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CaF2(s)⇄Ca2+(aq)+2F−(aq) Ksp=3.9×10−11 HF(aq)⇄H+(aq)+F−(aq) Kc=6.8×10−4 The dissolution of calcium fluoride is represented by the equilibrium system above at 25°C. The F− ion is produced when the weak acid HF dissociates. If solid calcium fluoride is added to equal volumes of the following solutions at 25°C, in which solution will the most calcium fluoride dissolve? a) Pure Water b) 1 M HNO3(aq) c) 1 M NaOH(aq) d) A saturated aqueous CaF2 solution

CaF2(s)⇄Ca2+(aq)+2F−(aq) Ksp=3.9×10−11 HF(aq)⇄H+(aq)+F−(aq) Kc=6.8×10−4 The dissolution of calcium fluoride is represented by the equilibrium system above at 25°C. The F− ion is produced when the weak acid HF dissociates. If solid calcium fluoride is added to equal volumes of the following solutions at 25°C, in which solution will the most calcium fluoride dissolve? a) Pure Water b) 1 M HNO3(aq) c) 1 M NaOH(aq) d) A saturated aqueous CaF2 solution

Living by Chemistry
Living by Chemistry
2nd Edition
ISBN:9781464142314
Author:Angelica M. Stacy
Publisher:Angelica M. Stacy
ChapterU6: Showtime: Reversible Reactions And Chemical Equilibrium
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CaF2(s)⇄Ca2+(aq)+2F−(aq) Ksp=3.9×10−11
HF(aq)⇄H+(aq)+F−(aq) Kc=6.8×10−4

The dissolution of calcium fluoride is represented by the equilibrium system above at 25°C. The F− ion is produced when the weak acid HF dissociates. If solid calcium fluoride is added to equal volumes of the following solutions at 25°C, in which solution will the most calcium fluoride dissolve?

a) Pure Water

b) 1 M HNO3(aq)

c) 1 M NaOH(aq)

d) A saturated aqueous CaF2 solution

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