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KERTAS MODEL SPM / SPM MODEL PAPER

Kimia/Chemistry 4541/2
Kertas 2/Paper 2 2 jam 30 minit/2 hours 30 minutes

Bahagian A / Section A
[60 markah / 60 marks]
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Jawab semua soalan. / Answer all questions.

1. Sekumpulan murid menjalankan satu eksperimen untuk menyiasat kesan suhu pada keterlarutan garam dalam air.
40 g garam natrium klorida dilarutkan di dalam 50 cm air suling pada suhu bilik. Eksperimen diulangi pada suhu
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yang berlainan.
A group of pupils carried out an experiment to investigate the effect of temperature on the solubility of salt in water.
40 g of sodium chloride salt was dissolved in 50 cm of distilled water at room temperature. The experiment was
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repeated at different temperatures.
Jadual 1 menunjukkan keputusan eksperimen ini.
Table 1 shows the result of the experiment.
Jadual 1 / Table 1
Suhu (°C) Pemerhatian
Temperature (°C) Observation
Suhu bilik Garam larut sedikit
Room temperature Salt dissolve a little
50 Semua garam larut tetapi perlahan
All the salt dissolve but slowly
80 Semua garam larut dengan cepat
All the salt dissolves quickly

Berdasarkan Jadual 1:
Based on Table 1:
(a) Nyatakan:
State the:
Pemboleh ubah manipulasi:
Manipulated variable:
Pemboleh ubah gerak balas:
Responding variable:
Pemboleh ubah malar:
Constant variable:
[3 markah / 3 marks]
(b) State the hypothesis for this experiment.
Nyatakan hipotesis untuk eksperimen ini.

[2 markah / 2 marks]

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