※ [本文转录自 NTU-Exam 看板 #1AfwaFU_ ] 作者: ian60702 (pacific hero) 看板: NTU-Exam 标题: [试题] 97下 黄信炅 普通化学丙 期中考 时间: Wed Sep 9 21:09:32 2009 课程名称︰普通化学丙 课程性质︰系必带 课程教师︰黄信炅 开课学院：工学院 开课系所︰工科海洋系 考试日期（年月日）︰2009/4/11 考试时限（分钟）：150 min以上(老师说写完为止) 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : 1.Perform the following calculations and express the result to the corretct number of significant figures(可用机算机) (a)6.022×10^23 ×105 (b)(1.00866-1.00728)/6.00225×10^23 (c)convert 233K to Fahrenhit degrees. 2.Naming the following compounds (a)Al(Cl)3 (b)(Fe)2(O)3 (c) Mn(OH)2 (d) CsCl(O)4 (e) P(Cl)5 (f) (N)2O (g) HCN (h)H2SO3 (i)HC2H3O2 (j)HClO 3.Write formula fo following compounds (a)potassium iodide (b) lithium hydride (c)sodium hudrogen carbonate (d)mercury(I) chloride (e) sodium chlorite (f) copper(II) nitrate (g)poyassium permanganate (i)hydrogen peroxide (j) nitrous acid 4.Give the balanced equation for each of the following chemical reactions a. solid iron(III) sulfide reacts with gaseous hygrogen chloride to form solid iron(III) chloride and hydrogen sulfide gas b. slid zinc reacts with aqueous HCl to form aqueous zinc chloride and hudrogen gas c.Fe(CN)^4- + Ce^4+ →Ce(OH)+Fe(OH)+CO^2-(碳酸根) + NO^1- 6 3 3 3 5.The concentration of a certain sodium hydroxide solution was determined by using the solution titrate a sample of potassion hydrogen phthalate(KHC8H4O4) In the titration,3.47 mL of the sodium hydroxide solution was required to react with 0.1085 g KHP. Calculate the molarity of the sodium hydroxide. The standardized sodium hydoxide solution was used for analysis of the effluent from in in dustrial process having tetrachloride and benzoidc acid (HC7C5O2)a weak acid that has one acidic hydrogen atom per molecule. A sample of this effluent weighing 0.4818g was shaken with water and the resulting aqueous solution for neutralization.Calculate the mass percent of HC7H5O2 in the original sample. 6.Predict which of the following substances are likely to be soluble in water a.rubidium sulfate b.iron(III)phosphate c.lead(II)_sulfate d.ammonium carbonate 7.A steel cylinder contains equimolar of graphite (pure carbon ) and O2 The mixture is ignited and all the graphite reacts. Combustion produces a mixture of CO gas and CO2 gas.After the cylinder has cooled to its oringinal temperature the pressure of the cylinder has increased by 12%.Calculate the mole fraction of CO,CO2 and O2 in the final gaseous mixture. 8.Consider separate 1.0L gaseous samples of H2 Xe Cl2 and O2 allat STP a. Rank the gases in order of increasing average kinetic energy b. Rank the gases in order of increasing average velocity c. How can separate 1.0L sample of O2 have the same root mean square velocity as that of the H2 samples which is at STP? 9.Use Hess' law to find the change in enthalphy at 25 度 C for the following equation:(试题有给计算所需之化合物反应热) CaC2 + 2H2O→Ca(OH)2 + C2H2(g) 10.亦为赫士定律考题 11.The element Si Ga Al Cd and Se are all used in manufacture of various semiconductor devices. Write the expectecd electron configuration for these atoms. 12.Order the following elementss a. N O F (in terms of ionization energy) b. Ca Sr Ba (in terms of ionization energy) c. S Cl F (in terms of atom size) 13.Use the following data to estimate ΔH for magnesium fluoride f Lattice energy :-3916,first ionization energy of Mg :735, second ionization energy of Mg: 1445, electron affinity of F :-328, Bond energy of F2: 154 , enthalpy of sublimation of Mg: 150 (单位皆为kJ/mol) 14.Write the Lewis structure for each of the following a.NO+ b.NO c.SCl2 d.BeCl2 e. SO4^2- f. ICl4^2- g.HCN h.N2O 15.Predict the mlecular structure for each of the following a.PCl5 b.SO2 c.ICl3 --

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