HOW TO LEARN AND MASTER STOICHIOMETRY.pptx

HOW TO LEARN AND
MASTER
STOICHIOMETRY
By
TEMPLE EKE

It deals with the study of
quantitative relationships...

...between the amounts of
elements present in a
compound...

...also between the amounts of
reactants and products in a
chemical reaction.

1. Formulas of chemical
compounds.
and...

2. Balanced chemical equations.

What do these calculations help
us to determine?

1. The amount of a particular
element present in a given
amount of a compound.

2. The amount of a compound
that contains a given amount of
a particular element.

3. The amount of a product that
will be formed from a given
amount of a reactant in a
particular reaction.

4. The amount of a reactant
required to produce a given
amount of a product in a
particular reaction.

5. The purity of a reactant used
in a particular reaction.

6. How efficient a reaction is in
forming a particular product, or
in using up a particular
reactant.

Why is Stoichiometry very
important?

Many careers in Science require
deep understanding and
mastery of Stoichiometry.

Stoichiometry is required
by...

... and many other careers in
science.

How should you learn
Stoichiometry?

Establish a positive perception
of Stoichiometry.

Take seven (7) important initial
steps.

Step One.
Get inspired and become
motivated.
How?

Have a clear vision of the role
Stoichiometry plays in your
career...

... only then will you be ready to
invest the time and effort
required to master the topic.

Step two.
Understand basic requirements
such as ...

... relative atomic mass, and
molar mass ...

... number of moles, and number
of particles.

Step Three.
Understand elementary
Mathematical concepts
such as ...

❏Fractions and decimals,
❏Ratios and percentages,
❏Simple proportion.

Step Four.
Recognize the mole...

... it is the central unit of the
amount of a substance.

Step Five.
Learn how to find the number of
moles for...

... solids, liquids, gases,
and ...

You can easily find the number
of moles from...

❏mass, m,
❏volume at STP, v,
❏number of particles, N, and
❏Molar concentration, C

1. From mass,
... just divide the given mass by
the molar mass.

2. From volume at STP,
... just divide the given volume
by the molar volume at STP.

3. From the number of particles,
... just divide the number of
particles by Avogadro’s number.

4. From the molar concentration of
a solution,
... in this case, you multiply the
molar concentration by the
volume of the solution (in )

Use a simple chart to
remember these relationships.

n
v
C N
m M
by Vm
by
NA
by
V (dm3)
by

Step Six.
Understand balancing of
chemical equations.
How?

... make the number of atoms of
each element the same on both
sides of the reaction.

Step Seven.
Understand how to establish the
correct stoichiometric
relationship ...

... between the substance given,
and the substance required.
How?

... 1. the chemical formula of the
given compound,
and ...

... 2. the balanced equation of the
given reaction.

The seven initial steps you have
just learned will give you the
capacity to handle calculations
in stoichiometry ...

You need to move on to become
...

... a master of Stoichiometry!

Here are Six (6)
recommendations for you to
master stoichiometry.

Recommendation One.
Learn in sections.

The two parts of stoichiometry
are divided into sections.

Learn how to master handling
calculations in each of the
sections.

The first part of stoichiometry
is ...

Chemical Composition
Stoichiometry.
... here, we focus on compounds
and the elements they contain.

It has the following sections ...

... 1. The mole and Molar Mass,
... 2. Percentage Composition
from Chemical Formulas,

... 3. Empirical and Molecular
Formula, and
... 4. The Laws of Chemical
Combination.

The second part of
stoichiometry is ...

Chemical Reaction
Stoichiometry.
... here, we focus on reactants
and products in chemical
reactions.

... 1. Number of moles, Molar
concentration, and Molar Volume,
... 2. The Limiting Reactant
concept,

... 3. Percent Yields, and
... 4. Sequential Reactions.

Once again, you must learn to
master handling calculations in
each of the sections.

Recommendation Two.
Recognize stoichiometric
calculations in categories.
Why?

This will help you to be quick in
solving problems in
stoichiometry.
How?

You’ll develop your capacity to
recognize patterns in
stoichiometric problems.

There are ten (10) clear patterns
of problems in stoichiometry.

Recognizing these patterns is
the key to mastering
stoichiometry.

Remember this quote:
“In any field of learning, mastery is
said to be achieved only when there
is the correct recognition and
handling of all the patterns that
characterize that field.”
-Temple Eke

So, let’s recognize these
patterns.

Pattern One.
Chemical Formulas and Elemental
Composition.

Pattern Two.
The Laws of Chemical
Combination.

Pattern Three.
Number of Moles and Number of
Particles.

Pattern Four.
.
Mass-Mass Relationships.

Pattern Five.
Mass-Mole Relationships.

Pattern Six.
Mass-Volume Relationships.

Pattern Seven.
Mole-Mole Relationships.

Pattern Eight.
Mole-Volume Relationships.

Pattern Nine.
Volume-Volume Relationships.

Pattern Ten.
Mixed Problems involving
Special Features such as ...

❏Limiting Reactant,
❏Percent Purity, and
❏Percent Yield.

Now, let’s return to the third
recommendation for you to
become a master...

Recommendation Three.
Learn to reason out your solutions
instead of using algorithms that
you don’t quite understand.
Why?

... you may be faced with a novel,
data-involved, and technically
mixed problem ...

...such problems are best solved
by correct reasoning based on
principles.

Recommendation Four.
Use a specialized textbook on
stoichiometry.
Why?

... because it is far better than a
general Chemistry textbook.
How?

... a general Chemistry textbook
is written to present all topics
within a limited space.
What does this mean?

... a specialized textbook on
stoichiometry is far more
detailed on the topic,
and ...

... it gives more illustrative
examples, and lots of practice
exercises.

Recommendation Five.
I highly recommend my textbook
...

Mastering Stoichiometry
Principles to Move from learner to Master
by
Temple Eke

It is an unmatched Masterpiece!
...

... highly detailed with many
illustrative examples, ...

... lots of practice exercises, ...

... very easy to read and
understand even without an
instructor.

Recommendation Six.
Practice! Practice!! Practice!!!
You must practise solving a wide
variety of problems
Why?

Practice will help to increase
your speed in developing
solution strategies when solving
problems.

Remember this quote:
“Mastery and expertise are
products of persistence and
consistency in practice.”
-Temple Eke.

Get started now!
Purchase a copy of my textbook,
from Amazon,...

Thank you!
Thank you!!
Thank you!!!

The Author
Temple Eke has been an active teacher of
Chemistry, Mathematics, Physics, and Biology
for over 30 years, helping thousands of
students excel in their various careers. He is
the author of over 40 books in Mathematics,
Physics, Biology, and Chemistry. He is well
known for his simplified teaching technique
and explicit writing style.

HOW TO LEARN AND MASTER STOICHIOMETRY.pptx

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