CHM 2046 Exam 3 all chapters 2024 Solved 100%

PRINCIPLES OF CHEMISTRY: A MOLECULAR APPROACH (TRO) Chapter 16 CHM 2046 Exam 3 all chapters 2024 Solved 100% Chapter 16 Aqueous Ionic Equilibrium (CH. 18) 56) Which of the following compounds will have the highest molar solubility in pure water? A) PbSO 4, Ksp = 1.82 × 10 -8 B) MgCO 3, Ksp = 6.82 × 10-6 C) AgI, K sp = 8.51 × 10 -17 D) PbS, K sp = 9.04 × 10-29 E) FeS, K sp = 3.72 × 10-19 57) Which of the following compounds solubility will not be affected by a low pH in solution? A) AgCl B) Mg(OH) 2 C) CaF2 D) CuS E) BaCO 3 58) Which of the following compounds will be more soluble in acidic solution than in pure water? A) PbCl2 B) FeS C) Ca(ClO 4)2 D) CuI E) None of the above will be more soluble in acidic solution. 67) Identify the salts that are in hard water. A) CaCO 3 and MgCO 3 B) MgSO 4 and CaSO 4 C) NaCl and KBr D) NaHSO 4 and Na2SO4 E) NaOCl and HOCl 59) Give the expression for the solubility product constant for PbCl2. [Pb2+ ][Cl- ]2 A) [PbCl 2 ] [PbCl 2 ] B) [Pb2+ ][Cl-]2 C) [Pb2+ ][Cl–]2 [Pb2+ ][Cl- ] D) [PbCl 2 ] E) [Pb2+]2[Cl–] 60) Give the expression for the solubility product constant for BaF2. [BaF 2 ] A) [Ba2+ ][F- ]2 4 4 B) 4 3 ] 3 [Ba2+ ][F- ]2 B) [BaF 2 ] C) [Ba2+]2[F–] D) [Ba2+ ][F–]2 E) [Ba2+][F–] 61) Give the expression for the solubility product constant for Ca3(PO4)2. [Ca2+ ]3[PO 3-]2 A) Ca3 (PO4 )2 Ca3(PO4 )2 [Ca2+]3[PO 3-]2 [Ca2+ ]2[PO 3- ]3 C) Ca3(PO4 )2 D) [Ca2+ ]2[PO43–]3 E) [Ca2+ ]3[PO43–]2 62) Give the expression for the solubility product constant for Cr2(CO3)3. A) [Cr3+ ]2[CO32-]3 [Cr3+ ]2[CO 2- ]3 B) Cr2 (CO3)3 Cr2 (CO3)3 C) [Cr3+ ]2[CO 2- 3 3 [Cr3+ ]3[CO 2- ]2 D) Cr2 (CO3)3 E) [Cr3+ ]3[CO32-]2 1) Which of the following solubility product expressions is incorrect? A. Cu2S, Ksp = [Cu+ ][S2- ] B. Co2S3, Ksp = [Co3+] 2 [S2 - ] 3 C. Ni(CN)2, Ksp = [Ni2+][CN - ] 2 D. AuI, Ksp = [Au+ ][I - ] E. Cr(OH)3, Ksp = [Cr3+][OH - ] 3 1) Which of following substances will increase the molar solubility of nickel(II) phosphate in a saturated solution? A. KOH B. Na3PO4 C. AgCl D. HNO3 E. AlPO4 2) The hydroxide -ion concentration of a saturated solution of Fe(OH)2 is 1.16×10^ -5M. What is the solubility product constant for Fe(OH)2? A.2.26×10 -2 B.7.80×10 -16