Multiple Choice
Which of the following lead compounds is completely soluble in water?
70
views
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
Multiple Choice
Which of the following salts would have the greatest solubility in water at room temperature?
A
NaNO_3
B
PbI_2
C
AgCl
D
BaSO_4
Verified step by step guidance1
Identify that the solubility of salts in water depends primarily on their solubility product constant, \(K_{sp}\), which quantifies the extent to which the salt dissociates into its ions in solution.
Recall or look up the approximate \(K_{sp}\) values for each salt: \(PbI_2\), \(AgCl\), \(BaSO_4\), and \(NaNO_3\). Higher \(K_{sp}\) values indicate greater solubility.
Understand that \(NaNO_3\) is a salt of a strong acid (HNO_3) and a strong base (NaOH), which typically results in very high solubility in water, often considered completely soluble.
Compare the \(K_{sp}\) values of the slightly soluble salts (\(PbI_2\), \(AgCl\), \(BaSO_4\)) to the high solubility of \(NaNO_3\) to determine which salt dissolves the most at room temperature.
Conclude that since \(NaNO_3\) is highly soluble and the others have relatively low \(K_{sp}\) values, \(NaNO_3\) will have the greatest solubility in water at room temperature.
Related Videos
Related Practice
