Chapter 26
Chemical Principles in the Laboratory · 2 exercises
Problem 1
State in words what is meant by the solubility product equation for \(\mathrm{Ba}\left(\mathrm{IO}_{3}\right)_{2}\):$$K_{\mathrm{q} p}=\left[\mathrm{Ba}^{2+}\right]\left[\mathrm{IO}_{3}\right]^{2}$$
4 step solution
Problem 3
Lead chloride, \(\mathrm{PbCl}_{2}\), is moderately soluble with \(K_{\mathrm{ep}}\) equal to about \(1.7 \times 10^{-5}\). a. What is the solubility of lead chloride in pure water? (How many moles of \(\mathrm{PbCl}_{2}\) could be completely dissolved in one liter of solution?) __________ moles/L.. b. What would its solubility be in 0.10 M NaCl? (How many moles of PbCl_ could be completely dissolved in 1 L of solution?) __________ moles/L. c. The difference in these two results is caused by what is known as the common ion effect. State in words what the common ion effect predicts.
6 step solution