複選題

14. Which of the following is a conjugate acid-base pair?
(A) HCl/ClO₂^-
(B) H₂PO₄^-/PO₄^3-
(C) NH₃/NH₄⁺
(D) H₂O/OH^-

16. Which of the following is a conjugate acid/base pair? (A)HCl/OCl- (B)H2SO4/SO42- (C)NH4+/NH3 (D)H3O+/OH- (E)none of these

19. Which of the following is a conjugate acid/base pair? (A) HCl/OCl– (B) H2SO4/SO42– (C) NH4+/NH3 (D) H3O+/OH– (E) more than one of these

15. The strong acid HA is added to water. Which of the following is the strongest base in the system? (A) HA (B) A– (C) H2O (D) H3O+

16. Identify the strongest base. (A) CH3O– (B) CH3OH (C) CN– (D) NO3–

17. What concentration of HF (Ka = 7.2×10–4) has the same pH as that of 0.068 M HCl? (A) 0.068 M (B) 0.16 M (C) 6.4 M (D) 0.011 M

18. A calorimeter contains 123 g of water at 27.0°C. A block of metal with a mass of 28 g is heated to 95.8°C and then placed in the water in the calorimeter. After sufficient time, the temperature of the water is measured and found to be 28.8°C. Calculate the heat capacity per gram of metal. Assume no heat is lost to the calorimeter or the surroundings. (A) 2.0 J/g°C (B) 0.12 J/g°C (C) 6.8×102 J/g°C (D) 0.49 J/g°C

19. 75.0 mL of a pure liquid at 245 K is mixed with 100.0 mL of the same pure liquid at 365. K. What is the final temperature of the mixture? (A) 295 K (B) 305 K (C) 314 K (D) 325 K

20. For which process is ΔS negative? (A) evaporation of 1 mol of CCl4(l) (B) mixing 5 mL of ethanol with 25 mL of water (C) compressing 1 mol of Ne at constant temperature from 1.5 atm to 0.5 atm (D) raising the temperature of 100 g of Cu from 275 K to 295 K

21. Which of the following frequencies corresponds to light with the longest wavelength? (A) \( 3.00 \times 10^{11} \text{ s}^{-1} \) (B) \( 4.12 \times 10^{6} \text{ s}^{-1} \) (C) \( 8.50 \times 10^{10} \text{ s}^{-1} \) (D) \( 9.12 \times 10^{11} \text{ s}^{-1} \)

22. In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus, (A) energy is emitted. (B) energy is absorbed. (C) no change in energy occurs. (D) light is emitted.

115年 - 115 國立嘉義大學_轉學生招生考試試題_應用化學系：普通化學#143922

115年 - 115 國立嘉義大學_轉學生招生考試試題_獸醫學系：普通化學#143851

115年 - [無官方正解]115 國立臺灣大學_轉學生招生考試：普通化學(C)#142702

115年 - 115 台灣聯合大學系統_學士班轉學生考試試題_A1：普通化學#142701

115年 - [無官方正解]115 台灣聯合大學系統_學士班轉學生考試試題_A6：普通化學#142699

115年 - [無官方正解]115 國立臺灣大學_轉學生招生考試：普通化學(A)#142644

114年 - 114 臺北醫學大學_寒假轉學入學考試試題：普通化學#145030

114年 - 114 國立嘉義大學_轉學生招生考試試題：普通化學#143941

114年 - 114 國立嘉義大學_轉學生招生考試試題_獸醫學系：普通化學#143721

114年 - 114 臺灣綜合大學系統_學士班轉學生考試試題:普通化學A#138275