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- ΚΗ Consider the following reaction which has the observed kinetic isotope effect = 1.5. kD Cy2 "PH Δ Cy2 -PI...pt + -P Cy2 Cy2 A) Draw a mechanism for this reaction and identify the type of reaction which is occurring.Derive the rate law (d[N2O5]/dt) using Steady-State Approximations N2O5 = NO2 + NO3 (K1) NO2 + NO3 = N2O5 (K-1) NO2 + NO3 = NO2 + O2 + NO (K2) NO + N2O5 = 3NO2 (K3)NH4+ {aq) + NO2(aq) -> N2(g) +2H2O{l} Data Initial [NH4+] Initial [NO2-] rate 1 0.0100 0.200 5.4 x10-7 2 0.0200 0.200 10.8x10-7 3 0.0400 0.200 21.5x10-7 4 0.200 0.0202 10.8x10-7 5 0.200 0.0404 21.6x10-7 6 0.200 0.0808 43.3x10-7 Find x,y,k
- The protein calcineurin binds to the protein calmodulin with an association rate of 8.9 x 103M-1s-1and an overall dissociation constant, Kd, of 10 nM. Calculate the dissociation rate, kd, including appropriate units.2. Czarnowski and H.J. Schuhmacher (Chem. Phys. Lett. 17, 235 (1972)) suggested the following mechanism for the thermal decomposition of F2O in the reaction 2 F20(g) → 2 F2(g) + O2(g): 1) F2O+ F2O →F+OF + F2O : ka ko ke kd 2) F+F20 → F2 + OF: 3) OF + OF → 02 + F + F : 4) F+F+ F2O→ F2 + F2O: Use the steady-state approximation to find the rate law of this reaction.ΚΗ Consider the following reaction which has the observed kinetic isotope effect = 1.5. kD CY2 CY2 P -P....pt + + Cy2 Cy2 A) Draw a mechanism for this reaction and identify the type of reaction which is occurring.
- The mechanism for the reaction described by nust. A common d(a stronger whch ont of ice prhct NO,(g) + CO(g) → CO,(g) + NO(g) coor on be c is suggested to be (1) 2NO,(g) –→ NO,(g) + NO(g) k1 -> k2 (2) NO,(g) + CO(g) → NO,(g) + CO,(g) d[CO2] k[NO2]? %3D The experimental rate law for the production of [CO2] = k1 [NO2J² or dt d[NO3] 0 ), is this a valid mechanism? i.e show Assuming that [NO3] is governed by a steady state ( dt that using elementary reactions 1 and 2, the experimental rate law can found. (Hint write out all the ways d[NO3] = ? d[C02] = ? ) %3| and %3D dt that [NO3] and [CO2] are created and destroyed, dt owing clecre cel at 25 C NiC C)Cu a062 0.62 V 0.00 V 4. 460 VGivena reaction 2A + B---> C + 2D which is found to be second order in a and independent of B, is the proposed slow step of the mechanism 2A--> D + E consistent with the experimental data? I don't think so, but i would like confirmation.The first-order rate constant, k1, for the decomposition of ampicillin at pH 5.8 and 35?C is k1 = 2 × 10-7 sec-1. The solubility of ampicillin is 1.1 g/100 mL. If it is desired to prepare a suspension of the drug containing 2.5 g/100 mL, calculate the zero-order rate constant, k0, and the shelf-life, that is, the time in days required for the drug to decompose to 90% of its original concentration (at 35?C) in solution. Note: 100 mL = 1 deciliter = 1 dL.
- Given the transition state diagram(s) below, identify the mechanism(s) of catalysis. Mg2+ Mg2+ H OH H-C-H HOH H H - (M₂C)N= H H-C-H HO -H H- HO -H OH-O -O-H- H-N(CH₂) CH₂OH H H₂C H H LN (CH2) H OH HOH:N (0³H)² CH₂OH H₂C tBrO3 (aq) + 6H*(aq) + 91 (aq) -> Br(ag) + 313 (aq) + 3H2O) A CHM 126 student performed the above reaction and collected the data below: Trial Rate [BrO3 ] [H*] # 1 # 2 0.01447 M/s 0.0120 M 0.040OM 0.00396 M/s 0.0120 M 0.0200 M 0.00600 M M 0.00600 M Using the above data, what was the measured order of the reaction (with three decimal places) for [H ]? Type your answer in the space below with three decimal places (as an example: x.xxx).Explain the Characteristics of the SN1 Mechanism ?
