Question

Use the equation of sodium chloride dissolving in water to complete the activity.
A student prepares a saturated sodium chloride solution. The student adds concentrated sodium hydroxide ( NaOH ) to the solution until a precipitate forms. What is happening with the equilibrium? In three sentences, to explain your answer.
(4 points)
NaCl(s)⇌Na+(aq)+Cl−(aq)

Answers

GPT-4o mini
When concentrated sodium hydroxide (NaOH) is added to the saturated sodium chloride solution, it increases the concentration of sodium ions (Na+) in the solution. According to Le Chatelier's principle, the equilibrium of the dissolution reaction \( \text{NaCl(s)} \rightleftharpoons \text{Na}^+(aq) + \text{Cl}^-(aq) \) will shift to the left to counteract the increase in Na+ concentration. This shift results in the formation of more solid NaCl, leading to the precipitation of sodium chloride as the system attempts to restore equilibrium.