CHEM 30B
Organic Chemistry II: Reactivity, Synthesis, and Spectroscopy
Grades
3.22
Average grade awarded in CHEM 30B. Not a student rating: this is what the grades were.
In the A range
52%
of the 2,170 letter grades
D, F or W
5.9%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
1%
5 of 15 students passed
The registrar's own records: 2,170 grades over 13 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
4 of those terms are summer sessions, and summer sessions are counted here.
The table below splits them, and term averages across those 13 terms ran 2.78 to 3.70.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 155 · 7.1%
- A 555 · 25.6%
- A- 421 · 19.4%
- B+ 261 · 12.0%
- B 198 · 9.1%
- B- 153 · 7.1%
- C+ 120 · 5.5%
- C 94 · 4.3%
- C- 88 · 4.1%
- D+ 45 · 2.1%
- D 25 · 1.2%
- D- 30 · 1.4%
- F 25 · 1.2%
- P 5 of 2,199
- NP 10 of 2,199
- I 10 of 2,199
- NR 1 of 2,199
- DR 3 of 2,199
Percentages are of the 2,170 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), incompletes (I), no report (NR), and withdrawals (DR).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
Withdrawals are the exception to "excluded": DR is not scored, but it IS counted in the D, F or W figure above, which is reported over the letter grades plus the withdrawals. Pass/no pass and S/U outcomes are outside that figure on both sides.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Spring 2026 |
|---|---|---|---|---|---|---|---|
| PHAM, HUNG VIET reviews ↗ | 2.96 | 2.95 | 730 | 4 | 40% | light | not teaching it |
| OW, FRANKLIN P reviews ↗ | 3.30 | 3.31 | 727 | 4 | 54% | very light | not teaching it |
| DEIFEL, NICHOLAS reviews ↗ | 3.55 | 3.58 | 228 | 2 | 71% | - | not teaching it |
| REILLY, AMBER reviews ↗ | 3.11 | 3.10 | 221 | 1 | 52% | - | not teaching it |
| RUBIN, YVES F reviews ↗ | 3.66 | 3.70 | 198 | 1 | 74% | average | not teaching it |
| REILLY, AMBER JAYNE reviews ↗ | 2.97 | 2.90 | 66 | 1 | 39% | - | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.
dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 180 reviews 26 days ago. That is the reviewers being silent, and not a course that sets no work.
What comes first
The chain dibs can see is 2 courses long before CHEM 30B. Read from Fall 2026, because dibs has not read a class page for CHEM 30B in Spring 2026 and a department can change what it requires. This is a floor, not a deadline: dibs has not read a class page for CHEM 20B, so the real chain can only be longer than this, never shorter.
Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.
In Springs
Has not run in Spring in the 4 Springs dibs holds records for, back to Fall 2021. That is 4 years of grade records rather than the course catalog, so it says what has happened and not what the department will do next.
From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Enforced requisite: course 30A or 30AH, with grade of C- or better. Second term of organic chemistry for Chemistry, Biochemistry, and engineering majors. Properties, synthesis, and reactions of alcohols, ethers, sulfur compounds, aldehydes, ketones, carboxylic acids, and carboxylic acid derivatives. Organometallic compounds. Organic spectroscopy, including mass spectrometry, infrared spectroscopy, and proton and carbon nuclear magnetic resonance spectroscopy. P/NP or letter grading.
Sections in Spring 2026
From the people who took it
Student reviews
What taking CHEM 30B was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
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