Q1. Does a precipitate form when 0.10 L of M Pb(NO) is added to 0.40 L of M Na$_2$SO?

Background

Topic: Solubility Product (Ksp) and Precipitation

This question tests your ability to predict whether a precipitate will form when two solutions are mixed, based on the concentrations of ions and the solubility product constant (Ksp) for the possible precipitate.

Key Terms and Formulas

• Ksp: The solubility product constant, which represents the maximum product of ion concentrations that can exist in solution without forming a precipitate.

• Q: The reaction quotient, calculated from the actual concentrations of ions after mixing. If , a precipitate forms.

• Key formula:

Step-by-Step Guidance

1. Calculate the total volume after mixing: .

2. Find the new concentration of Pb after mixing, using dilution:

3. Find the new concentration of SO after mixing, using dilution:

4. Calculate using the formula with the concentrations you just found.

Try solving on your own before revealing the answer!