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L O A D I N G

JOM KIMIA A1

PART 4

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WHAT YOU MUSTKNOW ABOUTCHEMISTRY

PAPER 3

To Score Paper 3 is To Tackle Paper 3

KAMAL ARIFFIN BIN SAAIM SMK DATO¶ BENTARA LUAR BATU PAHAT e-mel : kamal_ariffin2006@yahoo.comwebsite: http://kemhawk.webs.com/

PART 4

S KOR A1 : The S ecrets

2

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PART 4

Question 1 / 2

Element KK0501 ² KK0511

YEAR: 2008

YEAR: 2007

YEAR: 2006 YEAR: 2005

YEAR: 2004

YEAR: 2003

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PART 4

Hypothesis

1. Not complete2. Reversal

3. No direction

S illy mistakes made by my students

TIP: Manipulated variables + responding

variables + direction4

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PART 4

Ex cellent response

Asid hidrochlorik / kuat menghasilkan (habapeneutralan) / (perubahan/kenaikan suhu) yang

lebih tinggi/rendah daripada asidetanoik/lemah.

[2006 1(c): Click to see the question]

S illy mistakes made by my students

Hypothesis

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 1

Score 2 6C HEMISTRY PAPER 3 4541/3

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PART 4

Example

Inaccurate response no. 4

Inaccurate response no. 3

Score 2

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PART 4

Ex cellent response

The reaction between sodium hydro x ide andwater is an e x othermic/endothermic reaction.

[2007 1(b)(ii): Click to see the question]

S illy mistakes made by my students

Hypothesis

W hen NaOH dissolves/added in water, itincrease/decrease in temperature / releaseheat / absorb heat.

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 1

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PART 4

Example

Inaccurate response no. 4

Inaccurate response no. 3

Score 2

Score 1 10C HEMISTRY PAPER 3 4541/3

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PART 4

R eading from apparatus

1. W rong decimal place

2. No / incorrect unit

3. Not from the meniscus

4. Some right and some wrong

S illy mistakes made by my students

TIP: read carefully

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PART 4

Ex cellent response

Suhu awal campuran : 28.0 oC

Suhu tertinggi campuran : 40.0 oC

Perubahan suhu : 12.0 oC

[2006 1(a): Click to see the question]

S illy mistakes made by my students

R ecord the reading from apparatus

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 1

Score 2 1 3C HEMISTRY PAPER 3 4541/3

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PART 4

ExampleInaccurate response no. 3

Score 1

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PART 4

Ex cellent response

Ex periment I : 28.0 oC 36.0 oC

Ex periment II : 29.0 oC 25.0 oC

Ex periment III : 27.0 oC 32.0 oC

Ex periment IV : 30.0 oC 27.0 oC

[2007 1(a)(i): Click to see the question]

S illy mistakes made by my students

R ecord the reading from apparatus

1 5

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PART 4

Inaccurateresponse no. 1

Score 2 16C HEMISTRY PAPER 3 4541/3

No decimal

place

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PART 4

Inaccurateresponse no. 2

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B elowmeniscuslevel

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PART 4

T he G raph1. No title for the a x is

2. No / incorrect unit

3. The graph line is not smooth

4. W rong shape of the graph

S illy mistakes made by my students

TIP: draw the graph completely

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PART 4

Excellent response

[2007 1(e)(iii): Click to see the question]

S illy mistakes made by my students

T he Graph

Volume of carbon dio x ide / cm 3

Time / s

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PART 4

Accurate response

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PART 4

Score 2 21C HEMISTRY PAPER 3 4541/3

Inaccurateresponse no. 1

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PART 4Inaccurateresponse no. 2

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PART 4Inaccurateresponse no. 3

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O perational D efinition

1. No idea

2. W rong interpretation

TIP: look the process/reaction what is theconcept/reason behind the observation.

S illy mistakes made by my students

PART 4

K ebolehan memberi tafsiran tentang sesuatu

konsep dengan menyatakan perkara yang dilakukan dan diperhatikan.

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PART 4

Ex cellent response

[2006 1(i)(i): Click to see the question]

S illy mistakes made by my students

O perational Definition

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Haba yang dibebaskan apabila 1 mol H + bertindakbalas dengan 1 mol OH - untuk menghasilkan mol air dihasilkan //

Haba yang dibebaskan per bilangan mol air

Haba yang dibebaskan apabila 1 mol air dihasilkan //

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PART 4

Example

Accurate response no. 2

Accurate response no. 1

Score 3

Score 3 26C HEMISTRY PAPER 3 4541/3

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 2

Score 1 27C HEMISTRY PAPER 3 4541/3

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PART 4

ExampleInaccurate response no. 3

Score 0

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PART 4

Ex cellent response

[2007 1(c)(ii): Click to see the question]

S illy mistakes made by my students

O perational Definition

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The decrease in temperature shows thatendothermic reaction happens whereheat/energy is absorbed from the surroundings.

Notes : The question refers to e x periment II , manystudents missed the question, see what happens «««..

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 0

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PART 4

Example

Inaccurate response no. 4

Inaccurate response no. 3

Score 0

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PART 4

Ex cellent response

[2008 1(e) : Click to see the question]

S illy mistakes made by my students

O perational Definition

32C HEMISTRY PAPER 3 4541/3

L ate x becomes solid when acid/H + is added //

L ate x becomes solid when e x posed to air

N otes: Much easier this year.

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PART 4

Example Accurate response no. 1

Score 3

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PART 4

Example

Inaccurate response no. 2

Inaccurate response no. 1

Score 2

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PART 4

Example

Inaccurate response no. 4

Inaccurate response no. 3

Score 2

Score 1 35C HEMISTRY PAPER 3 4541/3

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PART 4

Example

Inaccurate response no. 6

Inaccurate response no. 5

Score 1

Score 1 36C HEMISTRY PAPER 3 4541/3

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PART 4

P roblem S tatement

1. Not complete

2. W rite aim of e x periment

S illy mistakes made by my students

TIP: look the statement of the problem fromthe question, its always there.

37

To be continued««.2010

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TH E G HOST IN TH E

JAR

The secrets of success is to know something

nobody else knowsAristotle O nassis

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PART 3

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PART 4

Thank You Thank You END

OFPA

RT4

40

KAMAL ARIFFIN BIN SAAIM SMK DATO¶ BENTARA LUAR BATU PAHAT e-mel : kamal_ariffin2006@yahoo.comwebsite: http://kemhawk.webs.com/

MAS TERING PAPER 3 : The S ECRET S