Skip to content
dibs
Plans & pricing
Menu
You are looking at Summer Session A 2026. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 246 sections for Summer Session A 2026, read about 2 months ago. Separately, it has finished 400 of the 3,617 courses on its current checking list for this term. Future-term coverage is incomplete, so a course with nothing here may simply not have been reached yet. Back to Fall 2026

CHEM 30B

Organic Chemistry II: Reactivity, Synthesis, and Spectroscopy

4 units

Lecture and discussion.

Summer Session A 2026: 1 lecture and 3 discussions. Nothing here is open. The oldest of these readings was about 2 months ago.

See sections

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 OW, FRANKLIN P, across recorded terms. The course summary above includes all professors.

  • A+ 63 · 8.7%
  • A 120 · 16.5%
  • A- 208 · 28.6%
  • B+ 91 · 12.5%
  • B 79 · 10.9%
  • B- 55 · 7.6%
  • C+ 51 · 7.0%
  • C 26 · 3.6%
  • C- 21 · 2.9%
  • D+ 5 · 0.7%
  • D 3 · 0.4%
  • D- 2 · 0.3%
  • F 3 · 0.4%
  • NP 2 of 734
  • I 5 of 734

Percentages are of the 727 letter grades. Grey bars are non-letter outcomes: no-passes (NP) and incompletes (I).

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.

By instructor

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor Predicted GPA Raw n Terms A range Workload Summer Session A 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 Closed by the department
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.

Reviews for CHEM 30B

Workload and assignments

Reported assignments across instructors and terms. This term's syllabus may differ.

No assignment details are available in this review summary. Based on 180 reviews; source checked about 1 month ago. Missing details do not mean there are no papers or exams. Check the current syllabus.

Read reviews on BruinWalk

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 Summer Session A 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.

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 Summer Session A 2026

Choose an open discussion to enroll; an open lecture alone does not mean a seat is available.

Seat counts as of : the oldest of these 4 readings. That term is over, so nothing has moved since.

  • Lec 1

    MWF 12:00pm-1:50pm

    Closed by the department

    Lecture: 151 enrolled

    Ow, F.P.

    3.30

    Predicted GPA

    Historical records for OW, FRANKLIN P; 727 letter grades
    -
    3 discussions, none open. No waitlist listed.Every discussion, with its time and seats: 3 discussions
    • Dis 1A

      MW 2:00pm-2:50pm · Online

      Closed by the department

      52 enrolled

    • Dis 1B

      MW 3:00pm-3:50pm · Online

      Closed by the department

      48 enrolled

    • Dis 1C

      MW 2:00pm-2:50pm · Online

      Closed by the department

      51 enrolled

Final enrollment, averaged across each term's sections: between 137 and 257 a term over 9 terms, summer excluded, most recently 257 in Fall 2025. That is the shape across years, not this term, which is above.

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.

No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.

Looking for more perspectives?

External reviews are separate and do not count toward the dibs rating.

Read reviews on BruinWalk

Community guidelines

Seats over time in Summer Session A 2026

How each lecture has filled since dibs first saw it.

A dot is a reading where something moved: the seat count, the status, or the waitlist.

What a flat run means, and where a line starts

Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.

Lec 1 · Ow, F.P. · 151 enrolled

Unchanged over 2 minutes

Both readings say 151 seats.

2 Sep 03:052 Sep 03:06
1 hour plotted. dibs read it.Seats from 2 Sep 03:05 to 2 Sep 03:06, 151 to 151. Recorded enrollment counts match. Checks are not continuous monitoring. Changes between checks may be missed.
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.