Topics You Should Know When Entering into Chemistry
123/128
(These are the topics you should know if you will skip Chemistry 122
and enter directly into Chemistry 123 or 128. Approximately 75-80% of all
Carleton students skip Chemistry 122 and enter directly into Chemistry
123 or 128)
Commonly people wonder specifically about:
- Redox reactions? NO
- Limiting reagents? YEP
- Titrations and Acid/Base reactions? Nope,
but we will get to it in lab very soon!
The following list of topics you should feel fairly comfortable with. You
can review all of these topics in any introductory text. Several of the
topics you should be able to do without the help of a text after reviewing
your chemistry (such as calculating moles given a periodic table, or calculating
a molecular weight and balancing a chemical equation). Other topics you
might need to review or relearn with a text (such as Dalton's law of Partial
Pressure). The more difficult topics that we would
expect you would need to revisit while taking 123/128 are marked with an
asterisk. On each of these topics you should ask yourself: Could
I quickly review this material and feel comfortable using it when needed?
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Measurements
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Units
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Significant Figures
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Use of exponents and logarithms
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Temperature Scales and interconversion
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Density
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Classification of matter (elements, compounds and mixtures)
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Atomic Theory
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Concepts of atoms, molecules elements and ions
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Introductory concepts in atomic composition (protons, neutrons, electrons
and isotopes)
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Stoichiometry
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Atomic and molecular weights
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Moles
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Percent composition of formulas *
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Formulas of compounds
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Balancing chemical equations
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Calculation of amounts of reactants and products
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Limiting reagents
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Percent yield *
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Gases
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The measurement of pressure
- The ideal gas law (PV = nRT)
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Dalton's law of partial pressures *
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Solutions
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Composition of solutions (molarity, percent by weight or percent by volume*)
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Net ionic equations and aqueous solutions.
