Solution Found!
Consider the dissolution of PbS in water: Adding aqueous
Chapter 20, Problem 67P(choose chapter or problem)
Consider the dissolution of PbS in water:
\(\mathrm{PbS}(s)+\mathrm{H}_{2} \mathrm{O}(l) \rightleftharpoons \mathrm{Pb}^{2+}(a q)+\mathrm{HS}^{-}(a q)+\mathrm{OH}^{-}(a q)\)
Adding aqueous \(\mathrm{NaOH}\) causes more \(\mathrm{PbS}\) to dissolve. Does this violate Le Châtelier's principle? Explain.
Equation Transcription:
⇌
Text Transcription:
PbS(s) + H_2O(l) rightleftharpoons Pb^2 +(aq) + HS^-(aq) + OH^-(aq)
NaOH
PbS
Questions & Answers
QUESTION:
Consider the dissolution of PbS in water:
\(\mathrm{PbS}(s)+\mathrm{H}_{2} \mathrm{O}(l) \rightleftharpoons \mathrm{Pb}^{2+}(a q)+\mathrm{HS}^{-}(a q)+\mathrm{OH}^{-}(a q)\)
Adding aqueous \(\mathrm{NaOH}\) causes more \(\mathrm{PbS}\) to dissolve. Does this violate Le Châtelier's principle? Explain.
Equation Transcription:
⇌
Text Transcription:
PbS(s) + H_2O(l) rightleftharpoons Pb^2 +(aq) + HS^-(aq) + OH^-(aq)
NaOH
PbS
ANSWER:
Step 1 of 3
The reaction of lead sulfide in water is given as:
Here, there is violation of Le Chatelier’s principle as soon as there is addition of sodium hydroxide.