Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 15, Problem 113E
What is the effect on the amount of CaHPO4 that dissolves and the concentrations of Ca2+ and HPO4- when each of the following are added to a mixture of solid CaHPO4 and water at equilibrium?
(a) CaCl2.
(b) HCl.
(c) KClO4.
(d) NaOH.
(e) CaHPO4
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What is the effect on the amount of CaHPO4 that dissolves and the concentrations of Ca2+ and HPO4− when each of the following are added to a mixture of solid CaHPO4 and water at equilibrium?(a) CaCl2(b) HCl(c) KClO4(d) NaOH(e) CaHPO4
1) The equation below represents the equilibrium process of a saturated solution of Ca(OH)2 If the following changes are made to a saturated solution, what will be the effect on the [Ca2+]?
Ca(OH)2 (s) <--> Ca2+(aq) + 2 OH- (aq) ΔH = -16.6 kJ
A strong base is added to the solution (Decrease, Increase, No change)
More solid Ca(OH)2 is added to the container (Decrease, Increase, No change)
The solution is raised to a higher temperature (Decrease, Increase, No change)
A strong acid is added to the solution (Decrease, Increase, No change)
Ca(NO3)2 (s) is added. Ca(NO3)2 is very soluble (Decrease, Increase, No change)
Consider the buffer system of hydrofluoric acid, HF, and its salt, NaF:
HF(aq)+H2O(l) ⇌ H3O+(aq) +F-(aq)
a.) Which substance neutralizes the addition of OH-?
b.) When H3O+ is added, what happens to the equilibrium? Which way does it shift?
Chapter 15 Solutions
Chemistry by OpenStax (2015-05-04)
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