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- 4. The hydrogenation of acetylene (C2H2) on Pd metal sites (*) is proposed to occur via elementary steps consisting of: 1) QE dissociative adsorption of H2; 2) QE molecular adsorption of C2H2; 3) & 4) QE sequential addition of H* to form C2H4*; 5) Ireversible desorption of ethylene. (a) Write the mechanism of the reaction with the stoichiometric number of each step. (b) Derive the rate expression in tems of constants and measurable quantities when CH,* and * are the MARI. If C;H4 is in the MARI expression, why is the rate independent of the concentration of C¿H4 in the gas phase? (c) At some conditions, the experimental rate is zero order in both CH2 and H2. What additional assumption(s) are required for this observation to be consistent with the rate expression derived in part (b)? If, under certain experimental conditions, an effective zero order rate constant is measured, explain the chemical significance of this constant (in terms of rate or equilibrium constants for elementary…explain why? • Levofloxacin is a broad spectrum antibotic. It is reported that itis completely removed in an unchanged from the body and itselimination half life is 7 h. Determine the amount oflevofloxacin eliminated in urine at 10 h following IV bolusadministration of 6,25 mg/kg dose to a patient weighing 80 kg.a. 185,75 mgb. 314,25 mgc. 314,25 mg/kgd. 18,57 mg How long will it take to lose 75% of the administered doseof a drug from the body if the drug follows first orderprocess?a. 3,32 half livesb. 2,32 half livesc. 2.0 half livesd. None of the above+ OH HO + !!!10 HO HOLI > OsO4 (catalytic) NMO
- Activated complex 200 (a) 150 Potential Reactants (b) Energy 100 (c) Products 50 Reaction Pathway Nina claims that the graph shown above represents an exothermic reaction with a AH of +100kJ and that energy will be absorbed during this reaction. Is Nina correct? If not, explain and correct her mistake giving explanation. Format BIU- a FarchCan you show the mechanism (arrows) of the last "decomposition" step with water, ROH, and heat?Define the Mechanisms of Elimination ?
- S Suppose that, in the absence of enzyme, the forward rate constant, kf, for the conversion of S to P is 10-4 s-¹ and the reverse rate constant, kp, for the conversion of P to S is 10-6 s-¹. What is the equilibrium constant, K, and what is the AG°, or standard free-energy change at pH 7, for the uncatalyzed reaction? K = KF 10-45-1 S=P 10-6-1 = Suppose an enzyme enhances the rate of the reaction 100 fold. What are the KF and KR values for the enzyme-catalyzed reaction? K= AGO! $`1 KR || = What are the K and AG' values for the enzyme-catalyzed reaction? = AGO = kJ.mol-¹ 8`1 kJ.mol-1is C （SS or RR） Is D （SS or RR） please show details step by step explainAldolase catalyzes the glycolytic reaction The standard free-energy change for this reaction in the direction written is +23.8 kJ/mol. The concentrations of the three intermediates in the hepatocyte of a mammal are: fructose 1,6-bisphosphate, 1.4 × 10−5 M; glyceraldehyde 3-phosphate, 3 × 10−6 M; and dihydroxyacetone phosphate, 1.6 ×10−5 M. At body temperature (37 °C), what is the actual free-energy change for the reaction?
- What is the mechanism for elimination?ORGANIC CHEMISTRY: Is this mechanism for dibenzalacetone formation complete? arrows and electrons, and formal charges?. If no, please provide the complete mechanism. From this mechanism in the picture, identify the intermediate benzalacetone.What are the principle and basic concepts of ACID FAST CHAIN? (please explain it thoroughly in a lengthy but clear explanation, thank you so much.)