KIMIA F4 K3 2014 PPDJJ (soalan)
SULIT
4541/3
Answer all the questions
Jawab semua soalan
1. A student carried out an experimeent to determine the empirical formula of magne
nesium
oxide. The steps and set-up of app
pparatus of the experiment are shown in diagram below.
Seorang pelajar telah menjalanka
kan satu eksperimen untuk menentukan formula em
empirik
magnesium oksida. Langkah dan
n ssusunan radas eksperimen ditunjukkan dalam ra
rajah
di bawah.
Step
Langkah
Set-up of apparatus
Susunan radas
1. Crucible and lid are weighed
Mangkuk pijar dan penutup ditimbang
d
2. Crucible, lid and magnesium ribbon
r
are
weighed.
Mangkuk pijar, penutup dan pita
p
magnesium ditimbang
3. Magnesium ribbon is heated uuntil the
reaction is complete.
Pita magnesium dipanaskann hingga
h
tindak balas lengkap
4. Crucible, lid and magnesium oxide
o
are
weighed when cooled.
Mangkuk pijar, penutup dan
g setelah
s
magnesium oksida ditimbang
disejukkan.
4541/3
1
[liha
[lihat sebelah
SULIT
For
Examiner’s
use
SULIT
a)
4541/3
Complete the table below to two decimal places to record the readings in the
experiment.
Lengkapkan jadual di bawah kepada dua tempat perpuluhan untuk merekodkan semua
bacaan dalam eksperimen.
Description
Penerangan
For
Examiner’s
use
Mass / g
Jisim / g
The crucible and lid
Mangkuk pijar dan penutup
The crucible, lid and magnesium ribbon
Mangkuk pijar, penutup dan pita
magnesium
The crucible, lid and magnesium oxide
when cooled
Mangkuk pijar, penutup dan
magnesium oksida setelah disejukkan
1(a)
3
[3 marks]
[3 markah]
b)
Complete the following table by stating the observations and related inferences
obtained from the experiment.
Lengkapkan jadual berikut dengan menyatakan pemerhatian dan inferens yang
diperolehi daripada eksperimen.
Observation
Pemerhatian
Inferences
Inferens
i)
i)
............................................................
.....................................................
............................................................
ii)
.....................................................
ii)
............................................................
.....................................................
............................................................
.....................................................
1(b)
3
[3 marks]
[3 markah]
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2
[lihat sebelah
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SULIT
c)
i)
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For
Examiner’s
use
What is the mass of magnesium that has been used?
Berapakah jisim magnesium yang telah digunakan?
1(c)(i)
[3 marks]
[3 markah]
ii)
3
What is the mass of oxygen which reacted with magnesium?
Berapakah jisim oksigen yang telah bertindak balas dengan magnesium?
1(c)(ii)
[3 marks]
[3 markah]
iii)
3
Determine the empirical formula of magnesium oxide.
Tentukan formula empirik magnesium oksida
Use the information that the relative atomic mass, Mg = 24, O = 16
Gunakan maklumat jisim atom relatif, Mg = 24, O = 16
1(c)(iii)
[3 marks]
[3 markah]
4541/3
3
[lihat sebelah
SULIT
3
SULIT
4541/3
For
2. All elements in group 1 of The Periodic Table of Element exhibit similar chemical
properties but the reactivity is different. Diagram below shows the set-up of apparatus for an Examiner’s
use
experiment to compare the reactivity of group 1 metals towards their reaction with oxygen.
Semua unsur dalam kumpulan satu Jadual Berkala Unsur menujukkan sifat kimia yang
sama tetapi kereaktifan yang berbeza. Rajah di bawah menunjukkan susunan radas satu
eksperimen untuk membandingkan kereaktifan logam unsur kumpulan satu dalam tindak
balas mereka dengan oksigen.
Set up of apparatus
Susunan radas
Observation on the metal
Pemerhatian ke atas logam
..................................................................................
..................................................................................
..................................................................................
..................................................................................
...................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
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4
[lihat sebelah
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SULIT
a)
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Look at the ignition or glowing in each set up of apparatus in diagram given.
Complete the observation for the reaction.
Perhatikan kepada nyalaan atau baraan di setiap susunan radas dalam rajah yang
diberikan, lengkapkan pemerhatian untuk setiap tindak balas.
For
Examiner’s
use
2(a)
[3 marks]
[3 markah]
3
b) Complete the Table below based on the experiment.
Lengkapkan jadual di bawah berdasarkan kepada eksperimen.
Name of variables
Nama pembolehubah
Action to be taken
Tindakan yang di ambil
i) Manipulated Variable:
Pembolehubah dimanipulasi:
The way to manipulate variable:
Cara memanipulasikan pembolehubah
............................................................
............................................................
...........................................................
...........................................................
ii) Responding variable:
Pembolehubah bergerak balas:
What to observe in the responding variable:
Apa yang diperhatikan pada pembolehubah
bergerak balas:
.......................................................
............................................................
......................................................
iii) Constant variable:
Pembolehubah dimalarkan
The way to maintain the constant variable:
Cara mengawal pembolehubah malar:
...........................................................
..............................................................
............................................................
.............................................................
2(b)
[6 marks]
[6 markah]
6
4541/3
5
[lihat sebelah
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SULIT
c)
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For
Examiner’s
use
State the hypothesis for the experiment.
Nyatakan hipotesis bagi eksperimen ini.
......................................................................................................................................
2(c)
......................................................................................................................................
3
[3 marks]
[3 markah]
d) Based on the observation for the reaction between sodium and oxygen gas, state the
inference.
Berdasarkan pemerhatian tindakbalas antara natrium dengan gas oksigen, nyatakan
satu inferen
......................................................................................................................................
2(d)
......................................................................................................................................
3
[3 marks]
[3 markah]
e)
Arrange lithium, sodium and potassium in ascending order of reactivity of group 1
metals towards oxygen.
Susunkan litium, natrium dan kalium mengikut susunan secara menaik berdasarkan
kereaktifan logam unsur kumpulan 1 terhadap oksigen.
Ascending order of reactivity of group 1 metal towards oxygen
Susunan menaik kereaktifan logam unsur kumpulan 1 terhadap oksigen
2(e)
[3 marks]
[3 markah]
3
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6
[lihat sebelah
SULIT
SULIT
3.
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“When the temperature increases, the rate of diffusion in liquid also increases”
By using the suitable apparatus and materials that are required for the investigation, plan
an experiment to prove the statement above
For
Examiner’s
use
“Apabila suhu meningkat, kadar resapan di dalam cecair turut meningkat”
Dengan menggunakan radas dan bahan yang sesuai untuk kajian tersebut, rancang satu
eksperimen untuk membuktikan pernyataan di atas.
a)
Problem statement
Pernyataan masalah
b)
Hypothesis
Hipotesis
c)
All the variables
Semua pembolehubah yang terlibat
d)
List of materials and apparatus
Senarai bahan dan radas
e)
Procedures
Prosedur
f)
Tabulation of data
Penjadualan data
3.
[17 marks]
[17 markah]
END OF QUESTION PAPER
KERTAS SOALAN TAMAT
4541/3
7
[lihat sebelah
SULIT
17
SULIT
4541/3
INFORMATION FOR CANDIDATES
MAKLUMAN KEPADA CALON
1.
This question paper consists of three questions. Question 1, Question 2 and Question
3.
Kertas soalan ini mengandungi tiga soalan: Soalan 1, Soalan 2 dan Soalan 3.
2.
Answer all questions. Write your s answer for Question 1 and Question 2 in the spaces
provided in this question paper.
Jawab semua soalan. Tuliskan jawapan bagi Soalan 1 dan Soalan 2 pada ruang yang
disediakan dalam kertas soalan.
3.
Write your answers for question 3 on the addition answer sheets provided by
invigilators. You may use equations, diagrams, tables, graph and other methods to
explain your answer.
Tulis jawapan anda bagi Soalan 3 di dalam helaian tambahan yang dibekalkan oleh
pengawas peperiksaan.Anda boleh menggunakan persamaan, gambar rajah, jadual,
graf dan cara lain yang sesuai untuk menjelaskan jawapan anda.
4.
The diagram in the questions is not drawn to scale unless stated.
Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.
5.
The marks allocated for each question or sub-part of a question is shown in brackets.
Markah yang diperuntukkan bagi setiap jawapan atau ceraian soalan ditunjukkan
dalam kurungan.
6.
Show your working, it may help you to get marks.
Tunjukkan kerja mengira. Ini membantu anda mendapatkan markah,
7.
If you wish to change your answer, cross out the answer that you have done. Then write
down the new answer.
Sekiranya anda hendak menukar jawapan, batalkan jawapan yang telah
dibuat,kemudian tulis jawapan yang baru.
8.
You may use a non-programmable scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik yang tidak diprogramkan.
9.
Tie the addition answer sheets together with this question paper and hand in at the end
of the examination.
Ikat semua kertas jawapan anda bersama-sama soalan ini di akhir peperiksaan.
Marks awarded:
Mark
4541/3
Description
3
Excellent : The best response
2
Satisfactory : An average response
1
Weak : An inaccurate response
0
No response or wrong response
8
[lihat sebelah
SULIT
4541/3
Answer all the questions
Jawab semua soalan
1. A student carried out an experimeent to determine the empirical formula of magne
nesium
oxide. The steps and set-up of app
pparatus of the experiment are shown in diagram below.
Seorang pelajar telah menjalanka
kan satu eksperimen untuk menentukan formula em
empirik
magnesium oksida. Langkah dan
n ssusunan radas eksperimen ditunjukkan dalam ra
rajah
di bawah.
Step
Langkah
Set-up of apparatus
Susunan radas
1. Crucible and lid are weighed
Mangkuk pijar dan penutup ditimbang
d
2. Crucible, lid and magnesium ribbon
r
are
weighed.
Mangkuk pijar, penutup dan pita
p
magnesium ditimbang
3. Magnesium ribbon is heated uuntil the
reaction is complete.
Pita magnesium dipanaskann hingga
h
tindak balas lengkap
4. Crucible, lid and magnesium oxide
o
are
weighed when cooled.
Mangkuk pijar, penutup dan
g setelah
s
magnesium oksida ditimbang
disejukkan.
4541/3
1
[liha
[lihat sebelah
SULIT
For
Examiner’s
use
SULIT
a)
4541/3
Complete the table below to two decimal places to record the readings in the
experiment.
Lengkapkan jadual di bawah kepada dua tempat perpuluhan untuk merekodkan semua
bacaan dalam eksperimen.
Description
Penerangan
For
Examiner’s
use
Mass / g
Jisim / g
The crucible and lid
Mangkuk pijar dan penutup
The crucible, lid and magnesium ribbon
Mangkuk pijar, penutup dan pita
magnesium
The crucible, lid and magnesium oxide
when cooled
Mangkuk pijar, penutup dan
magnesium oksida setelah disejukkan
1(a)
3
[3 marks]
[3 markah]
b)
Complete the following table by stating the observations and related inferences
obtained from the experiment.
Lengkapkan jadual berikut dengan menyatakan pemerhatian dan inferens yang
diperolehi daripada eksperimen.
Observation
Pemerhatian
Inferences
Inferens
i)
i)
............................................................
.....................................................
............................................................
ii)
.....................................................
ii)
............................................................
.....................................................
............................................................
.....................................................
1(b)
3
[3 marks]
[3 markah]
4541/3
2
[lihat sebelah
SULIT
SULIT
c)
i)
4541/3
For
Examiner’s
use
What is the mass of magnesium that has been used?
Berapakah jisim magnesium yang telah digunakan?
1(c)(i)
[3 marks]
[3 markah]
ii)
3
What is the mass of oxygen which reacted with magnesium?
Berapakah jisim oksigen yang telah bertindak balas dengan magnesium?
1(c)(ii)
[3 marks]
[3 markah]
iii)
3
Determine the empirical formula of magnesium oxide.
Tentukan formula empirik magnesium oksida
Use the information that the relative atomic mass, Mg = 24, O = 16
Gunakan maklumat jisim atom relatif, Mg = 24, O = 16
1(c)(iii)
[3 marks]
[3 markah]
4541/3
3
[lihat sebelah
SULIT
3
SULIT
4541/3
For
2. All elements in group 1 of The Periodic Table of Element exhibit similar chemical
properties but the reactivity is different. Diagram below shows the set-up of apparatus for an Examiner’s
use
experiment to compare the reactivity of group 1 metals towards their reaction with oxygen.
Semua unsur dalam kumpulan satu Jadual Berkala Unsur menujukkan sifat kimia yang
sama tetapi kereaktifan yang berbeza. Rajah di bawah menunjukkan susunan radas satu
eksperimen untuk membandingkan kereaktifan logam unsur kumpulan satu dalam tindak
balas mereka dengan oksigen.
Set up of apparatus
Susunan radas
Observation on the metal
Pemerhatian ke atas logam
..................................................................................
..................................................................................
..................................................................................
..................................................................................
...................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
..................................................................................
4541/3
4
[lihat sebelah
SULIT
SULIT
a)
4541/3
Look at the ignition or glowing in each set up of apparatus in diagram given.
Complete the observation for the reaction.
Perhatikan kepada nyalaan atau baraan di setiap susunan radas dalam rajah yang
diberikan, lengkapkan pemerhatian untuk setiap tindak balas.
For
Examiner’s
use
2(a)
[3 marks]
[3 markah]
3
b) Complete the Table below based on the experiment.
Lengkapkan jadual di bawah berdasarkan kepada eksperimen.
Name of variables
Nama pembolehubah
Action to be taken
Tindakan yang di ambil
i) Manipulated Variable:
Pembolehubah dimanipulasi:
The way to manipulate variable:
Cara memanipulasikan pembolehubah
............................................................
............................................................
...........................................................
...........................................................
ii) Responding variable:
Pembolehubah bergerak balas:
What to observe in the responding variable:
Apa yang diperhatikan pada pembolehubah
bergerak balas:
.......................................................
............................................................
......................................................
iii) Constant variable:
Pembolehubah dimalarkan
The way to maintain the constant variable:
Cara mengawal pembolehubah malar:
...........................................................
..............................................................
............................................................
.............................................................
2(b)
[6 marks]
[6 markah]
6
4541/3
5
[lihat sebelah
SULIT
SULIT
c)
4541/3
For
Examiner’s
use
State the hypothesis for the experiment.
Nyatakan hipotesis bagi eksperimen ini.
......................................................................................................................................
2(c)
......................................................................................................................................
3
[3 marks]
[3 markah]
d) Based on the observation for the reaction between sodium and oxygen gas, state the
inference.
Berdasarkan pemerhatian tindakbalas antara natrium dengan gas oksigen, nyatakan
satu inferen
......................................................................................................................................
2(d)
......................................................................................................................................
3
[3 marks]
[3 markah]
e)
Arrange lithium, sodium and potassium in ascending order of reactivity of group 1
metals towards oxygen.
Susunkan litium, natrium dan kalium mengikut susunan secara menaik berdasarkan
kereaktifan logam unsur kumpulan 1 terhadap oksigen.
Ascending order of reactivity of group 1 metal towards oxygen
Susunan menaik kereaktifan logam unsur kumpulan 1 terhadap oksigen
2(e)
[3 marks]
[3 markah]
3
4541/3
6
[lihat sebelah
SULIT
SULIT
3.
4541/3
“When the temperature increases, the rate of diffusion in liquid also increases”
By using the suitable apparatus and materials that are required for the investigation, plan
an experiment to prove the statement above
For
Examiner’s
use
“Apabila suhu meningkat, kadar resapan di dalam cecair turut meningkat”
Dengan menggunakan radas dan bahan yang sesuai untuk kajian tersebut, rancang satu
eksperimen untuk membuktikan pernyataan di atas.
a)
Problem statement
Pernyataan masalah
b)
Hypothesis
Hipotesis
c)
All the variables
Semua pembolehubah yang terlibat
d)
List of materials and apparatus
Senarai bahan dan radas
e)
Procedures
Prosedur
f)
Tabulation of data
Penjadualan data
3.
[17 marks]
[17 markah]
END OF QUESTION PAPER
KERTAS SOALAN TAMAT
4541/3
7
[lihat sebelah
SULIT
17
SULIT
4541/3
INFORMATION FOR CANDIDATES
MAKLUMAN KEPADA CALON
1.
This question paper consists of three questions. Question 1, Question 2 and Question
3.
Kertas soalan ini mengandungi tiga soalan: Soalan 1, Soalan 2 dan Soalan 3.
2.
Answer all questions. Write your s answer for Question 1 and Question 2 in the spaces
provided in this question paper.
Jawab semua soalan. Tuliskan jawapan bagi Soalan 1 dan Soalan 2 pada ruang yang
disediakan dalam kertas soalan.
3.
Write your answers for question 3 on the addition answer sheets provided by
invigilators. You may use equations, diagrams, tables, graph and other methods to
explain your answer.
Tulis jawapan anda bagi Soalan 3 di dalam helaian tambahan yang dibekalkan oleh
pengawas peperiksaan.Anda boleh menggunakan persamaan, gambar rajah, jadual,
graf dan cara lain yang sesuai untuk menjelaskan jawapan anda.
4.
The diagram in the questions is not drawn to scale unless stated.
Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali dinyatakan.
5.
The marks allocated for each question or sub-part of a question is shown in brackets.
Markah yang diperuntukkan bagi setiap jawapan atau ceraian soalan ditunjukkan
dalam kurungan.
6.
Show your working, it may help you to get marks.
Tunjukkan kerja mengira. Ini membantu anda mendapatkan markah,
7.
If you wish to change your answer, cross out the answer that you have done. Then write
down the new answer.
Sekiranya anda hendak menukar jawapan, batalkan jawapan yang telah
dibuat,kemudian tulis jawapan yang baru.
8.
You may use a non-programmable scientific calculator.
Anda dibenarkan menggunakan kalkulator saintifik yang tidak diprogramkan.
9.
Tie the addition answer sheets together with this question paper and hand in at the end
of the examination.
Ikat semua kertas jawapan anda bersama-sama soalan ini di akhir peperiksaan.
Marks awarded:
Mark
4541/3
Description
3
Excellent : The best response
2
Satisfactory : An average response
1
Weak : An inaccurate response
0
No response or wrong response
8
[lihat sebelah
SULIT