingga
asam
SABUN PADAT
jingga
Merah muda
merah
Merah muda
jingga
Asam
SABUN CAIR
Merah jingga
jingga
jingga
Merah muda
jingga
asam
KAPUR SIRIH
merah
merah
jingga
merah
Merah muda
asam
AIR KAPUR
kuning
kuning
jingga
Merah ungu
jingga
asam
JERUK
kuning
Merah jingga
jingga
Merah muda
jingga
asam
SODA KUE
merah
merah
merah
merah
merah
asam
MINUMAN SODA
merah
merah
merah
merah
merah
asam
ALKOHOL 70%
jingga
kuning
jingga
merah
jingga
asam
SAMPO
Kuning hijau
Hijau biru
hijau
Hijau biru
Hijau biru
basa
AIR CUKA
merah
jingga
jingga
merah
kuning
asam
DETERJEN
Hijau
Hijau biru
hijau
hijau
biru
basa
GARAM DAPUR
kuning
jingga
merah
Merah jingga
merah
asam
AIR SUSU BASI
jingga
jingga
Merah muda
merah
jingga
asam


semoga bermanfaat bagi yang membaca artikel tentang percobaan indikator alami ini.. :)






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ABOUT KOREA BOY N GIRLBAND

19.56 |

Hello all, are you like boy n girlband korea? This name boy n girlband in Korea..check this out and happy in my blog.. 
♪     2NE1
The band consists of CL, Minzy, Dara, and Bom. The name 2NE1 combines the phrases "21st century" and "new evolution". First appearing in "Lollipop", a commercial campaign with Big Bang. Since then, the group has released two extended plays, 2NE1 and 2NE1 2nd Mini Album, and one studio album, To Anyone. Their first EP, 2NE1 spawned the number-one single "I Don't Care", which won them the "Song of the Year" award at the 2009 Mnet Asian Music Awards. Their follow-up singles, such as "Go Away", "Lonely" and "I Am The Best" were similarly successful, with "I Am the Best" winning 2NE1 their second "Song of the Year" award in 2011. In 2NE1's debut EP 2NE1, the group was noted to have a distinct, mixed style. While "Lollipop" was categorized as for pop, debut single "Fire" is predominately influenced by hip hop. "I Don't Care," however, was intended as a song with a reggae feel. "Go Away", the most successful promotional single from the album, is classified as dance.

♪     2PM
The current members are Junsu (now known as Minjun), Nichkhun, Taecyeon, Wooyoung, Junho and Chansung. The members of 2PM found their start under Korean musician Park Jin Young, who formed an eleven-member band known as One Day. Eventually the band was split into 2PM, and a similar but independent group known as 2AM. 2PM debuted with the song "10 Jeom Manjeome 10 Jeom" (10점 만점에 10점, lit. 10 Points Out of 10 Points), which showcased their acrobatic dance styles. They achieved their first Number 1 single with "Again & Again". Both singles featured on their first studio album, The First Album 1:59PM, released in 2009. The band went on to release another Korean album, known as Hands Up, in 2011. They made their Japanese debut later that year with Republic of 2PM.

♪     BigBang
Big Bang has grown to become one of the most successful Asian acts in the world. The group consists of G-Dragon, T.O.P, Taeyang, Daesung and Seungri. Big Bang is known for their unique urban-originated music and fashion style. From 2007 to 2008, Big Bang received many awards, including "Best Male Group", "Song of the Year", "Artist of the Year", and the Grand Award at the Seoul Music Awards.

♪     MBLAQ
MBLAQ (Korean: 엠블랙, Japanese: エムブラック; an acronym for Music Boys Live in Absolute Quality) is a South Korean quintet male vocal group created by South-Korean entertainer Rain under J.Tune Camp. The group consists of Seungho, G.O, Lee Joon, Thunder/Cheondung, and Mir. The group debuted on October 9, 2009, at Rain's Legend of Rainism concert. Initially debuting as a group more focused on dance and pop, MBLAQ have since experimented with different genres. "Oh Yeah" and "Y" were dance/pop tracks, "My Dream", "Last Luv" and "Rust" are ballad tracks, "Bang Bang Bang" is rock ballad, "Cry" is an R&B track, and "Stay" is a track infused with hip-hop, electronic and rock. With Rain being their mentor and major influence, he has either written, composed, produced and/or choreographed a few tracks for MBLAQ, including "Oh Yeah", "G.O.O.D Luv", and "Y". For the release of Just BLAQ and Y, MBLAQ focused heavily on their performance with strong choreography. With BLAQ Style, MBLAQ decided to focus more on the music and melody rather than the choreography.

♪     Miss A
Miss A (미쓰에이), commonly stylized as miss A, is a four member Chinese-Korean girl group based in South Korea. They were formed by JYP Entertainment and are managed by AQ Entertainment. The group consists of: Fei, Jia, Min and Suzy. Members Fei and Jia were selected in 2007 (Fei was scouted on her way to dance school, while Jia's school held auditions). Before their debut, members Fei and Jia appeared in 2PM's "My Color" music video. As the group had no official name they were widely known to the Chinese audiences as JYP Sisters or simply as "Sisters (시스터즈)" and was dubbed by JYP as the "Chinese Wonder Girls". However the group had gone through several changes during this period, most notably the exit of member Lim who was re-grouped to join the Wonder Girls, while two other girls decided to withdraw from the group.

♪     Shinee  
Shinee /ʃaɪniː/ SHE-nee; 샤이니; Japanese: シャイニー; stylized as SHINee) is a South Korean contemporary R&B boy group formed by SM Entertainment in 2008. The group consists of Onew, Jonghyun, Key, Minho, and Taemin. They made their debut on May 25, 2008 on SBS's Inkigayo with their single, "Replay" (Korean: 누난 너무 예뻐 (Replay)). Shinee is known for their fashion style, created by designer Ha Sang Baek (하상백), which features high-top sneakers, skinny jeans and colorful sweaters.Their style has created a fashion trend amongst students which the media dubbed the "SHINee Trend". The name of SHINee is combination of SHINE and ee is a means of accept the light.

♪       Girls Generation
Girls' Generation (Korean: 소녀시대; Sonyeo Shidae) is a nine-member South Korean pop girl group. hey are known in Japan as Shoujo Jidai (Japanese: 少女時代) and are referred to as SoShi (소시) or SNSD by their fans, both abbreviated forms of the group's Korean name. The group consists of Taeyeon, Jessica, Sunny, Tiffany, Hyoyeon, Yuri, Sooyoung, Yoona and Seohyun. Prior to their announcement, it was rumored that the group would be named "Super Girls" after their so-called male counterparts, Super Junior.

♪     SS501
SS501 (pronounced as Double-S Five-Oh-One or Deo Beul E Seu Oh Gong Il, Hangul 더블에스오공일) is a South Korean boy band formed under the management of DSP Media, formerly known as Daesung Entertainment and DSP Entertainment. The group debut in 2005 with five members: Kim Hyun Joong, Heo Young Saeng, Kim Kyu Jong, Park Jung Min and Kim Hyung Jun. The name of the band is a combination of letters and numbers that have special meaning. The first “S” stands for “Superstar". The second “S” is an abbreviation for "Singer". The combination of 5, 0, and 1 symbolizes "five members united as one forever". SS501's official fan club name is Triple S (means SSS : Super Star Supporters). Later in 2007, the group debuted in the Japanese market. A Japanese fans club was established with the name "Triple S Japan"; it officially debuted on 25 March 2007, when SS501 had their first official meeting with the club.

♪     Super Junior
Super Junior (Korean: 슈퍼주니어; Syupeo Junieo) is a popular South Korean idol group. Formed in 2005 by producer Lee Soo-man of SM Entertainment, the group comprised a total of thirteen members at its peak. Super Junior originally debuted with twelve members, consisting of leader Leeteuk, Heechul, Han Geng, Yesung, Kangin, Shindong, Sungmin, Eunhyuk, Siwon, Donghae, Ryeowook and Kibum. Kyuhyun joined the group in 2006. Super Junior's most well known for being a young, energetic, and the humor. The group also stated that having good teamwork is one of the key reasons for their success. Bonding and camaraderie among members has been seen since before the group's debut, when SM arranged all of them to stay in one apartment. Heechul has mentioned several times that if not for their members, he will leave Super Junior to pursue an acting career special.

♪     T-ara
T-ara (Korean: 티아라; Korean pronunciation: [t ʰ iara], Japanese: ティアラ) is a female singing group from South Korea formed by Core Contents Media in 2009. T-ara introduced a new member of their "Ryu Hwayoung" increased to 7 orang.Pada in 2011, T-ara signed a contract for $ 4,300,000 with management company J-ROCK for their Japanese debut, the highest of all the girl groups debuting in Japan. They are a major record label EMI Music Japan while management and marketing campaign under the J-ROCK

♪     TVXQ
TVXQ, which is an acronym for Tong Vfang Xien Qi (Chinese language: 东方 神 起), is a South Korean pop group formed in 2003 under the management of SM Entertainment. Writing their names are also modified to TVXQ!. In South Korea, they are known as Dong Bang Shin Ki (Korean: 동방신기), or often abbreviated as DBSK, and in Japan, they are known as Tohoshinki (Japanese: 东方 神 起). The meaning of their name in all 3 languages ​​means "Gods Rising from the East". TVXQ is one of Asia's most successful artists ever. TVXQ has been given the title as "Star of Asia" and the "King of Pop and the Hallyu Korean Wave" due to the success and enormous contribution to Korean pop

♪     Wonder Girls
Wonder Girls (Korean: 원더걸스) is a South Korean female singing group The producer they are singer / songwriter Park Jin-Young, and is under the management of JYP Entertainment.Kelima founding member of the Wonder Girls selected through auditions. they have scored three number one hit singles, "Tell Me", "So Hot" and "Nobody", and won two Daesang (awarded "Best Artist") in 2008. On submission of MNet KM Music Festival Awards, the Wonder Girls won three trophies, "Song of the Year 2008", "Best Music Bideo" for "Nobody", and "Best Female Group." Golden Disk Awards 2008 also won their digital sales figures outstanding. At the Seoul Music Awards-18, Wonder Girls won top honors Daesang (Best Artist) for the song "Nobody" along with two other awards.

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