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- For the past 10 years, the unsaturated hydrocarbon 1, 3-butadiene (CH2 = CH - CH = CH2) has ranked 38th among the top 50 industrial Chemicals. It is used primarily for the manufacture of synthetic rubber. An isomer exists also as cyclobutene: The isomerization of cyclobutene to butadiene is first-order and the rate constant has been measured as 2.0104s1 at 150 C in a 0.53-L ?ask. Determine the partial pressure of cyclobutene and its concentration after 30.0 minutes if an isomerization reaction is carried out at 150 C with an initial pressure of 55 torr.There are two molecules with the formula C3H6 Propane, CH3CH = CH2, is the monomer of the polymer polypropylene, which is used for indoor-outdoor carpets. Cyclopropane is used as an anesthetic: When heated to 499 C, cyclopropane rearranges (isomerizes) and forms propane with a rate constant of 5.95104s1. What is the half-life of this reaction? What fraction of the cyclopropane remains after 0.75 h at 499 C?Use the data provided to graphically determine the order and rate constant of the following reaction: SO2CI2SO2+CI2 Time(s) 0 5.00103 1.00104 1.50104 [SO2CI2] (M) 0.100 0.0896 0.0802 0.0719 Time(s) 2.50104 3.00104 4.00104 [SO2CI2] (M) 0.0577 0.0517 0.0415
- The reaction of CH;OH and HBr is believed to proceed by the mechanism: ki CH:OH +H+ = CH:OHz* k1 Elementary Step 1: (Fast pre-equilibrium) Elementary Step 2: k2 CH;OH2* + Br- 5 CH;Br + H2O (Slow) (а) What is the stoichiometric overall equation for the reaction? (b) What is the intermediate in the proposed mechanism? (c) Derive the rate law predicted by this mechanism. Show your working out.what is the mechanism arrows and the intermediates?Identify the overall reaction for the following mechanism. Step 1: NO + NO ⇌ N2O2 Step 2: N2O2 + O2 2NO2
- Identify the mechanism(s) the reaction will undergo.Benzoyl peroxide (C14H10O4) is widely used in acne treatments. It degrades by 1st-order kinetics and has a half-life of 9.8×103 days at 25 °C.(a) What is the rate constant for this reaction at 25 °C? (b) How many years will it take for 10% of the benzoyl peroxide to degrade?The following mechanism is proposed: C6H5COOH ⇌ C6H5CO2H2+ (fast) C6H5CO2H2+ ⇌ C6H5CO+ + H2O (fast) C6H5CO+ + HX + H2O ⟶ C6H6NH2 + N2 + CO2 (slow) The overall rate constant for this reaction is 0.200x 10-3L mol-1 s-1. Is this value consistent with rate law r = kobs*[C6H5COOH]*[HX] ?
- Under certain conditions, the reaction 3 A+ 4B 5C is observed to proceed at a rate of 0.0275 M s ¹. What is the corresponding rate of change in product C?it is known that a drug has a first order elimination rate constant of 0.17 h-1. If this drug is administered via a constant rate IV infusion, how long does it take for the plasma drug concentration to reach a steady state?The reaction of CH;OH and HBr is believed to proceed by the mechanism: ki Elementary Step 1: CH:OH + H+ = CH:OH2* k1 (Fast pre-equilibrium) Elementary Step 2: k2 CH;OH2* + Br- 3 CH3B1 + H2O (Slow) (a) What is the stoichiometric overall equation for the reaction? (b) What is the intermediate in the proposed mechanism? (c) Derive the rate law predicted by this mechanism. Show your working out.
