A student wants to dissolve the maximum amount of CaF₂(Kₛₚ=3.2X10⁻¹¹) to make 1 L of aqueous solution.(a) Into which of the following solvents should she dissolve the salt?(I) Pure water(II) 0.01 M HF (III) 0.01 M NaOH(IV) 0.01 M HCl(V) 0.01 M Ca(OH)₂ b) Which would dissolve the least amount of salt?

A student wants to dissolve the maximum amount of CaF₂(Kₛₚ=3.2X10⁻¹¹) to make 1 L of aqueous solution.(a) Into which of the following solvents should she dissolve the salt?(I) Pure water(II) 0.01 M HF (III) 0.01 M NaOH(IV) 0.01 M HCl(V) 0.01 M Ca(OH)₂ b) Which would dissolve the least amount of salt?

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter16: Solubility And Precipitation Equilibria

Section: Chapter Questions

Problem 70AP

See similar textbooks

Similar questions

Describe a nonchemical system that is not in equilibrium, and explain why equilibrium has not been achieved.
5.49. Consider the following equilibrium: What is the effect on the equilibrium of each of the following changes? (You may need to calculate some standard enthalpy or Gibbs energy changes to answer these.) (a) The pressure is increased by decreasing the volume. (b) The temperature is decreased. (c) The pressure is increased by the addition of nitrogen gas, .
(5) Silver phosphate, Ag;PO4, is an ionic compound with a K, of 2.6 × 1018. Calculate the solubility of this compound in (a) pure water. (b) 0.20 mol L Na;PO4 solution.
Because barium sulfate is opaque to X-rays, it is suspended in water and taken internally to make the gastrointestinal tract visible in an X-ray photograph. Although barium ion is quite toxic, barium sulfate’s Ksp of 1.1 x 10–10 gives it such low solubility that it can be safely consumed. (a) What is the molar solubility of BaSO4? (b) What is its solubility in grams per 100 g of water?
If ΔHsoln < 0, will the conditions for solubility always be met?
The Ksp of lead (II) bromide is 1.86⋅10−51.86⋅10−5 . What is the concentration of bromide in a saturated solution of lead (II) bromide?
The solubility of iron(II) hydroxide, Fe(OH)2, is 1.43×10–3 gram per liter at 25 °C. (a) Write a balanced equation for the solubility equilibrium. (b) Write the expression for the solubility product constant, Ksp, and calculate its value. (c) Calculate the pH of a saturated solution of Fe(OH)2 at 25 °C.
The thermodynamic solubility product of A9CN is 6.0×10-17. (a) What is [Ag+] in a 0.033 M KNO3 solution? 4.0 7.75e-9 mol·L-1 (b) What is [Ag+] in a 0.033 M KCN solution? 4.0 1.81e-16 X mol·L-1
Assume that the change in concentration of N2O4 is small enough to be neglected in the following problem.(a) Calculate the equilibrium concentration of both species in 1.00 L of a solution prepared from 0.129 mol of N2O4 with chloroform as the solvent.N2 O4(g) ⇌ 2NO2(g) Kc = 1.07 × 10−5 in chloroform(b) Show that the change is small enough to be neglected.
The solubility product, Ksp, of AgCl is 1.8 x 10-¹0. Which of the following expressions is equal to the solubility of AgCl? (A) (1.8 x 10-¹0)² molar (B) 1.8 x 10 2 -10 molar (C) 1.8 x 10-10 molar -10 (D) √1.8 x 107 molar
For the reaction N2 (g) + 3H2(g) --> 2 NH3 (g), (a) what is the reaction Gibbs free energy at equilibrium in J/mol? The equilibrium constant of the reaction N2 (g) + 3H2(g) --> 2 NH3 (g) at 81 oC is Keq = 478,789. (b) What is the standard reaction Gibbs energy of this reaction in J/mol?
(b) The groundwater in a calcite based aquifer on a Caribbean island has a calcium ion concentration of 1 × 103 mol L¹ and a carbonate ion concentration of 3.5 x 106 mol L™¹. (i) Write the equation for the dissociation of calcite. (ii) Write the Kp expression for calcite and calculate its value. (iii) Calculate the degree of saturation of calcite in the ground water, if the Kp value was actually 3.3 × 10 mol²L2. What does the value indicate?