Concept explainers
Cadmium(ll) chloride is added to a solution of potassium hydroxide with a pH of 9.62.
(a) At what concentration of Cd2+ does a precipitate first start to form?
(b) Enough cadmium(II) chloride is added to make
(c) What percentage of the original hydroxide ion is left in solution?
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Chapter 15 Solutions
Chemistry: Principles and Reactions
- Consider the reaction BaF2(s)+SO42(aq)BaSO4(s)+2 F(aq) (a) Calculate K for the reaction. (b) Will BaSO4 precipitate if Na2SO4 is added to a saturated solution of BaF2?arrow_forwardWrite the expression for the equilibrium constant and calculate the partial pressure of CO2(g), given that Kp is 0.25 (at 427 C) for NaHCO3(s) NaOH(s) + CO2(g)arrow_forwardSome barium chloride is added to a solution that contains both K2SO4 (0.050 M) and Na3PO4 (0.020 M). (a) Which begins to precipitate first: the barium sulfate or the barium phosphate? (b) The concentration of the first anion species to precipitate, either the sulfate or phosphate, decreases as the precipitate forms. What is the concentration of the first species when the second begins to precipitate?arrow_forward
- The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.45 M sodium sulfate, Na2SO4?arrow_forwardSolubility is an equilibrium position, whereas Ksp is an equilibrium constant. Explain the difference.arrow_forwardBecause 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 /Csp of 1.1 X 10-,<) gives it such low solubility' that it can be safely consumed. What is the molar solubility' of BaSO4. What is its solubility' in grams per 100 g of water?arrow_forward
- Calculate the solubility in grams per 100 mL of BaF2 in a 0.10 M BaCl2 solution.arrow_forwardThe Handbook of Chemistry and Physics (http://openstaxcollege.org/l/16Handbook) gives solubilities of the following compounds in grams per 100 mL of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for each. (a) BaSiF6, 0.026 g/100 mL (contains SiF62- ions) (b) Ce(IO3)4, 1.5102 g/100 mL (c) Gd2(SO4)3, 3.98 g/100 mL (d) (NH4)2PtBr6, 0.59 g/100 mL (contains PtBr62- ions)arrow_forwardA solution saturated with a salt of the type M3X2 has an osmotic pressure of 2.64 102 atm at 25C. Calculate the Ksp value for the salt, assuming ideal behavior.arrow_forward
- Use the solubility product constant from Appendix F to determine whether a precipitate will form if 10.0 mL of 1.0 106 M iron(II) chloride is added to 20.0 mL of 3.0 104 M barium hydroxide.arrow_forwardCalculate the silver ion concentration, [Ag'], of a solution prepared by dissolving 1.00 g of AgNO3 and 10.0 g of KCN in sufficient water to make 1.00 L of solution. (Hint: Because k is very large, assume the reaction goes to completion then calculate the [Ag). RAg" (aq) + 2CN (aq) = Ag(CN)2(aq) kr = 1.0 x 1021 42 1g AgNO3 Helpful hint : You will need: AgNO3 = 169.989 1 mol AgNO3 169.98 g AgNO3 mol 5.89 x 103 mol Ag KCN = 65.12 3 mol 19KCN 1 mol KCN 65.12 g KCN 0.154 mol CN-arrow_forwardof the five salts listed below, which has the highest concentration of its cation in water? assume that all salt solutions are saturated and that the ions do not undergo any additional reactions in water. (a) lead(ii) chromate, ksp = 2.8 × 10–13 (b) cobalt(ii) hydroxide, ksp = 1.3 × 10–15 (c) cobalt(ii) sulfide, ksp = 5 × 10–22 (d) chromium(iii) hydroxide, ksp = 1.6 × 10–30 (e) silver sulfide, ksp = 6 × 10–51arrow_forward
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