資訊推薦

• 12. Which of the following ions are aromatic species? (A) I and III (B) II and III(C) II and IV (D)
• 7.Which of the following condition is not for real gas?(A) high pressure(B) high temperature(C) low
• 8.Which of the following statement is not correct for repulsive forces?(A) only significant when mol
• 9.The molar volume of a perfect gas at 500 K and 100 bar is 0.416 .The molar volume of CO2 under the
• 7. At 25°C, what is the pH of 1 x M NaOH aqueous solution?(A)4(B)7 (C)10 (D)12 (E)14
• 42. 將銅球投入盛水量筒內，筒內之水多出10 cm3，已知銅球密度9 g／cm3，則下列敘述何者正確？　(A) 銅球體積為90 cm3　(B) 銅球質量是10 g　(C) 銅球的質量是90 g　(D
• ◎如附圖，將30公克的白糖倒入90公克的水中完全溶解後，形成糖水溶液，請回答下列第43~44題：【題組】43. 下列關於此糖水溶液的敘述，何者正確？(A)糖水是純物質，有固定沸點　 (B)溶液中的糖稱
• 9. 同樣為參數θ的點估計值(Point estimator)，下列何者符合估計值 具備有效性(Efficiency)的敘述?(A) (B) (C) (D)
• 29.若要完成如【圖 29】左側圖形，其右側圖形應使用何種指令最為快速？ (A)複製(B)鏡射(C)移動(D)陣列
• 13. Rank the following compounds in order of decreasing reactivity to aromatic electrophilicbrominat
• 14. Where would the compound shown below undergo bromination with Br2/FeBr3? (A) ortho/para position
• 8. What is the percent dissociation of 0.5 M acetic acid at 25°C ?(at 25°C acetic acidKa= )(A)0.2% (
• 【題組】44. 關於所形成的糖水濃度，下列敘述何者錯誤？　(A)如果再加入糖，仍能完全溶解，則糖水的濃度變大　(B)此糖水濃度為20％　(C)如果再加水混合，糖水濃度變小　(D)如果將糖水加熱使水蒸發
• ◎政浩想測量某溶液的密度，使用天平和量筒進行測量，實驗結果如表，依表回答下列第45~46題：【題組】45. 量筒的質量為多少公克？(A)15.0 (B)17.5 (C)20.0 (D)5.0
• 15. In the Friedel-Crafts alkylation of benzene, dialkylation is often a significant by-product.In t
• 16. What is the IUPAC name of the following compound? (A) 3-bromo-2-methylcyclohexene(B) 1-bromo-2-m
• 30.若要完成如【圖 30】左側圖形，其右側圖形應使用何種指令最為快速？ (A)複製(B)鏡射(C)移動(D)陣列
• 9. At 25°C, which of the following substance has an standard enthalpy of formation equal tozero ?(A)
• 10. Which of the following is the electron configuration for an atom of sulfur?(A)1s22s22p63s23p4(B)
• 11. Which of the following is the electron configuration for an atom of Iron?(A)1s22s22p63s23p6 4s23
• 12. An aqueous solution is prepared by adding 50.0 mL of 0.050 M HBr aqueous solution to150.0 mL of
• 10.The temperature at which the properties of the real gas coincide with thoseof the perfect gas as
• 11.The critical temperature of O2 is 154.8 K. At which temperature that O2 cannot be liquified by co
• 12.About the van der Waals equation, which statement is incorrect?(A) is the approximate equation of
• 13.Gibbs energy always increases when the pressure of the system is increasedat constant temperature