How do chemical activity effects affect the molar solubility of ionic substances?
In general, increasing the ionic strength of solution decreases the activity coefficients, increasing the molar solubility. • How does the presence of salt affect the pH of a solution? Give the equations and describe the results. The short answer is that the pH=-log10AH+ will increase because the salt ions lower chemical activity. The long (and correct) answer is that the pH may increase or decrease. This is because the activity coefficient of OH- is always less than that of H+.
