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1 Chemistry Practical Tasks Leung Siu Wai Ho Fung College (Sponsored by Sik Sik Yuen) 19 th June, 2014 WE DO ! Why? What? When? & How?

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Page 1: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Chemistry Practical Tasks

Leung Siu Wai

Ho Fung College (Sponsored by Sik Sik Yuen)

19th June, 2014

WE DO !

Why? What? When? & How?

Page 2: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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I hear …. I forget. I see …. I remember. I do …. I understand.

Practical Tasks .......

Why Do We Do?

Page 3: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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The Nine Generic

Skills

Communication Skills

Collaboration Skills

Creativity

Critical Thinking

Skills

Self-management Skills

Information Technology

Skills

Study Skills

Numeracy Skills

Problem Solving Skills

Page 4: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... What Do We Do?

Page 5: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... When Do We Do? How Do We Do?

Page 6: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis....... When Do We Do? How Do We Do?

S4 Post-examination Activities

Page 7: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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http://minisite.proj.hkedcity.net/chemtech/eng/index.html

Chemistry Experimental Techniques (化學實驗技巧 )

Page 8: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 9: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 10: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 11: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Determining the concentration of chloride ions in a sea water

Determining the sodium hypochlorite content in a bleach

More Practical Tasks on

Volumetric Analysis .......

When Do We Do? How Do We Do?

Page 12: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 13: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 14: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... When Do We Do? How Do We Do?

Page 15: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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#1

#2

#3 #6

#5

#4

Page 16: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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#1

#2

#3 #6

#5

#4

Page 17: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... When Do We Do? How Do We Do?

Page 18: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Enthalpy Changes of Combustion of Alcohols

Page 19: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Enthalpy Changes of Combustion of Alcohols

Page 20: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... When Do We Do? How Do We Do?

Page 21: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Concentration on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 22: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Concentration on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 23: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Concentration on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 24: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Temperature on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 25: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Temperature on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 26: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Investigating Effect of Temperature on Reaction Rate

S2O32-(aq) + 2H+(aq) SO2(g) + S(s) + H2O(l)

Page 27: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Volumetric Analysis

Qualitative Analysis and Redox Reactions

Enthalpy Changes of Combustion of Alcohols

Concentration/Temperature Change on Reaction Rate

Organic Synthesis

Practical Tasks ....... When Do We Do? How Do We Do?

Page 28: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Page 29: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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http://minisite.proj.hkedcity.net/chemtech/eng/index.html

Chemistry Experimental Techniques (化學實驗技巧 )

Page 30: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Synthesis of 3-Methyl-1-butyl ethanoate (Fragrance of Banana)

Oxidizing ethanol to ethanoic acid and testing the ethanoic acid produced

Preparing and purifying 2-chloro-2-methylpropane

Preparing nylon

Organic Synthesis

Page 31: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Fragrance of Banana

Page 32: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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Synthesis of 3-Methyl-1-butyl ethanoate

Fragrance of Banana

Page 33: WE DO ! Why? What? When? & How? - cd1.edb.hkedcity.netcd1.edb.hkedcity.net/cd/science/chemistry/nss/new/Enhancing... · Investigating Effect of Concentration ... Oxidizing ethanol

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I hear …. I forget. I see …. I remember. I do …. I understand.

Practical Tasks .......

Why Do We Do?