.Kimia organik merupakan mata pelajaran yang berisi tentang struktur, sifat,komposisi, reaksi, dan sintesis senyawa organik.Hidrokarbon adalah senyawa organik yang tersusun dari karbon atom dan hidrogen. Berdasarkan penyusunnya dalam struktur hidrokarbon dibedakan menjadi hidrokarbon alifatik, alisiklik,dan aromatik.Hidrokarbon alifatik adalah senyawa organik yang tersusun dari karbon dan hidrogen dalam rantai terbuka. Hidrokarbon alifatik dapat berupa alifatik jenuh dan tidak jenuh, alifatik jenuh apabila didalam struktur molekulnya hanya mempunyai ikatan tunggal, sedangkan alifatik tidak jenuh apabila didalam strukturnya terdapat ikatan rangkap.Hidrokarbon alisiklik adalah senyawa organik yang tersusun dalam suatu cincin yang memiliki ketidak jenuhan yang rantai tertutup senyawa aromatik merupakan hidrokarbon yang tersusun dalam cincin yang memiliki aroma atau bau yang khas.Senyawa hidrokarbon alifatik dan alisiklik yaitu alkana, sikloalkana, alkena dan alkuna.a. Untuk mengetahui sifat fisika,kelarutan dan densitas dari beberapa senyawa hidrokarbon.
b. Untuk mempelajari dan membandingkan reaksi-reaksi kimia pada alkana,alkena,dan senyawa aromatik
Excercises of Unit 5 Past Simple (I did)
5.1 Yesterday was a typical working day for Laura. Write what she did or didn’t do yesterday.
1. She got up at 7 o’clock.
2. She had a big breakfast.
3. She walked to work.
4. It took her about half an hour to get to work.
5. She started work at 8.45.
6. She didn't have lunch.
7. She finished work at 5 o’clock.
8. She was tired when she got home.
9. She cooked a meal yesterday evening.
10. She didn't go out yesterday evening.
11. She went to bed at 11 o’clock.
12. She slept well last night.
5.2 Complete the sentences using the following verbs in the correct form :
Buy catch cost fall hurt sell spend teach throw write
1. Mozart wrote more than 600 pieces of music.
2. ‘How did you learn to drive?’ My father taught me.’
3. We couldn’t afford to keep our car, so we sold it.
4. Dave fell down the stairs this morning and hurt his leg.
5. Jim threw the ball to Sue, who caught it.
6. Ann spent a lot of money yesterday. She bought a dress which cost £ 100.
5.3 You ask james about his holiday. Write your questions.
Hi. How are things?
Fine, thanks. I’ve Just had a great holiday.
1. Where did you go?
To the U.S We went on a trip from San Fransisco to Denver.
2. How did you travel? By car?
Yes, we hired a car in San Fransisco.
3. It’s a long way to drive. How long did it take?
Two weeks.
4. Where did you stay? In hotels?
Yes, small hotels or motels.
5. Did you enjoy it?
Yes, but is was very hot – sometimes too hot.
6. Did you see the Grand Canyon?
Of course. It was wonderful.
5.4 Complete the sentences, put the verb into the correct form, positive or negative.
1. It was warm, so I took off my coat. (take)
2. The film wasn't very good. I didn't enjoy it very much. (enjoy)
3. I knew Sarah was very busy, so I didn't disturb her. (disturb)
4. I was very tired, so I left the party early. (leave)
5. The bed was very uncomfortable. I didn't sleep very well. (sleep)
6. The window was open and a bird flew into the room. (fly)
7. The hotel wasn't very expensive. It didn't cost very much. (cost)
8. I was in a hurry, so I didn't have time to phone you. (have)
9. It was hard carrying the bags. They were very heavy. (be)
Alya Dwi Arianty
Pendidikan Kimia UNIMUS 22
.Kimia organik merupakan mata pelajaran yang berisi tentang struktur, sifat,komposisi, reaksi, dan sintesis senyawa organik.Hidrokarbon adalah senyawa organik yang tersusun dari karbon atom dan hidrogen. Berdasarkan penyusunnya dalam struktur hidrokarbon dibedakan menjadi hidrokarbon alifatik, alisiklik,dan aromatik.Hidrokarbon alifatik adalah senyawa organik yang tersusun dari karbon dan hidrogen dalam rantai terbuka. Hidrokarbon alifatik dapat berupa alifatik jenuh dan tidak jenuh, alifatik jenuh apabila didalam struktur molekulnya hanya mempunyai ikatan tunggal, sedangkan alifatik tidak jenuh apabila didalam strukturnya terdapat ikatan rangkap.Hidrokarbon alisiklik adalah senyawa organik yang tersusun dalam suatu cincin yang memiliki ketidak jenuhan yang rantai tertutup senyawa aromatik merupakan hidrokarbon yang tersusun dalam cincin yang memiliki aroma atau bau yang khas.Senyawa hidrokarbon alifatik dan alisiklik yaitu alkana, sikloalkana, alkena dan alkuna.a. Untuk mengetahui sifat fisika,kelarutan dan densitas dari beberapa senyawa hidrokarbon.
b. Untuk mempelajari dan membandingkan reaksi-reaksi kimia pada alkana,alkena,dan senyawa aromatik
Excercises of Unit 5 Past Simple (I did)
5.1 Yesterday was a typical working day for Laura. Write what she did or didn’t do yesterday.
1. She got up at 7 o’clock.
2. She had a big breakfast.
3. She walked to work.
4. It took her about half an hour to get to work.
5. She started work at 8.45.
6. She didn't have lunch.
7. She finished work at 5 o’clock.
8. She was tired when she got home.
9. She cooked a meal yesterday evening.
10. She didn't go out yesterday evening.
11. She went to bed at 11 o’clock.
12. She slept well last night.
5.2 Complete the sentences using the following verbs in the correct form :
Buy catch cost fall hurt sell spend teach throw write
1. Mozart wrote more than 600 pieces of music.
2. ‘How did you learn to drive?’ My father taught me.’
3. We couldn’t afford to keep our car, so we sold it.
4. Dave fell down the stairs this morning and hurt his leg.
5. Jim threw the ball to Sue, who caught it.
6. Ann spent a lot of money yesterday. She bought a dress which cost £ 100.
5.3 You ask james about his holiday. Write your questions.
Hi. How are things?
Fine, thanks. I’ve Just had a great holiday.
1. Where did you go?
To the U.S We went on a trip from San Fransisco to Denver.
2. How did you travel? By car?
Yes, we hired a car in San Fransisco.
3. It’s a long way to drive. How long did it take?
Two weeks.
4. Where did you stay? In hotels?
Yes, small hotels or motels.
5. Did you enjoy it?
Yes, but is was very hot – sometimes too hot.
6. Did you see the Grand Canyon?
Of course. It was wonderful.
5.4 Complete the sentences, put the verb into the correct form, positive or negative.
1. It was warm, so I took off my coat. (take)
2. The film wasn't very good. I didn't enjoy it very much. (enjoy)
3. I knew Sarah was very busy, so I didn't disturb her. (disturb)
4. I was very tired, so I left the party early. (leave)
5. The bed was very uncomfortable. I didn't sleep very well. (sleep)
6. The window was open and a bird flew into the room. (fly)
7. The hotel wasn't very expensive. It didn't cost very much. (cost)
8. I was in a hurry, so I didn't have time to phone you. (have)
9. It was hard carrying the bags. They were very heavy. (be)
Alya Dwi Arianty
Pendidikan Kimia UNIMUS 22
1. SENYAWA
AROMATIK
AROMATISASI
DAN ATURAN
HUCKEL
semua ikatan C-C
dalam benzen
panjangnya sama,
tak mengandung
tiga ikatan
rangkap yang
pendek dan tiga
ikatan tunggal
yang panjang.
Semua ikatan C-C
mempunyai
panjang iaktan
1,40A, ikatan
antara ikatan
tunggal C-C (1,54
A) dan antara
ikatan rangkap
C=C (1,34A).
Suatu senyawa
aromatik mengandung
orbital terdelokalisasi
delokal yang berbentuk
cincin. Banyaknya
elektron p yang terlibat
dalam orbital delokal
harus tunduk pada
rumus Huckel:
Elektron p = 4 n + 2
Dengan n = 0, 1, 2, 3,…
Contoh : benzena dan
naftalena
PENGERTIAN
TATA
NAMA
IKATAN
senyawa aromatik adalah
benzena atau senyawa yang
sifat kimianya menyerupai
benzena
Sifat Kimia:
1. Bersifat
karsinogenik
(racun)
2. Merupakan
senyawa nonpolar
3. Tidak begitu
reaktif, tapi
mudah terbakar
dengan
menghasilkan
banyak jelaga
Pandangan
Teori
Resonansi
Sifat Fisik:
1. Zat cair tidak
berwarna
2. Memiliki bau
yang khas
3. Mudah
menguap
4. Tidak larut
dalam pelarut
polar seperti air
air, tetapi larut
dalam pelarut
yang kurang polar
atau nonpolar,
seperti eter dan
tetraklorometana
SIFAT FISIK
DAN SIFAT
KIMIA
REAKSI
SUBSTITUSI
KEGUNAAN
SENYAWA
AROMATIK
Kegunaan
benzena yang
terpenting adalah
sebagai pelarut
dan sebagai
bahan baku
pembuatan
senyawa-
senyawa aromatik
lainnya yang
merupakan
turunan benzena.
Masing-masing
dari senyawa
turunan benzena
tersebut memiliki
kegunaan yang
beragam bagi
kehidupan
manusia.
Alya Dwi Arianty|B2C022003|Pendidikan Kimia