Tujuan
Menguji daya hantar listrik beberapa larutan serta mengamati gejala berlangsungnya hantaran arus listrik.
Alat dan Bahan
*Alat
Alat uji elektrolit 1 set
Gelas Kimia 8 buah
*Bahan
Bahan |
Jumlah
|
Larutan CH3COOH 1M
Larutan NH4OH 1M Larutan NaOH 1M Larutan HCl 1M Larutan NaCl 1M Larutan gula 10% Larutan urea 10% Etanol (alkohol) 70 % |
50 mL
50 mL 50 mL 50 mL 50 mL 50 mL 50 mL 50 mL |
Langkah Kerja
Keterangan :
1. batu baterai
2. kabel penghubung
3. bola lampu
4. elektroda karbon
5. elektroda karbon
6. larutan yang diuji
7. gelas kimia
2. kabel penghubung
3. bola lampu
4. elektroda karbon
5. elektroda karbon
6. larutan yang diuji
7. gelas kimia
- Alat uji elektrolit disusun seperti gambar diatas.
- Masukkan setiap larutan sebanyak 50 mL ke dalam gelas kimia.
- Lakukan uji daya hantar listriknya. Jika memungkinkan, sebaiknya percobaan untuk beberapa larutan dilakukan bersamaan sehingga dapat diamati dan dibandingkan gejala hantaran tang terjadi.
- Amati perubahan yang terjadi! Catat sebagai data pengamatan!
Data Pengamatan
No
|
Bahan Uji
|
Bola Lampu
(Menyala/Tidak) |
Gelembung Gas
(Ada/Tidak Ada) |
Keterangan
|
1
|
Larutan HCl 1M
| |||
2
|
Larutan CH3COOH 1M
| |||
3
|
Larutan NH4OH 1M
| |||
4
|
Larutan NaOH 1M
| |||
5
|
Larutan NaCl 1M
| |||
6
|
Larutan gula 10%
| |||
7
|
Larutan urea 10%
| |||
8
|
Etanol (alkohol) 70%
|
Pertanyaan
- Berdasarkan pengamatan Anda, sebutkan gejala berlangsungnya hantaran arus listrik!
- Kelompokkan bahan uji tersebut ke dalam larutan yang dapat menghantarkan arus listrik (larutan elektrolit) dan larutan yang tidak dapat menghantarkan arus listrik (larutan non elektrolit)!
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