2. When a solution of 0.1 M Na₂CO₃/0.1 M NaHCO₃ (H₂CO₃: K_a1 = 4.2 x I0-7 and Ka₂ = 4.69 x I0^-11) is titrated with 0.1 M HCl. Which one is the titration curve?
(A)
(B)
(C)
(D)
(E)

28. What is the structure of this passage? (A) A problem-solution structure illustrating the earthquake’s challenges and the architectural solutions employed. (B) A chronological narrative detailing Taipei 101’s preparations before, during, and after the earthquake. (C) An introduction followed by a detailed examination of Taipei 101's design and concluding with reflections on engineering practices. (D) A general overview explaining how the engineering advancements precisely predict the impact of severe earthquakes.

29. How does the tuned mass damper in Taipei 101 function to dissipate seismic energy? (A) By enhancing the structural integrity of the building's core (B) By providing deep foundational support to the building (C) By ensuring adherence to anti-seismic building codes (D) By resonating at the same frequency as the structure but with slight variations

30. What is the primary message conveyed in the passage about the resilience of high-rise buildings in the face of natural disasters? (A) The resilience of high-rise buildings is primarily determined by their adherence to strict seismic building codes. (B) Ongoing research and physical testing are crucial for improving the resilience of high-rise buildings worldwide. (C) Advancing engineering techniques, such as the use of tuned mass dampers, is key to building resilient high-rise structures. (D) Reinforced concrete construction is the most effective approach for ensuring the resilience of high-rise buildings.

1. Please determine the more stable anion in each of the following cases: (i), (ii), and (iii). (A) a, c, f (B) a, d, f (C) b, d, f (D) b, d, e (E) a, c, e

3.The relative initial rates of the reaction X2 + Y2 →products in vessels (a)-(d) follow a ratio of 1:8:2:16. Unshaded spheres depict X2 molecules, while shaded spheres represent the presence ofY2? molecules at the start of the reaction. What is the overall order of reaction? (A)l (B)2 (C)3 (D)4 (E)5

4. Michaelis and Menten assumed that the overall reaction for an enzyme-catalyzed reaction could be expressed as: Based on above reaction, the rate of breakdown of the enzyme-substrate complex can be described by the expression: (A) k1([Et]-[ES]) (B) k1([Et]-[ES])[S] (C)k2[ES] (D) k-1[ES]+k2[ES] (E)k-1[ES]

5. Which one is not an input transducer? (A) Mass analyzer (B) Glass-calomel electrode (C) Electron multiplier (D) Photomultiplier tube (E) Photodiode

6. Please identify the meso compound(s) in the given chemical structures (I), (II) and (III). (A) I only (B) II only (C) III only (D) I and III only (E) I, II, and III

7. What is the volume of a cube (V=L3) with the side length of 2.0 ± 0.2 cm? (A) 8.0 ± 0.008 cm3 (B) 8.0 ± 0.2 cm3 (C) 8.0 ±0.6 cm3 (D) 8.0 ± 1.4 cm3 (E) 8.0 ± 2.4 cm3

8. Please write the IUPAC name for the compound presented below. (A) 2-propy 1-3-methylbutane (B) 4-isopropylpentane (C) 2-isopropylpentane (D) 5,6-dimethylhexane (E) 2,3-dimethylhexane