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- The iron content of an organometallic compound was determined by treating a 0.4873-g sample with nitric acid and heating to volatilize the organic material. After ignition, the residue of ferric oxide was found to weigh 0.2212 g. (a) What is the %w/w Fe in this compound? The carbon and hydrogen in a second sample of the compound were determined by a combustion analysis. When a 0.5123-g sample was carried through the analysis, 1.2119 g of carbon dioxide and 0.2482 g of water were collected. (b) What are the %w/w C and %w/w H in this compound? (c) What is the compound’s empirical formula?. Multi Line Text.1) Compound 3-chlorobenzoic acid can be prepared from methylbenzene through a two- steps reaction. chemical equations for the reactions ? 2) 2 C12 (g) + 2 H20 (g) = 4 HCI (g) + 02 (g) Ac 2 HCI (g) + 1/2 02 (g) = C12 (g) + H20 (g) Ac' relationship between Ac and Ac' ? 3) Hydrogen iodide, HI decomposes 2HI (g) = H2 (g) + 12 (g) AH < 0 -2.00 atm of HI placed in a glass - allowed to reach equilibrium a) Ap for the reaction if 30.0% of HI decomposes ? b) the concentration of HI(g) will increase, decrease or remain the same when the temperature of reaction is increased ?(a) A sample of aspirin (acetyl salicyclic acid) of molecular mass 180, on analysis was found to contain60% carbon, 4.4% hydrogen and 35.6% oxygeni.Determine the empirical formula of aspirinii. What is the molecular formula of aspirin?iii. State the technique that can be used to determine the molecular weight of aspirinb) i. Given the structure of all the isomers of a compound with molecular formula C3H6Cl2ii. Which structure(s) in b(i) is(are) optically active?
- Write an equation for the reaction of chloroacetic acid (Ka=1.5103) with trimethylamine (Kb=5.9105) . Calculate the equilibrium constant for the reaction. If 0.10 M solutions of these two species are mixed, what will be their concentrations at equilibrium?(b) Compound L, C4H9BR undergoes the substitution reaction with ammonia, NH3 to form butan-2-amine. The reaction of compound L with magnesium, Mg in ether produced compound M. The hydrolysis reaction of compound L with water, H2O produced compound N. Compound P is produced when compound N reacts with sodium, Na. Sebatian L, C4H»Br menjalani tindak balas penukargantian dengan ammonia, NH3 untuk menghasilkan butan-2-amina. Tindak balas bagi sebatian L dengan magnesium, Mg dalam ether menghasilkan sebatian M. Tindak balas hidrolisis bagi sebatian L dengan air, H2O menghasilkan sebatian N. Sebatian P dihasilkan apabila sebatian N bertindak balas dengan natrium, Na. (i) Draw the structural formula of compounds L, M, N and P. Lukiskan formula struktur bagi sebatian L, M, N dan P. (ii) Name the type of chemical reaction for the formation of compound N.Write a balanced equation for combustion of benzoic acid, C6H5CO2H, to give CO2 and H2O. How many milligrams of CO2 and of H2O will be produced from 4.635 mg of benzoic acid?
- Dodecane C12H26 is burned at constant pressure with 150% excess air. What is the air-fuel for this process.The reaction of NbCl4(THF)2 with pyridine in the presence of a reducing agent gives NbClx(py)y which contains 50.02% C, 4.20% H and 11.67% N. Determine the values of x and y.The following chart summarises analytical procedures that were followed in the course of determining the molecular formula and the structure of an organic compound A and also the results obtained. Study the chart and answer the questions that follow: (a) Briefly describe the chemical procedure for establishing the presence of chlorine in A. (b) Briefly outline the principles of the mass spectrometer involved in using it to determine the molecular mass of A. Hence suggest structures for A, B, C & D
- Please give an explanation and show work step by step: Write a balanced equation for the combustion of benzoic acid, C6H5COOH, to give CO2 and H2 How many milligrams of CO2 and of H2O will be produced by the combustion of 4.635 mg of benzoic acid? Combustion of 732 mg of an unknown organic compound gave 16.432 mg of CO2and 2.840 mg of H2O. (a) Find the wt% of C and H in the substance. (b) Find the smallest integer mole ratio of C:H in the compound.A certain compound was known to have a formula which could be represented as [NICXH,NZ](CIO4)2. Analysis showed that the compound contained 35.7%C and 6.0%H. When Converted to the corresponding thiocyanate, [NICXHYN=](SCN)2, its analysis showed 47.5%C and 7.1%H. Calculate the values of x,y, and zIf you reacted 4.85 g p-toluenesulfonic acid monohydrate with 2.00 g cobalt metal, [Co(H₂O)6](O3SC7H7)2? Give you what would be your theoretical yield in g of answer to two decimal places (no units are required).