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Exams

CH102 General Chemistry, Spring 2018

http://quantum.bu.edu/courses/ch102-spring-2018/contents.html
Office Hours Lecture Summaries Blackboard Grade Book

The Final Exam is Wednesday, May 9, 6–8pm. It will not be given at any other time and failure to take the exam will result in a score of 0 for the exam, so please make end-of-semester plans accordingly.

Here are the locations, topics, and results of lecture exams, lab exams, and the final exam in this course. The duration of each exam may be shortened.

Your are required to abide by the following exam regulations:

We treat cheating with zero tolerance. The consequences of cheating are at a minimum that the score for work on which cheating occurs counts as 0, and a letter detailing the cheating is sent to the student's advisor, the dean of CAS, and placed in the student's academic file. Possible further consequences are referral to Academic Conduct Committee, and additional penalties, including possible expulsion from university.

Bring only your BU ID, a pen (black or blue ink only), and your Texas Instruments TI-30X IIS 2-Line Scientific Calculator (but you must not bring the calculator cover) to the exam room; no electronic devices---cell phones, laptops, tablets, etc.---are allowed.

Please do your exam in black or blue ink only. Please use only the exam paper provided. Scrap paper may not be used. Points will be deducted for answers reported to an incorrect number of significant figures and if proper units are not used throughout each calculation. A periodic table, physical constants, and major formulas will be provided as appropriate. All work must be shown to receive credit.

Lecture exam 1, Monday, February 12. The exam is based on all lecture, ALEKS, and discussion material through Mahaffy et al., chapters 10 and 11. You may use only the Texas Instruments TI-30X IIS 2-Line Scientific Calculator, but you must not bring the calculator cover.

The exam is held in the following locations, 6:30–8:15pm (the exam duration may be shortened). Go to the location below according to the first letter(s) of your last name. The building abbreviations below are here and the campus map is here.

  • Last name starts with A–B, go to LSE/B01
  • Last name starts with C–D, go to PHO/206
  • Last name starts with E–I, go to KCB/101
  • Last name starts with J–L, go to SAR/101
  • Last name starts with M–S, go to CGS/129
  • Last name starts with T–Z, go to CGS/511

Results: The average score for exam 1 was 56.3/100 = 56.3% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 95/100 = 95.0%; 605 people took the exam. Last updated Tuesday, February 13, 2018 07:23:08.

exam 1 results

Lecture exam 2, Monday, March 19. The exam is based on all lecture, ALEKS, and discussion material through Mahaffy et al., chapters 12, 13, and 14. Note that while the exam focuses on the preceding, it assumes the material from exam 1. You may use only the Texas Instruments TI-30X IIS 2-Line Scientific Calculator, but you must not bring the calculator cover.

The exam is held in the following locations, 6:30–8:15pm (the exam duration may be shortened). Go to the location below according to the first letter(s) of your last name. The building abbreviations below are here and the campus map is here.

  • Last name starts with A–B, go to LSE/B01
  • Last name starts with C–E, go to PHO/206
  • Last name starts with F–J, go to CAS/522
  • Last name starts with K–Mi, go to SAR/101
  • Last name starts with Mj–Z, go to LAW Auditorium

Results: The average score for exam 2 was 46.2/100 = 46.2% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 98/100 = 98.0%; 594 people took the exam. Last updated Tuesday, March 20, 2018 08:28:45.

exam 2 results

Lecture exam 3, Monday, April 23. The exam is based on all lecture, ALEKS, and discussion material through Mahaffy et al., chapters 15, 16, and 17. Note that while the exam focuses on the preceding, it assumes the material from exams 1 and 2. You may use only the Texas Instruments TI-30X IIS 2-Line Scientific Calculator, but you must not bring the calculator cover.

The exam is held in the following locations, 6:30–8:15pm (the exam duration may be shortened). Go to the location below according to the first letter(s) of your last name. The building abbreviations below are here and the campus map is here.

  • Last name starts with A–B, go to LSE/B01
  • Last name starts with C–D, go to SAR/101
  • Last name starts with E–N, go to MOR/101
  • Last name starts with O–Sn, go to COM/101
  • Last name starts with So–Z, go to PHO/206

Results: The average score for exam 3 was 47.3/100 = 47.3% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 100/100 = 100.%; 580 people took the exam. Last updated Tuesday, April 24, 2018 07:46:52.

exam 3 results

Overall scores so far, after exam 3. Here is the distribution of overall course scores so far, on a 1000-point scale. These scores are based on lecture quizzes, the first 11 discussion quizzes, the first 6 labs (CH104 and CH116 students are assigned the average CH102 lab scores), and exams 1, 2, and 3. Your overall score so far will be available on Blackboard. The overall score so far will not be updated further.

Note that the overall score so far is not a running total of the points earned in the course. Rather, it is an estimate of what your final score, out of 1000 points, would be if you continued to perform at the same level. This means that if you have received perfect scores on all work so far, your overall score so far would be 1000, and if you have received 50% scores on all work so far, your overall score so far would be 500.

As detailed here, course grades are assigned based on the distribution overall scores at the end of the course. Based on past experience, it is likely that the average overall score will correspond to a grade in the C+ range.

The average overall score so far, after exam 3, is 641./1000 = 64.1% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 951/1000 = 95.1%; 596 overall scores are shown. ast updated Wednesday, April 25, 2018 07:38:28.

Overall scores so far

Lab exam, Monday, April 30.

The exam is held in the following locations, 6:30–8:15pm (the exam duration may be shortened). Go to the location below according to the first letter(s) of your last name. The building abbreviations below are here and the campus map is here.

  • Last name starts with A–F, go to CGS/129
  • Last name starts with G–O, go to MOR/101
  • Last name starts with P–S, go to COM/101
  • Last name starts with T–Z, go to CAS/522

Results: The average score for the lab exam was 41.4/60 = 69.0% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 60/60 = 100.%; 551 people took the exam. Last updated Monday, May 7, 2018 17:23:26.

lab exam results

Final exam, Wednesday, May 9, 6–8:30pm (the exam duration may be shortened). The final exam is based everything covered this semester.

The exam is held in the following locations. Go to the location below according to the first letter(s) of your last name. The building abbreviations below are here and the campus map is here.

  • Last name starts with A–G, go to LAW Auditorium
  • Last name starts with H–K, go to SAR/101
  • Last name starts with L–O, go to COM/101
  • Last name starts with P–S, go to SCI/109
  • Last name starts with T–Z, go to STO/B50

Results: The average score for the final exam was 94.6/150 = 63.1% (shown as the vertical line); the dashed lines mark 1 and 2 standard deviations from the average; the high score was 149/150 = 99.3%; 583 people took the exam. Last updated Thursday, May 10, 2018 05:43:26.

final exam results

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