Prelaboratory Questions And Problems

1. Fill out the following table.

Solubility at 25°C

Compound

(g compound/100 g H20)

CaS03

CaS04

CaCl2

2. How much SO2 can be theoretically produced from the burning of 1 L of unleaded regular gasoline in an automobile engine (without catalytic conversion)? (Students may be requested to calculate this for one or more gasoline vendors—Exxon, Shell, Conoco, etc.)

3. Find at least three industrial uses for gypsum (CaS04).

4. Calculate and plot a species distribution diagram for sulfite in the pH range 0-14 (see Chapter 2 of the companion book). From here, which sulfur-

containing species undergoes oxidation in the present experiment?

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