Page 6 - Modul A+1 Kimia Tingkatan 4

Eksperimen 1.1

Tujuan/ Aim: BAB 1
Eksperimen Wajib To study the effect of temperature on the solubility of salt in water.
Mengkaji kesan suhu terhadap keterlarutan garam di dalam air.
Eksperimen
Pernyataan masalah/ Problem statement: TP 3
Adakah suhu air mempengaruhi keterlarutan garam di dalam air?
Does the temperature of water affect the solubility of salt in water?

Hipotesis/ Hypothesis: TP 3
Semakin tinggi suhu air, keterlarutan garam di dalam air bertambah.

The higher the temperature of water, the solubility of salt in water increases.
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Pemboleh ubah/ Variables: TP 3
(a) dimanipulasikan/ manipulated: Suhu air/ Temperature of water
(b) bergerak balas/ responding: Keterlarutan garam di dalam air/ Solubility of salt in water
(c) dimalarkan/ fixed: Isi padu air, jisim garam, masa/ Volume of water, mass of salt, time
Bahan/ Materials:
Air suling, garam/ Distilled water, salt
Radas/ Apparatus:
Bikar 150 cm , silinder penyukat 100 cm , termometer, penimbang elektronik, rod kaca, penunu Bunsen, jam randik,
3
3
kasa dawai dan tungku kaki tiga
150 cm beaker, 100 cm measuring cylinder, thermometer, electronic scale, glass rod, Bunsen burner, stopwatch, wire gauze and tripod
3
3
stand
Prosedur/ Procedure:
1. 50 cm air suling pada suhu 10 °C disukat dengan menggunakan silinder penyukat dan dimasukkan ke dalam
3
bikar.
50 cm of distilled water at the temperature 10 °C is measured with a measuring cylinder and pour into a beaker.
3
2. 10 g garam ditambah ke dalam bikar dan larutan dikacau selama 2 minit dengan menggunakan rod kaca.
10 g of salt is added into the beaker and the solution is stirred with a glass rod for 2 minutes.
3. Keterlarutan garam di dalam bikar diperhatikan.
The solubility of salt in the beaker is observed.
4. Langkah 1 hingga 3 diulang dengan menggunakan air suling yang bersuhu 30 °C dan 80 °C.
Steps 1 to 3 are repeated using distilled water at the temperature of 30 °C and 80 °C.
5. Pemerhatian direkodkan dalam jadual yang disediakan./ Observations are recorded in a table provided.
Keputusan/ Results: TP 2
Jadual/Table 1.3

Suhu (°C) 10 30 80
Temperature (°C)
Banyak garam masih tidak Hampir semua garam Semua garam larut dengan
Pemerhatian larut di dalam air. larut di dalam air. cepat.
Observation Plenty of salt still does not Almost all salt dissolves All salt dissolves quickly.
dissolve in water. in the water.

Mentafsir data/ Interpreting data: TP 4
1. Apakah hubungan antara suhu dengan keterlarutan garam di dalam air?
What is the relationship between temperature and the solubility of salt in water?
Apabila suhu air meningkat, keterlarutan garam di dalam air bertambah.
When the temperature of water increases, the solubility of salt in water increases.

2. Apakah modifikasi yang boleh dilakukan supaya garam boleh larut di dalam air bersuhu 30.0 °C dengan lebih cepat?
What modification can be done so that the salt can dissolve in water at the temperature of 30.0 °C more quickly?
Tambah isi padu air/ Increase the volume of water
Kesimpulan/ Conclusion: TP 5
Hipotesis diterima. Semakin tinggi suhu air, keterlarutan garam di dalam air bertambah.
Hypothesis is accepted. he higher the temperature of water, the solubility of salt in water increases.

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