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- 1. Which does not belong to the group?* Hg₂ + 2Cl⁻¹ ⇌ HgCl₂ Ag⁺¹ + Cl⁻¹ ⇌ AgCl₂ Pb⁺² + 2Cl⁻¹ ⇌ PbCl₂ Hg₂ + 2Cl⁻¹ ⇌ Hg₂Cl₂ 2. Which does not belong to the group?* 3PbS + 2NO₃¹⁻ + 8H₃O ⇌ 3Pb²⁺ + 2NO +3S + 12H₂O 3HgS + 2NO₃¹⁻ + 8H₃O ⇌ 3Hg²⁺ + 2NO +3S + 12H₂O 3Bi₂S₃ + 2NO₃¹⁻ + 8H₃O ⇌ 2Bi³⁺ + 2NO +3S + 12H₂O 3CuS + 2NO₃¹⁻ + 8H₃O ⇌ 3Cu²⁺ + 2NO +3S + 12H₂OAre the following monoprotic or polyprotic H2S04 H2CO3 H3PO4 HNO3 HCl CH3COOHWhich does not belong to the group?* 3CuS + 2NO₃¹⁻ + 8H₃O ⇌ 3Cu²⁺ + 2NO +3S + 12H₂O 3HgS + 2NO₃¹⁻ + 8H₃O ⇌ 3Hg²⁺ + 2NO +3S + 12H₂O 3Bi₂S₃ + 2NO₃¹⁻ + 8H₃O ⇌ 2Bi³⁺ + 2NO +3S + 12H₂O 3PbS + 2NO₃¹⁻ + 8H₃O ⇌ 3Pb²⁺ + 2NO +3S + 12H₂O
- At elevated temperatures, NaHCO3 is converted quantitatively to Na2CO3:Which of the following protons has the lowest pKa? HE Hc HA HB Ho 1. Ha 2. Hb 3. Нс 4. Hd 5. He Whidaafthe fellowin retonebac the louoctpKaThe following reactions all have K > 1.1) HF (aq) + C6H5O- (aq) F- (aq) + C6H5OH (aq)2) CH3COOH (aq) + C6H5O- (aq) C6H5OH (aq) + CH3COO- (aq)3) HF (aq) + CH3COO- (aq) F- (aq) + CH3COOH (aq)Arrange the substances based on their relative acid strength. Strongest acid, intermediate acid, weak acid, not a Bronsted-Lowry acid. CH3COOH HF C6H5OH CH3COO- F- C6H5O-
- 4. Please rank the following in order of ... a) increasing pK: HCIO4, HCIO3, HCIO2, H2O b) increasing solubility in water: BaSO4, CaSO4, MgSO4What is the equilibrium-constant expression of the dissociation of H3AsO4 to H3O+ and AsO4 3- ? a. Ka = [H3O+] [AsO43−] [H3AsO4] b. Ka = [H3AsO4] [H3O+] [AsO43−] c. Ka = [H3O+]3 [AsO43−] [H3AsO4] d. Ka = [H3AsO4] [H3O+]3 [AsO43−] e. Ka = [H3O+]3 [AsO43−] [H3AsO4][H2O]In the dissociation of PCI, as PCl5(g) PC₁₁(g) + C₁₂(g) if the degree of dissociation is a at equilibrium pressure P, then the equilibrium constant for the reaction is a²p² a. Kp b. K, = 1+α²P 1-α- p² a²P c. K = 1-a² d. Kp =
- i. LDA ii. C,H;I of II III on IVUse pKa values to predict which of the following equilibria will favor the reactants. B C O + OH₂ + SH Br NH₂ Multiple answers: Multiple answers are accepted for this question H OH + LOH Yo HBr e NHO, N and S atoms have lone pairs and can thus serve as Bronsted-Lowry or Lewis base. Which atom in the following compound will be protonated first and why? H3C. : I3D S. `N'