Chemistry SPM 2010 Paper 3

Question 1:

• Reactivity of Group 1 elements with water

Question 2:

• The role of water towards the acidic properties of ethanoic acid

Question 3:

• The effect of copper(II) sulphate on the rate of reaction between metal and acid

Chemistry SPM 2010 Paper 2

Section A

Question 1 : (Chapter 2: The Structure of Atom)

• State of matter
• Conversion of matter
• Kinetic theory of matter

Question 2: (Salts & Numerical Calculation involving Chemical Equation)

• Heating of carbonate salt
• Writing chemical equation
• Numerical calculation involving chemical equation: molar mass, no of particles, molar volume

Question 3: (Periodic Table of Elements)

• Position of an element in periodic table
• Group 18 elements
• Chemical properties of group 1
• Compare & explain the difference in electronegativity between two elements

Question 4:(Chemical Bonds)

• Electron arrangement of an atom & ion
• Formula of compound
• Formation of covalent bond
• Properties of covalent compound & ionic compound

Question 5: (Electrolytic Cell & Voltaic Cell)

• Writing half equation of anion
• Identify negative terminal & anode
• Observation for both cells & explain
• Chemical test to identify gas produced

Question 6: (Acid, Bases & Salts)

• acid-base titration
• calculation to determine molarity of acid
• identify monoprotic acid & diprotic acid
• confirmatory test for sulphate ion

Section B

Question 7: (Chemical Formulae & Equation, Carbon Compounds, Chemicals for Consumer)

• Determine empirical formula & molecular formula of a hydrocarbon
• Drawing the structural formula & naming the isomer of the hydrocarbon
• Based on given food labels,  name the food additives  & determine the type of food additives & their funition.

Question 8:( Rate of Reaction)

• The meaning of rate of reaction & identify the factor that affects the rate of reaction
• Based on graf volume of gas released against time, compare the rate of reaction between two experiment by using the Collision Theory
• Suggest one way to obtain a curve & explain using the Collision Theory

Question 9: (Electrochemistry)

• Electrolysis of a concentrated aqueous solution: half equation at the cathode, formation of product at the anode & chemical test
• Electroplating an iron spoon with silver

Questin 10: (Thermochemistry)

• Heat of neutralisation of two different monoprotic acid with sodium hydroxide: explain the difference.
• Determine the change in temperate based on given heat of neutralisaiton
• Describe experiment to determine the heat of neutralisation.

Determing Melting Point

Example of Essay Question:
Solid Z has a melting point of 65^oC.  Describe a laboratory experiment to determine the melting point of Z. Your answer should show how the melting point of Z is determined.

Requirement of the Question 

a) Procedure and diagram
b) A table showing time and temperature.
c) Sketch a graph temperature of substance Z against time.
d) Show how melting point of substance can be obtained from the graph.

Cave of Giant Crystals, Mexico

The crystals in the cave are made of selenite, a form of the common mineral gysum.  Slelenite is translucent & soft.  Research carried out by the scientist through uranium-thorium dating suggests the larget crystals are about 600 000 years old.

For more details, visit http://www.crystalinks.com/mexicocrystals.html

Question Analsysis Paper 2 Section B & C Trial Chemistry SPM 2010 from All the States

This is quoted from Mr Yeoh blog http://spmchem.blogspot.com/ for your reference.

Perfect Score Chemistry Module Year 2010

Perfect Score Chemistry Year 2010 compiles common questions for Paper 2 & 3 SPM into 4 set. 

Set 1: Chapter 2, 3, 4, & 5 in Form 4
Set 2: Chapter 6 in Form 4 & Chapter 3 in Form 5
Set 3: Chapter 7 & 8 in Form 4; Chapter 1 & 4 in Form 5
Set 4 : Chapter 2 & 5 in Form 5, Chapter 9 in Form 4

To download,

• Question
• Answer Scheme

This set is helpful especially to know better common questions in Paper 2 & 3 SPM.

Trial SPM Wilayah Persekutuan Chemistry Paper 3 2010

Yesterday, my students sat for the exam. There are only two questions.

1. Determining heat of displacement of copper by different metals.
2. Planning an experiment to determine the position of carbon based on it ability to reduce metal oxies.

The first question were somehow the same like one of the past year question(heat of neutralisation).  My both classses did carry out this experiment. But I wonder whether they can answer the question with high score. Best of luck to all of them which is going to sit for Chemistry Trial SPM Paper 1 & Paper 2 tomorrow!

Question Analysis Chemistry Trial SPM Paper 3 2010 from Different States

States	Question 1	Question 2	Question 3
SBP	Reactivity of alkali metals towards oxygen	Effect of metals on iron rusting	Effect of size of zinc on the rate of reaction
Terengganu	Heat of combustion of various alcohols	Reactivity of alkali metals towards oxygen	Effect of catalyst on the rate of decomposition of hydrogen peroxide
Kedah	Reactivity of alkali metals with oxygen	Effect of quantity of catalyst on the rate of decomposition of hydrogen peroxide	Effect of metals on the rusting of iron
Penang	Electrical conductivity of lead(II) bromide & naphthalene in molten state	Effect of the amount of catalyst on the rate of reaction	Investigate the effect of ethanoic acid & ammonia solution on the coagulation of latex
Negeri Sembilan	Construct the electrochemical series based on voltmeter reading by using different metals pair with copper	Determine the concentration of potassium hydroxide by using titration method	Investigate the electrical conductivity of lead(II) bromide & naphthalene
Sabah	Compare heat of combustion of alcohols	Reactivity of halogens with iron wool	Investigate the effect of metals on iron rusting
Perak	End-point of titration	-	Effect of temperature on the rate of reaction
MRSM	Construct ionic equation for the precipitation of silver chloride	-	The effect of other metals on rusting of iron
Johor	Effect of other metals on rusting of iron	-	Effect of catalyst on the rate of reaction
Perlis	Construct electrochemical series based on the potential difference of pairs of metals	-	Effect of concentration/catalyst on the rate of reaction between an acid & metal
Kelantan	Heat of combustion of various alcohols	-	Effect of the type of electrode on the product of electrolysis at anode
Kuala Lumpur	Heat of displacement of copper by different metals	-	determine the position of carbon in the reactivity series based on its ability to reduce metal oxides
Pahang	Heat of combustion of alchols	-	Effect of catalyst on the rate of decomposition of hydrogen peroxide
Mallaca	Relationship between concentration of nitric acid and its pH value	-	Investigate the difference in electrical conductivity between an ionic compound and a covalent compound
Selangor	Effect of metal on rusting of iron	-	Effect of temperature on the rate of reaction

Trial Chemistry SPM 2010 from Different State

Please visit http://chngtuition.blogspot.com/2010/09/2010-spm-all-chemistry-state-trial-exam.html
to download Trial Chemistry SPM from

1. Johor
2. Perak
3. Kedah
4. Terengganu
5. Perlis
6. Kelantan
7. Pahang
8. Melaka
9. Penang
10. Negeri Sembiln
11. Selangor
12. Sabah
13. Penang
14. Selangor
15. MRSM
16. Kuala Lumpur

chem2u will update from time to time once chem2u find questions from other states too.

Chemistry Form 4 Finals Mallaca 2009

You may look at this set of question how the real format of  Paper 1, 2 & 3 looks like while preparing for the coming finals.

All the best, any doubts of the question, do leave a comment here. I''ll help to clarify the concepts.

Download

Chemistry Trial SBP 2010

Paper 1

Paper 2

Paper 3

Answer Scheme

If you feel this link is good for your friends, do share with them.

Chemistry SPM Paper 3 Question Analysis from 2003 – 2009

Year	Structure Question	Planning an Experiment
2009	1 Effect of type of electrode on the electrolysis of aqueous solution 2 Rate of reaction	1 Relationship between concentration of nitric acid & pH value
2008	1 Effect of ethanoic acid and ammonia solution on the coaagulation of latex	1 Reactivity of lithium, sodium and potassium with water
2007	1 Exothermic & endothermic reaction	1 Construct electrochemical series to determine factor that influence the difference in voltage
2006	1 Heat of neutralization	1 Compare iron & steel from the aspect of hardness/resistant to corrosion
2005	1 Freezing point of naphthalene 2 Electrochemical series based on potential difference	1 Effect of alloying on the hardness of metal 2 How concentration affect the rate of reaction of acid with metal
2004	1 Empirical formula of magnesium oxide 2 Reactivity series of metals	1 Prepare esters from two different alcohol
2003	1 Effect of temperature on the rate of reaction 2 Construct ionic equations through continuous variation method	1 Compare the elasticity of vulcanized rubber & unvulcanized rubber

SPM 2007 Paper 3 Question 2 - Chemical Cells

Please attempt the question first. If you have any querry, don't hesitate to email me. 

Suggested answer, please click here.

Preparation of Soluble Salt - Copper(II) Sulphate

The photo shows copper(II) sulphate prepared by one group of students in my chemistry class.
Copper(II) sulphate can be prepared by using one of the reactions

1. sulphuric acid and copper(II) oxide
2. sulphuric acid and copper(II) carbonate

Chemical equation for the first equation:

1. H₂SO₄ + CuO  --> CuSO₄ + H₂O
2. H₂SO₄ + CuCO₃  --> CuSO₄ + H₂O

The slide follows briefly shows the steps taken. The copper(II) oxide can be replaced by copper(II) carbonate too.



In SPM 2003, students are required to describe a laboratory experiment to prepare dry magnesium chloride based on given materials :

• magnesium sulphate solutions,
• dilute hydrochloric acid,
• potassium carbonate solution

 This question is a bit tricky. Students need to consider few things before write their plan:

1. Is magnesium chloride a soluble salt?
2. What are reactants used to prepare magnesium chloride?
3. Are the reactants required given in the list?
4. How to make use of the given materials?(Hint: precipitation reaction)
5. Explain the procedure in details.

Need any further guide, just write in the comment!

Krypton Bulb

krypton bulb

Krypton like other argon gases is used in lighting.  Krypton bulb usually emits bright white light.