2.) Suppose we have a solution PbI, and it is clear. PЫ, (8) > Рb* (аq) + 21 (аq) 2.a) If you add Pb(NO,),(aq) to the solution what direction does the reaction shift to (the left, right, or no shift in the reaction). 2.b) What does addition of KBr(aq) shift the equilibrium towards (the left, right, or no shift in the reaction).

2.) Suppose we have a solution PbI, and it is clear. PЫ, (8) > Рb* (аq) + 21 (аq) 2.a) If you add Pb(NO,),(aq) to the solution what direction does the reaction shift to (the left, right, or no shift in the reaction). 2.b) What does addition of KBr(aq) shift the equilibrium towards (the left, right, or no shift in the reaction).

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter16: Acids And Bases

Section: Chapter Questions

Problem 10ALQ

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Zn(s)+Cu2+(aq)⇄Zn2+(aq)+Cu(s)Keq=2×1037A 0.10mol sample of solid zinc was added to 500.0mL of 1.0M Cu(NO3)2(aq). After the mixture sits overnight, which of the followingbest describes what was most likely observed and measured the next morning and why?a)Almost all of the Zn(s) will still be in the beaker with no visible Cu(s), because equilibrium was not reached due to the very large Keqb) About half of the Zn(s) will have disappeared and Cu(s) willhave appeared in the beaker, because the system reached equilibrium.c) About two-thirds of the Zn(s) had disappeared and Cu(s) will have appeared in the beaker, because the system reached equilibrium.d) Virtually all of the Zn(s) will have disappeared and Cu(s) will have appeared in the beaker, because the reaction went almost to completion at equilibrium due to the very large Keq.
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A 0.010 M solution of the weak acid HA has an osmotic pressure (see chapter on solutions and colloids) of 0.293 atm at 25 °C. A 0.010 M solution of the weak acid HB has an osmotic pressure of 0.345 atm under the sameconditions.(a) Which acid has the larger equilibrium constant for ionizationHA [HA(aq) ⇌ A−(aq) + H+(aq)] or HB [HB(aq) ⇌ H+(aq) + B−(aq)] ?(b) What are the equilibrium constants for the ionization of these acids?
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You are on one of Saturn's many moons and discover a substance, Y2O that undergoes autoionization just like water on Earth. Y2O + Y2O ⇌ Y3O+ + OY– Through a series of experiments, you determine the equilibrium constant (Keq) for this autoionization reaction at various temperatures. The value of Keq at 28.7ºC is 7.6 x 10-14. What is the pY of the pure substance at this temperature? Report your answer to the hundreths place
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