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Why are E2 reactions important to chemistry?
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- 4 Why would the chemical equation 1 B2(CO3)3 →1 B2O3+3 CO2 be considered “wrong”?How do I mathematically express this reaction in terms of QcThe acid-catalyzed hydrolysis of sucrose, C12H22O11 + H₂O + H+ -> C6H12O6 + C6H12O6 + H+ is known as "inversion of sucrose" because the angle, a, by which the solution rotates polarized light changes from positive to negative as the reaction proceeds (data from 30 degree C): t/hr a 0 78 2 71 4 12 18 24 42 65.10 44.60 32.40 22.45 2.30 48 -1.96 61 -9 86 95 -15.80 -17.25 -21.15 ∞ Use this data to show that the reaction is first order and determine its rate coefficient (at 30 degree C).
- 2. Platinum and other group 10 metals often act as solid phase hydrogenation catalysts for unsaturated hydrocarbons such as propylene, CH3CHCH2. In order for the reaction to be catalyzed the propylene molecules must first adsorb onto the surface. In order to completely cover the surface of a piece of platinum that has an area of 1.50 cm² with propylene, a total of 3.45 x 10¹7 molecules are needed. Determine the mass of the propylene molecules that have been absorbed onto the platinum surface.What is the Qc value for this equation? Which direction will the reaction shift? Given: CO(g)+H2O(g)=CO2(g)+H2(g) Kc = 1.0 • [CO2(g)]= 2.0M • [H2(g)]= 2.0 M • [CO(g)]= 1.0 M • [H2O(g)]= 1.0 MC5H8 + 7O2 → 5CO2 + 4H2O type of reaction
- What is the purpose of the hexane in the halogen displacement? Intowhich layer (water or hexane) would the following species reside?Cl‐, I2, Cl2, Br‐, I‐, Br2(3) Evaluate the following uses of catalysis in terms of the goals of green chemistry (it is up to you if you want to refer to the 12 Principles or just the more general goals proposed by Dr. Lipke). Identify benefits as well as possible downsides. 2 a. A catalytic process that uses O, to oxidize an organic substrate dissolved in hexanes as a solvent, replacing a previous process that required the use of pyridine-N-oxide as an oxidant. b. A catalytic process that allows organic plant matter to be broken down into small organic molecules that can be used to produce fuels and fine chemicals that would otherwise be made from petroleum. c. A catalytic process that uses a mercury salt to catalyze the oxidation of methane to a methanol derivative, circumventing 2 a more traditional route using H, and CO to produce methanol as an intermediate.5
- What is the E-factor for a synthesis that uses a 8.00 kg reaction mixture to generate 6.00 kg of desired product and 2.00 kg of waste?2. In an aqueous medium, should the rate of reaction of covalent compounds be faster or slower than for ionic compounds? Explain in your own words.Which reactions lead to the production of NO2 without loss of ozone and therefore led to growth in ozone?