Exam 1 review
Chapter 3 (Secs 3.6 - 3.7)
- How do we convert moles of one substance in a reaction to moles of any other
substance in a reaction?
- Given the gram masses of two reactants in a reaction, how do we identify the
- Given the limiting reactant in a reaction, how do we calculate
the amount of excess reactant remaining at the end of the reaction?
- How do we calculate the theoretical yield of a reaction?
- How do we calculate the per cent yield of a reaction?
- Suggested problems: 3.57, 3.61, 3.71, 3.73
Chapter 4 (4.5 - 4.6)
- Given any two of the following: moles, volume, or molarity, be able to
calculate the third.
- Be able to work solution dilution problems (i.e. MconcVconc = MdilVdil)
- What is a titration?
- What is the definition of the equivalence point in a titration?
- Be able to work solution stoichiometry problems! Review writing balanced chemical equations for double-
displacement and neutralization reactions, and review the general solubility rules!
- Suggested problems: 4.61, 4.67, 4.75, 4.81, 4.83
Chapter 13 (Secs 13.4 - 13.5)
- How does one calculate the mass % of a component in a solution?
- How do we express the concentration of a very dilute solution in parts per million (ppm)? ppb?
- How do we calculate the mol fraction of a component in a solution?
- How do we calculate the molarity of a solution? Be able to calculate moles given molarity and volume,
volume given molarity and moles, etc.
- How do we calculate the molality of a solution?
- Why do we use molality?
- What are colligative properties?
- How does a nonvolatile solute lower the vapor pressure of the solvent
above a solution?
- How do we differentiate between molecular and ionic solutes when we consider colligative properties?
- What is a 1:2 ionic compound? A 1:3 ionic compound?
- How is Raoult's Law used to calculate the vapor pressure above a solution?
- What is an ideal solution? Are many solutions ideal?
- What is primarily responsible in a solution for deviations from Raoult's law behavior?
- How is the boiling point elevation/freeze point depression calculated for
a solution? What must be taken into account if the solute is ionic?
- What is osmotic pressure of a solution? How do we calculate it?
- How do we gauge (in a qualitative sense) the effect on boiling point/freeze
point of a solution by looking at the nature of the solute (i.e. electrolyte/nonelectrolyte
Practice problems: 13.35, 13.37, 13.45, 13.47, 13.59, 13.61, 13.65, 13.67, 13.69
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