Appendix 19. Final Exam Template
Học phần CH2020
VIỆN KT HÓA HỌC
Technical Writing and
Presentation
Đề thi số: 01
Chữ ký của
CBGD
(Kiểm tra cuối kỳ 20193)
90 phút)
Ký duyệt
(Thời gian làm bài
Họ và tên sinh viên:_____________________Mã số sinh viên:_____________
Part 1. Headings
Directions: The given headings are not clear and concise. Four students give different ideas to
edit the heading. Select the correct one. Then mark the letter (A), (B), (C), or (D) on your
answer sheet.
Questions 1 – 10 refer to the following headings.
1. Refining acid benzoic by recrystallization method
(A) The refining of acid benzoic by recrystallization method
(B) The refining of acid Benzoic by the recrystallization method
(C) Refining of benzoic acid by the recrystallization method
(D) The refining of benzoic acid by recrystallization method
Part 2. Classification of information
Directions: Each sentence in the texts below is numbered. Classify the information that each
sentence conveys. Then mark the letter (A), (B), (C), or (D) on your answer sheet.
Questions 11 – 16 refer to the following Introduction.
Introduction
(1) Acetanilide is an odorless and colorless solid that is used in organic synthesis and
pharmaceutical chemistry. (2) For such applications, acetanilide should be refined to its pure state.
(3) One of the commonly used methods for chemical purification is recrystallization. (4) This
method bases on the marked difference in the solubility of substances. (5) The current experiment
aimed to refine an acetanilide sample by the recrystallization method. (6) The sample was dissolved
in a heated water-ethanol solution. (7) After complete dissolution, the resulting solution is filtered
and cooled down in two conditions, at room temperature and surrounded by ice. (8) The solid
crystals formed from these two conditions were filtered, washed, and dried at 80 degrees Celsius.
(9) The refining efficiency was 76 percent, which was under the desired yield.
11. Sentence (1).
(A) Scientific background
(B) Objectives
(C) Method
(D) Results
Questions 17 – 20 refer to the following Discussion.
Discussion
(10) Two analysis methods did not give an identical result, but the difference is quite small. (11)
As shown in Table 1, the average consumption of the 0.05 M AgNO3 solution in the Morh's method
was 10.87 mL, whereas that in the adsorption indicator method was 10.97 mL. (12) The molar
concentration of sodium chloride was 0.05435 and 0.05485, respectively. (13) Since the difference
between these data is only 0.95%, we can use either of the obtained molar concentrations for other
purposes.
17. Sentence (10).
(A) Evidence
(B) Example
(C) Explanation
(D) None of the above
Part 3. Use of verb tense and verb form in the Methodology section
Directions: Convert the instruction in a lab manual to the description of an experiment. Four
options are given below each sentence. Select the best one. Then mark the letter (A), (B), (C),
or (D) on your answer sheet.
Questions 21 – 30 refer to the following texts.
21. Use a pipette to take and transfer 25 mL of distilled water into a dry test tube.
(A) Use a pipette to take and transfer 25 mL of distilled water into a dry test tube.
(B) A pipette use to take and transfer 25 mL of distilled water into a dry test tube.
(C) A pipette was used to take and transfer 25 mL of distilled water into a dry test tube.
(D) A pipette used to take and transfer 25 mL of distilled water into a dry test tube.
Part 4. Completion of tables and graphs in the Results section
Directions: The following tables and graphs come from lab reports submitted this semester.
Determine the missing information. Then mark the letter (A), (B), (C), or (D) on your answer
sheet.
Questions 31 – 35 refer to the following tables and graphs.
31. The missing information include
(A) Axis title(s), caption, and unit(s)
(B) Axis title(s), dimension, and unit(s)
(C) Unit(s) and scale bar(s)
(D) Axis title(s) and unit(s)
Figure 1. The temperature dependence of the
miscibility of phenol in water.
Part 5. Text completion
Directions: The following paragraphs come from the Discussion section of a lab report. Write
a topic sentence that is missing and fill in each of the remaining blanks with an appropriate
word or phrase from the suggested list.
Questions 36 and 41 refer to topic sentences.
Questions 37 – 40 and 42 – 45 refer to the following texts.
Discussion
(31)…………………………………………………………………………………………….
………………………………………………………………………………………………....
………………….. In a strong alkaline environment, β-naphtholate salt is (32)……………..
into β-naphthol, which cannot dissolve, (33)……………. to difficulties in the diazotization
reaction. On the other hand, diazonium salts (34)……………. in a strong alkaline
environment. Therefore, the experiment must be (35)…………….. out in a weak acidic or a
weak basic environment.
(A) leading
(E) transform
(I) decomposing
(B) decompose
(F) transformed
(J) carrying
(C) lead
(G) carried
(D) decomposed
(H) carry
Note:
3.5 points for each of questions 36 and 41
1 point for each of other questions