Multiple Choice
Which of the following is true when a salt is dissolved in water?
3
views
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following salts will NOT become more soluble in water when the solution is made acidic?
A
CaCO3
B
NaCl
C
FeS
D
BaSO3
Verified step by step guidance1
Understand the concept of solubility changes in acidic solutions: Salts containing anions that are basic or can react with H\_3O\^+ (acid) tend to become more soluble in acidic solutions because the acid reacts with the anion, shifting the dissolution equilibrium to dissolve more salt.
Identify the anions in each salt: CaCO\_3 contains CO\_3\^{2-}, FeS contains S\^{2-}, BaSO\_3 contains SO\_3\^{2-}, and NaCl contains Cl\^-.
Analyze the behavior of each anion in acidic solution: CO\_3\^{2-}, S\^{2-}, and SO\_3\^{2-} are basic anions that react with H\_3O\^+, forming weak acids or gases, which increases solubility. Cl\^- is the conjugate base of a strong acid (HCl) and does not react with acid, so its solubility is not affected by acidity.
Conclude that salts with anions like CO\_3\^{2-}, S\^{2-}, and SO\_3\^{2-} will become more soluble in acidic solutions, while salts like NaCl will not show increased solubility when the solution is made acidic.
Therefore, the salt that will NOT become more soluble in acidic water is NaCl.
2:07mWatch next
Master Solubility and Insolubility with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Solubility Rules practice set
Problem sets built by lead tutorsExpert video explanations