introducing of salt-preparation-chemistry grade 10thppt.

Welcome to G10 S2 Q3
Key Concept Related Concepts Global Context
Change Energy Scientific and technical innovation
Exploration: Students will explore
models of energy transformation
within a system.
Statement of Inquiry
Scientific and technological advances can enable functional energy transformation within, and
between, systems.
Inquiry Questions
Factual:
What is the definition of activation energy in chemical reactions?
What is the definition of catalyst?
Conceptual:
How different factors alters a system to change the rate of reaction?
What is the mechanism at which catalyst works to provide alternative pathway for a chemical
reaction?
Debatable:
Is our increasing energy usage sustainable?

What are we Learning for this Quarter (S2Q3)
Key Concept:
Change
Related Concept:
Energy
Global Context: Scientific and technical innovation
Salt preparation methods (Revision) W1L1
Identification of Cations W1L2
Identification of Anions W2L1
Identification of cations using Flame Test W2L2
Quanlitative analysis of cations and anions FA1 W3L1
Chemical reaction
Rate of reaction W4L1
Measuring rate of reaction Introduction to B&C W4L2
Factors affecting rate of reaction W5L1
B and C practical test W5L2
Catalyst and photochemical reaction FA2 W6L1
Reversible reaction W6L2
Le Chatelier's Principle W7L1
Revision W7L2
Revision W8L1
Revision W8L1
Exam Quarter Test QT Criterion A,B and C W9L1
Exam Quarter Test W9L2
Paper Review W10L1
Exothermic and Endothermic Reaction W10L2
Energy Profile W11L1
Dust explosion, fuel and radioisotope fuel W11L2
Acid, Base and Salts

Preparation of salt
They are everywhere..
In your food
In your house
EVEN IN YOU!!!!!
Statement of Inquiry: Scientific and technological advances can enable functional energy
transformation within, and between, systems.
.
K: The preparation method for soluble salts and insoluble salts
U: the rationale behind each preparation method
D:
i. Laboratory demonstration activity on preparation of soluble
and insoluble salts
ii. Design an experiment to prepare soluble salts and insoluble
salts by using titration and displacement techniques
Week 1 Lesson 1
Key Concept:
Change
Related Concept:
Energy

RECAP
1. Definition of acid based on
Brønsted−Lowry Theory?
Arrhenius Theory?
2. Definition of base based on
Brønsted−Lowry?
Arrhenius Theory?
3. Definition of neutralization? And state the applications
of this process in daily life.
4. How can we monitor pH change in acid and base
neutralization reactions?

RECAP
1. What is an anion?
2. Determine the anions and cations present in the
following compounds
(a) Sodium chloride
(b) Ammonium phosphate
(c) Silver sulphate
Notes: Each acid gives rise to a series of salts named by
the ANION
which they contain.
Statement of Inquiry: Scientific and technological advances can enable functional
energy transformation within, and between, systems.

What is Salt?
SALTS
• A salt is a compound formed when the hydrogen ions in
an acid are replaced by metal ions or by ammonium
ions.
• Compounds in which the H+ ions in an acid have been
replaced by ammonium ions (NH4
+) are called
ammonium salts.
.

Example
Statement of Inquiry: Understanding of Balanced relationship between acid base reactions
allows effective interactions of systems.

Salt consist ofAnion from acids and Cation
transformation within and between, systems.
Key Concept:
Change
Related Concept:
Energy

Metal ions Sulphate
salts
+ H2SO4
Chloride
salts
+ HCl
Carbonate
salts +
H2CO3
Nitrates
+ HNO3
Na+
Mg2+
Cu2+
Al3+
I do We do You do…….
Key Concept:
Change
Related Concept:
Energy

Soluble and Insoluble salts
Salts Soluble Insoluble
Nitrates All None
Sulphates All sulphates Except :
- Ba (Barium)
- Pb (II) (Lead (II))
- Ca (Calcium)
(BaLeCa)
Chlorides All Except
- Pb (II)(Lead (II) )
- Ag (Silver)
(LeSi)
Carbonates Except
S (sodium)
P (potassium)
NH₃ (ammonium)
All
Key Concept:
Change
Related Concept:
Energy

Classification of Salts
Soluble salts
Insoluble salts
All nitrates NO3
-
All sulphates SO₄²-
All chlorides Cl-
Ammonium, potassium and
sodium carbonates
Barium (Ba), Lead (Pb) and
calcium (Ca) sulphates
Plumbum (Pb) chloride and
silver (Ag) chloride
All carbonates
Key Concept:
Change
Related Concept:
Energy

Preparation of salt
Soluble salts
Titration for
SPA salts
Decomposition
reaction for non-SPA
Acid + Metal
Acid + Metal
carbonate
Acid + Metal oxide
Insoluble salts
Soluble salt + soluble salt
Other salts
Sodium Na+
Potassium K+
Ammonium NH4+
Key Concept:
Change
Related Concept:
Energy

Preparation of PAS soluble salts
Neutralisation Reaction
Example
Preparation of Potassium Chloride
H Cl K OH
acid alkali
K Cl H OH
salt water
Titration method: Technique used to carry out neutralisation. Enable the
measurement of volume of acid required to neutralise known volume and
concentration of alkali.
End point: point when indicator changes colour during titration.

Preparation of PAS soluble salts
Neutralisation Reaction
Example
Preparation of Potassium Chloride
H Cl Na OH
acid alkali
? ? H OH
salt water
Titration method: Technique used to carry out neutralisation. Enable the volume of
acid required to neutralise known volume and concentration of alkali.
End point: point when indicator changes colour during titration.

Preparation of soluble salt by
titration method
PHENOLPHATHALEIN

Preparation of soluble salt by titration
method
Key Concept:
Change
Related Concept:
Energy

K: The soluble and insoluble
salts and the preparation
method for soluble salts
U: the rationale behind each
preparation method
D:
Laboratory demonstration
activity on preparation of
soluble.
Design an experiment to
prepare soluble salts by
using titration and
displacement techniques
.
Preparation of soluble salt by titration method
Three
Hot
Cats
Frightened
Dog
Key Concept:
Change
Related Concept:
Energy

Preparation of soluble salt by titration
method
method for soluble salts
preparation method
D:
soluble.
prepare soluble salts by using
titration and displacement
techniques
Activity 1
(Criterion B iv. Design a method, with limited success)
Get into a group of 5 and design the procedure using
graphic organizers for preparation of the following salts.
Group 1 : potassium sulphate
Group 2 : ammonium chloride
Group 3: sodium nitrate
Group 4 : Ammonium sulphate
Time given: 5 minutes
Key Concept:
Change
Related Concept:
Energy

energy transformation within and between, systems.
Preparation of soluble salt by
displacement reaction
1. 50cm3 of sulphuric
acid poured into beaker.
Warm the acid
2. Use spatula to
transfer excessive
amount of copper (II)
oxides.
Example 1
K: The soluble and
insoluble salts and the
preparation method for
soluble and insoluble salts
U: the rationale behind
each preparation method
D:
soluble.
using titration and
Non-PAS salts
Filtrate with
salt
Unreacted
residue
Key Concept:
Change
Related Concept:
Energy

.
Purification of non-PAS salt
K: The soluble and
soluble salts
D:
soluble.
using titration and
Example 2
Key Concept:
Change
Related Concept:
Energy

.
Preparation of Non-PAS salt
K: The soluble and
soluble salts
D:
soluble.
using titration and
Key Concept:
Change
Related Concept:
Energy
How would you prepare the following
salt?
(a) CuCl2

Activity 2: Fill in the blank to complete the word equation
Key Concept:
Change
Related Concept:
Energy

Preparation of insoluble salts
Soluble salt Soluble salt Soluble salt
Insoluble salt
Example 1
Key Concept:
Change
Related Concept:
Energy

.
Activity
Insoluble salt
Cation Anion
Chemical
equation
Ionic
equation
Zinc carbonate
Lead (II)
sulfate
Lead (II)
Iodide
Barium
sulphate
Salt solution chosen
Reflection
Key Concept:
Change
Related Concept:
Energy

.
Take home task
Get into group of 5 and design an experiment for preparation of the following salt.
Present your work to your friends in your next class:
Include the followings in your presentation
(a) The suggested reactants and write a complete chemical equations for the reaction.
(b) Name the method and procedures to prepare the given salt
( Criterion B iv. Design a method, with limited success)
(c) Provide at least 2 safety precaution that you need to consider while conducting the
experiment
Group 1 : Lead (II) sulphate Group 5: Barium sulphate
Group 2: Silver nitrate Group 6: Calcium sulphate
Group 3: Copper (II) sulphate
Group 4: Lead (II) chloride
Key Concept:
Change
Related Concept:
Energy

Objective Traffic Lights
How do you feel about the lesson
objectives?
Red = don’t think I have grasped this
Amber = feeling OK about this, have
just about got there
Green = Confident I have achieved
this
method for soluble salts and
insoluble salts
preparation method
D:
i. Laboratory demonstration
soluble.
ii. Design an experiment to
using titration and

introducing of salt-preparation-chemistry grade 10thppt.

Recommended

Recommended

More Related Content

Similar to introducing of salt-preparation-chemistry grade 10thppt.

Similar to introducing of salt-preparation-chemistry grade 10thppt. (20)

More from RiezaAabeyiYldrm

More from RiezaAabeyiYldrm (9)

Recently uploaded

Recently uploaded (20)

introducing of salt-preparation-chemistry grade 10thppt.

Editor's Notes