Consider the following reaction: HC,H3 O2 (ag) + H2O (1) K. М НС2Н3О2, what is the equilibrium concentration of H3O* at 25° C? H3O+ (ag) + C2H3O, (aq) = 1.8 × 10-° at 25° C [H3O*] .000215
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- If the molar solubility of PbCrO4 at 25 oC is 5.48e-07 mol/L, what is the Ksp at this temperature?Ksp = (b) It is found that 1.08e-09 g of Fe(OH)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Fe(OH)3.Ksp = (c) The Ksp of Mg3(PO4)2 at 25 oC is 1.04e-24. What is the molar solubility of Mg3(PO4)2?solubility = mol/LWhat is the concentration of free Ag+(aq) in a solution that is initially 0.01254 M in AgNO3 and 1.04842 M NH3? These two compounds react together to form [Ag(NH3)2]+. Kf([Ag(NH3)2]+) =1.600e7 1.023 7.484e-10 0.01254 6.250e-8Calculate the molar solubility of Ag2S (pKsp = 48.70) in a solution maintained at pH 9.00 and where the concentration of ammonia is 0.200 M.H2S: Ka1 = 1.0 x 10-7, Ka2 = 1.2 x 10-15[Ag(NH3)2]+ : Kf1 = 2.04 x 103, Kf2 = 8.13 x 103
- (a) If the molar solubility of Tl2S at 25 oC is 5.31e-08 mol/L, what is the Ksp at this temperature?Ksp = (b) It is found that 1.75e-06 g of Cu3(AsO4)2 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Cu3(AsO4)2.Ksp = (c) The Ksp of BaCO3 at 25 oC is 2.58e-09. What is the molar solubility of BaCO3? solubility = ____ mol/LGiven that the Ksp for silver chloride is 1.76 x 10-10, and the Kf of silver(I) diammine cation [Ag(NH3)2 +] is 1.7 x 107, calculate the maximum number of grams of silver chloride that will dissolve in 250.0 mL of a 3.25 M solution of ammonia.15a) The Ksp of AgCl(s) at a specific temperature is 1.8 × 10^-10 M. The concentration of Cl-(aq) in seawater is 0.54 M. Calculate the molar solubility of AgCl(s) in seawater. Explain why AgCl(s) is less soluble in seawater than in distilled water
- The value of Ksp for Cd(OH)2 is 2.5 x 10-14. (a) Whatis the molar solubility of Cd1OH22? (b) The solubilityof Cd(OH)2can be increased through formation of thecomplex ion CdBr42 - (Kf = 5 x 103). If solid Cd(OH)2 isadded to a NaBr solution, what is the initial concentrationof NaBr needed to increase the molar solubility of Cd(OH)2to 1.0 x 10-3 mol/L?The Ksp value for Cu(OH)2 is 1.6x10‑19 at 25oC, what will the equilibrium concentration of [Cu2+] in a solution with pH = 8.0?The Ksp of Al(OH)3 is 3.0 x 10-34. Assuming no other reactions (like metal-ligand complex formation) were happening, what is the concentration of Al3+ in a solution of saturated aluminum hydroxide?
- A saturated solution of Mg(OH)2 in contact with undissolved Mg(OH)2(s) is prepared at 25 °C. The pH of the solutionis found to be 10.17. Assuming that there are no othersimultaneous equilibria involving the Mg2 + or OH- ions,calculate Ksp for this compound.2. The molar solubility of sulfathiazole (weak acid) in water is about 0.001 M. a. What is the lowest pH allowable for complete solubility of a 1% solution of sodium sulfathiazole? (Mw = 277) , pKa = 7.12 b. A 5% solution?A solution containing Mg2+ was buffered to pH 9.81 and titrated with EDTA. Eriochrome black T, with p?a1 = 6.3 and p?a2 = 11.6 was used as the indicator. It is a diprotic acid, H2E What is the fraction of the predominant form of eriochrome black T in solution at this pH? (To answer this, report the alpha fraction of the indicator’s most prevalent species at this pH)