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| Goal
I. Use a balanced chemical equation to derive mass relationships among
reaction components. |
Preparation: Review and expand the skills
of balancing chemical equations (pp. 103-106).
Objectives: To meet the requirements of Goal
I, you must be able to:
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state the
Law
of Conservation of Matter as it applies to chemical reactions; (p.
44)
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use mole
ratios derived from a balanced chemical equation to calculate
quantitative relationships among the components of the reaction;
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explain
limiting reagent and excess reagent as these terms apply to reactants in
a chemical reaction;
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identify limiting
reagent and calculate the excess reagent (in moles or grams) in a balanced
chemical reaction, given the quantities of two or more reactants (in moles
or grams);
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distinguish between
quantitative
and non-quantitative reactions; between the main reaction and side
reaction;
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calculate the theoretical
and percent yield, given quantities of one or more of the reactants.[Top]
| Goal II. Relate the chemical
formula for a compound to its composition by mass. |
Objectives: To meet the requirements of Goal
II, you must be able to:
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distinguish between
the empirical formula and the molecular formula for a molecular compound;
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calculate calculate
the empirical formula for a compound given its percent by mass composition;
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calculate the mass
percent composition of a compound from its empirical or molecular formula;
-
use the empirical
formula together with the formula mass for a compound to derive its molecular
formula.[Top]
| Goal III. Interpret the
various models used to represent molecular structures.. |
Objectives: To meet the requirements of Goal
III, you must be able to:
-
distinguish between
the molecular, structural and condensed structural formula for a compound.
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Unit 3 Assignments
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| Read: |
Text
Chapter 3, pp. 95-115 |
| Video
Programs: |
- Balancing
Chemical Equations
- Stoichiometry
I
- Stoichiometry
III
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| Textbook
Assignments: |
Read
and Understand all "Sample Problems," "Follow
Up Problems" and the blue-colored problems at the
end of the chapters.
The
answers for the Follow Up Problems are at the end
of the chapter; the answers for the blue-colored
problems are in Appendix C.
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| ChemSkill
Builder Assignments: |
Mandatory
assignments to be submitted for grade
Chapter
4.2, 4.3, 4.4, 4.5, 4.6 Limiting Reagent, % Composition,
Empirical Formula,
Chapter
5.4 Balancing Equations
Chapter
6.1, 6.4 Molar Concentration and Molarity of Ions
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Do Cyber Lab 3. Perform the experiment on all three unknowns. (See CHM 111 Laboratory Guide.)
Submit via mail to ELI. |
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