At 25 °C, Kc = 1 × 10–85 for the reaction 7IO3–(aq) + 9H2O + 7H+(aq) I2(aq) + 5H5IO6(aq) What is the value of Kc for the following reaction? I2(aq) + 5H5IO6(aq) 7IO3–(aq) + 9H2O + 7H+(aq) Enter your response in scientific notation, e.g. enter 2E3 for 2000
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At 25 °C, Kc = 1 × 10–85 for the reaction
7IO3–(aq) + 9H2O + 7H+(aq) I2(aq) + 5H5IO6(aq)
What is the value of Kc for the following reaction?
I2(aq) + 5H5IO6(aq) 7IO3–(aq) + 9H2O + 7H+(aq)
Enter your response in scientific notation, e.g. enter 2E3 for 2000
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- Calculate the value of AH° for each of the following reactions: CHĄ9) + 202(9) CO2(9) + 2H20(9) (Write your answer in 1 decimal place in kilojoule)The polyprotic acid, H3X, has acid dissociation constants Ka1 = 1.3×10-1, Ka2 = 6.5×10-4, and Ka3 = 3.3×10-5. What is the Kc value of the following reaction at 25°C?HX2−(aq)+OH−(aq)⇋X3−(aq)+H2O(l)HX2−(aq)+OH−(aq)⇋X3−(aq)+H2O(l)Report your answer to two significant figures using E notation.Calculate the AH°ran for the reaction shown below. 103 (aqg) + l'(aq) + 2 H* (aq) + 2 HSO3 (aq) - I2(aq) + 2 HSO4 (aq) + H20m) Given: 103 (aa) + 3 HSO3 (aq) l'(aq) + 3 HSO4 (aq) AH°rxn= +463 kJ/mol 103 (ag) + 6 H* (aq) + 5 l(ag) 3 Iz(aq) + 3 H200 AH°, rxn= +328 kJ/mol 2 1 (ag) + HSO4 (aq) +2 H*(ag) → I2(aq) + HSO3 (aqg) + H20o AH rxn= -332 kJ/mol 562 kJ/mol 934 kJ/mol O 1123 kJ/mol O 467 kJ/mol
- Identify the acid and the conjugate acid in the following chemical equation: PO4-3(aq) + HC2O4-1(aq) ⟷ HPO4-2 (aq) + C2O4-2(aq) The acid is PO4-3(aq), the conjugate acid is C2O4-2(aq). The acid is HC2O4-1(aq), but there is no conjugate acid. The acid is HC2O4-1(aq), the conjugate acid is HPO4-2(aq). The acid is HC2O4-1(aq), the conjugate acid is C2O4-2(aq). The acid is PO4-3(aq), the conjugate acid is HPO4-2 (aq).Oxalic acid ionizes in two stages in aqueous solution: H2C2O4(aq) + H2O(€ )2H;0* (aq) + HC2O4 (aq) Kal = 5.9 × 10² HC,O, (aq) + H,O(e)2H;0*(aq) + C20?¯(aq) K22 = 6.4 × 10-5 Calculate the equilibrium concentrations of C¿O²¯, HC,O, H,C,O4, and OH- in a 0.10 M solution of sodium oxalate (Na,C¿O4).When CH3NH2 is placed in water, which equilibrium reaction occurs? O CH3NH2(ag) H30* + H2O) → CH3NH + OCH3NH2(aq) + H20) → CH4(g) + NH2OH(aq) O CH3NH2(aq) + H2O → CH3NH3* + OH CH3NH2(aq) + H2O → CH3NH + H3O* CH3NH2(aq) → CH3* + NH2"
- 7. 2 Cro2?(aq) + 2 H* (aq) = CrO² (aq) + H2O Yellow AH° =-14 kJ/mol Orange Consider the equilibrium given above and predict the direction that the equilibrium will shift upon the (a) Addition of HCI (aq). Give reasons for your prediction. (b) Addition of NaOH(aq). Give reasons for your prediction. (c) Addition of BaCl2(aq). Give reasons for your prediction. (d) Temperature rise. Give reasons for your prediction.Question 14 Consider a reaction for which the pKabH of the reactant base is 6.0 and the equilibrium constant for the reaction of the reactant base with the reactant acid is 2.0 x 10-6. Given this information, what is the pK₂HA of the reactant acid? Enter your answer to the nearest tenth.Given the following equations and Ke values, find the value of K, for the overall reaction at the bottom. 2A(aq) 2B(aq) + C(aq) Kc = 5 3F (aq) C(aq) Kc = 5.10³ F(aq) + 2B(aq) = D(aq)Kc = 10 2A (aq) + 4B(aq) = 3D (aq) 4
- Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water: C6H5COOH (aq) + H2O (l) C6H5COO- (aq) + H3O+ (aq) The pKa of this reaction is 4.2. In a 0.62 mol L^-1 solution of Benzoic acid, what percentage of the molecules are ionized? Express your answer to two significant figures and include appropriate units.Based on the data in the table below, which of the following is the strongest base? Organic Acid Formic acid (HCOOH) K, pK, 1.8 X 10 4 3.74 Acetic acid (CH;COOH) 1.8 X 105 4.74 Propanoic acid (CH3CH2COOH) Ascorbic acid (vitamin C) 1.3 X 10 5 4.89 7.9 X 10 5 4.10 OCH;COONA O The conjugate base of ascorbic acid OHCOONa O CH;CH2COONAWhat is the effect of cooling the following reaction? 2 A (aq) + B (aq) ⇆ 3 C (s) + D (g) + 20.0 kcal a. shift left b. no shift c. shift right What is the effect of cooling the following reaction? 2 A (aq) + B (aq) ⇆ 3 C (s) + D (g) + 20.0 kcal a. shift left b. no shift c. shift right Based on the equilibrium constants below, which reaction is the most product favored? a. Keq = 3.4 x 10 - 7 b. Keq = 9.4 x 10 - 9 c. Keq = 8.4 x 10 - 5 d. Keq = 7.4 x 10 - 3 What is the effect of adding more C to the following reaction? 2 A (aq) + B (aq) ⇆ 3 C (s) + D (g) + 20.0 kcal a. no shift b. shift left c. shift right Which causes the equilibrium constant (Keq) to change in the…