Page 66 - Hybrid PBD 2022 Tg 4 - Kimia

Kimia Tingkatan 4 Bab 7

Keputusan / Result:

Eksperimen
Experiment 1 2 3 4 5
Isi padu larutan stok natrium tiosulfat 0.2 mol dm (cm ) 45.0 40.0 30.0 20.0 10.0
–3
3
–3
Volume of 0.2 mol dm sodium thiosulphate stock solution (cm )
3
Isi padu air suling (cm ) 0.0 5.0 15.0 25.0 35.0
3
Volume of distilled water (cm )
3
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Isi padu H SO (cm )
3
2
4
Volume of H SO (cm ) 5.0 5.0 5.0 5.0 5.0
3
2
4
Kepekatan larutan natrium tiosulfat (mol dm )
–3
Concentration of sodium thiosulphate solution (mol dm ) 0.2 0.16 0.12 0.08 0.04
–3
Masa yang diambil (s) 19 23 33 48 115
Time taken (s)
1 –1 1 –1
masa (s ) / time (s ) 0.0526 0.0435 0.0303 0.0208 0.0087
Mentafsir data / Interpreting data:
1
(a) (i) Plotkan graf kepekatan melawan .
masa
1
Plot the graph of concentration against .
time
–3
Kepekatan larutan natrium tiosulfat (mol dm )
Concentration of sodium thiosulphate solution (mol dm )
–3
0.25

0.2

0.15

0.1

0.05 1
–1
(s )
masa
0 1
0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05 0.055 0.06 (s )
–1
time
1
(ii) Berdasarkan graf anda, nyatakan hubungan antara kepekatan larutan natrium tiosulfat dengan masa .
1
Based on your graph, state the relationship between concentration of sodium thiosulphate solution with .
1 time
Semakin tinggi kepekatan larutan natrium tiosulfat, semakin tinggi .
masa
1
The higher the concentration of sodium thiosulphate solution, the higher .
time

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07 Bab 7.indd 173 10/29/21 5:18 PM