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what is solution homogenous catalysis?
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- Why does the collision gas have to be inert?C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l)ΔH = –2802.7 kJ mol –1a) Write an expression for the equilibrium constant for this reaction.b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium.c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction.d) Explain the effect on equilibrium of:i) Increasing temperatureii) Increasing pressureiii) Decreasing the concentration of oxygeniv) Increasing the concentration of carbon dioxidev) Adding a catalyst(a) (c) HO OH 1. BH3 2. H₂O₂, NaOH 3. PCC 4. CH3MgBr 5. H3O+ workup Na₂Cr₂O7 H₂SO4, H₂O
- b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction СO(g) +2H2(g) — CHОН (g) At 298.15 K, AH.co (0)= -26.41 kcal/mol, AH AG.co (9)= -32.8079 kcal/mol, AG cH,oh(9)= -38.69 kcal/mol, °.CH20H(9)= -48.08 kcal/mol, The standard heat capacity of various components is given by, CO = a + bT + cT² + dT³, where C, is in cal/mol-K and T is in K b x10² с х105 d x10° Соmponent CH3OH а 4.55 2.186 -0.291 -1.92 CO 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079What is the concentration of SO42-ions in the solution of silver sulphate with a Kçç value of 1.1x10-5 at 25 ° C?Silver sulphate dissolves in water according to the following reaction.Ag2SO4 (k) ...........> 2 Ag+ (aq) + SO42-(aq) A 1.5 L solution of silver sulfate contains 3 g of dissolved silver sulphate. If extra solid silver sulfate is added to the solution, will it dissolve in the solution? (Ag: 108 g / mol, S: 32 g / mol, O: 16 g / mol)For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. reaction CO(g)+ H₂O(g) → CO₂(g)+ H₂(g) Na₂CO3(s)+H3PO4(aq) → Na₂HPO4(aq) + CO₂(g) + H₂O(1) highlighted atom is being... oxidized reduced O neither oxidized nor reduced 圖∈ Ar
- 1) Use Hess's Law to determine AH for the following target reaction. 3 CO₂(g) + 4 H₂O(g) b) C3Hg(g) + 5 O₂(g) C(s) + O₂(g) -CO₂(g) 2 H₂(g) + O₂(g) 3 C(s) + 4 H₂(g) →→→ 2 H₂O(g) C3H8(g) AH = AH = ΔΗ ΔΗ = ??? -2043 kJ -393.5 kJ -483.6 kJAre the following processes examples of homogeneous or heterogeneous catalysis? a Hydrolysis of immiscible ethyl acetate (l) in an aqueous basic solution. b Conversion of NOX gases to N2 and O2 by platinum metal. c Decomposition of atmospheric ozone by NO gas. d Oxidation of ethyl alcohol, C2H5OH, by the enzyme alcohol dehydrogenase, ADH, to acetaldehyde in the body. e Solid-state conversion of C graphite to C diamond by transition metal additives at high pressure.Amoxicillin is an antibiotic packaged as a powder. When it is used to treat babies and small animals, the pharmacist or veterinarian must suspend it in water, so that it can be administered orally with a medicine dropper. The label says to dispose of unused suspension after 14 days. It also points out that refrigeration is required. In the context of this chapter, what is implied in the latter two statements?
- The normal freezing point of n-octane 1C8H182 is -57 °C. In what temperature range is it a nonspontaneous process?8 Reactions between certain organic (alkyl) halides and water produce alcohols. Consider the overall reaction for t-butyl bromide (2-bromo-2-methylpropane). (CH3)3CBr(aq) + H2O(1) →(CH3)3COH(aq) + H*(aq) + Br "(ag) k[(CH3)3CB1]. The accepted mechanism for the The experimental rate law is rate = %3D reaction is shown below. (1) (CH3)3C-Br(aq) →(CH3)3C*(aq) + Br "(aq) [slow] (2) (CH3)3C*(aq) + H2O(1) →(CH3)3C-OH2*(aq) [fast] (3) (CH3)3C-OH2*(aq) →H*(aq) + (CH3)3C-OH(aq) [fast] a) Why doesn't H2O appear in the rate law? b) Write rate laws for the elementary steps. c) What intermediates appear in the mechanism? d) Show that the mechanism is consistent with the experimental rate law. ed to the of consumption of N2 When 50 cm' of hydrochloric acid of concentration 2.0 mol dm is added to 50 cm' of sodium hydroxide solution of concentration 2.0mol dm, the temperature increase is 13.0°C HCl(aq) + NAOH(aq) + NaCl(aq) + H,O(1) The experiment is repeated using 25 cm of the same hydrochloric acid and 50 cm' of the same sodium hydroxide solution. What is the temperature increase? O A 4.9°C I B 6.5°C I C 8.7°C D 13.0°C