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CHEM 30B · Lec 1

Organic Chemistry II: Reactivity, Synthesis, and Spectroscopy

Fall 2026Pham, H.V.4 units

Seats, time, final and grades

Seats

Open, 2 seats left.

241 of 243 enrolled, lecture and all discussions summed.

Meets

MWF 2:00pm-2:50pm

Lecture only. You also attend a discussion, listed below.

Final

Tue 8 Dec, 3:00pm to 6:00pm

One exam for the whole class, Los Angeles time.

Read 22 hours ago.

Grades

2.96
predicted, this instructor · 730 grades

730 letter grades, Pham, H.V..

Read 71 minutes ago. This is a recent reading, not a live seat count.

dibs has seen this section open 3 times since 17 August. The last time was 22 September.

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Before you can enroll

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar limited early, then open

Any student attempting to save or sell a spot for another student is violating Student Conduct Code 102.23d and may be referred to the Office of the Dean of Students. Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m. PTE numbers are NOT available; do not contact the instructor for a PTE number. There will be two MANDATORY midterm examinations from 6 to 7:50 p.m. on Monday, October 19 and Friday, November 20, 2026.

The limit stands until 15 September, and lifts then. dibs still counts this class as one you can take, but not yet.

Restrictions read 22 hours ago.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

9 discussions, 1 open: Dis 1A, T 9:00am-9:50am.

  • Dis 1A

    T 9:00am-9:50am

    Sebastian, A.C.

    Open, 2 seats left.

  • Dis 1B

    T 11:00am-11:50am

    Sebastian, A.C.

    Closed.

  • Dis 1C

    T 3:00pm-3:50pm

    Sebastian, A.C.

    Closed.

  • Dis 1D

    W 9:00am-9:50am

    Pugh, C.

    Closed.

  • Dis 1E

    W 12:00pm-12:50pm

    Pugh, C.

    Closed.

  • Dis 1F

    W 3:00pm-3:50pm

    Pugh, C.

    Closed.

  • Dis 1G

    R 12:00pm-12:50pm

    Das, D.

    Closed.

  • Dis 1H

    F 9:00am-9:50am

    Das, D.

    Closed.

  • Dis 1I

    F 12:00pm-12:50pm

    Das, D.

    Closed.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MWF 2:00pm-2:50pm

Discussions: T 9:00am-9:50am

Young Hall CS76

Grades

2.96
predicted, this instructor · 730 grades

Of the 5 other people in the grade record for CHEM 30B, the 2 with the most grades: OW, FRANKLIN P at 3.30 over 727 grades and DEIFEL, NICHOLAS at 3.55 over 228 grades.

A range
40%
P/NP
1%
D/F/W
11.8%

Full grade history for CHEM 30B

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, light. 3.4 of 5 for Hung Pham, where 5 is lightest. Read 30 days ago.

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.

CHEM 30B reviews for Hung Pham Reviews for all professors of CHEM 30B

Will it still be here

high risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 23521F
  • 15622W
  • 22622F
  • 20023W
  • 23323F
  • 14924W
  • 21024F
  • 13725W
  • 25725F
Enrollment by term: 21F 235, 22W 156, 22F 226, 23W 200, 23F 233, 24W 149, 24F 210, 25W 137, 25F 257

Peak 257 · most recent 25F at 257

Seats over time

Filled by 116 over about 2 months

3 times reopened
241 of 243 · 2 left in its discussions
17 Aug 15:079 Sep 06:491 Oct 22:32
dibs read 168 of the 511 hours its hourly record covers, 33%, and did not look in 343. dibs had no hourly record before 10 Sep, which is the other 577 of 1088 plotted.241 of 243 enrolled at the newest reading, 71 minutes ago, with 2 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 22:32, 125 to 241. dibs read 168 of the 511 hours its hourly record here covers, 33%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 343 hours dibs was keeping a record and did not reach this section. Nothing before 10 September at 16:00, where this section's record starts, has a read either way, which is 577 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 71 minutes ago.

Show the readings (64)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 22:32 241 243 open - 2 of 4
1 Oct 19:02 241 243 open - 7 of 20
1 Oct 00:22 240 243 open - 7 of 21
30 Sep 04:12 242 243 open - 2 of 5
30 Sep 00:02 241 243 open - 2 of 5
29 Sep 20:32 242 243 open - 21 of 68
27 Sep 01:12 241 243 open - 8 of 25
26 Sep 01:12 240 243 open - 15 of 51
23 Sep 23:42 241 243 open - 2 of 4
23 Sep 20:32 242 243 open - 2 of 5
23 Sep 16:42 241 243 open - 8 of 24
22 Sep 17:52 242 243 open - 2 of 4
22 Sep 14:22 241 243 open - 5 of 14
22 Sep 01:12 242 243 open - 2 of 5
21 Sep 21:42 243 243 closed - 4 of 8
21 Sep 14:42 242 243 open - 12 of 35
20 Sep 04:12 243 243 closed - 3 of 8
19 Sep 21:22 242 243 open - 2 of 4
19 Sep 18:02 243 243 closed - 10 of 27
18 Sep 16:12 242 243 open - 5 of 15
18 Sep 02:42 241 243 open - 3 of 7
17 Sep 20:52 240 243 open - 2 of 3
17 Sep 18:12 241 243 open - 7 of 17
17 Sep 02:02 240 243 open - 10 of 29
15 Sep 22:32 241 243 open - 3 of 5
15 Sep 18:32 240 243 open - 2 of 4
15 Sep 15:02 236 243 open - 2 of 5
15 Sep 11:32 233 243 open - 3 of 8
15 Sep 04:32 142 243 open - 2 of 5
15 Sep 00:02 143 243 open - 3 of 8
14 Sep 17:22 142 243 open - 35 of 88
11 Sep 02:40 143 243 open - 2 of 4
10 Sep 23:40 142 243 open - 4 of 7
10 Sep 17:40 143 243 open - 2 of 2
10 Sep 16:40 142 243 open - 1 of 4, 3 no hourly record
10 Sep 13:40 143 243 open - no hourly record
4 Sep 01:40 142 243 open - no hourly record
3 Sep 01:40 143 243 open - no hourly record
2 Sep 22:40 140 243 open - no hourly record
2 Sep 18:40 140 232 open - no hourly record
2 Sep 15:40 140 243 open - no hourly record
2 Sep 13:40 140 232 open - no hourly record
2 Sep 11:40 140 243 open - no hourly record
2 Sep 10:40 140 232 open - no hourly record
2 Sep 09:40 140 243 open - no hourly record
2 Sep 01:40 140 232 open - no hourly record
1 Sep 01:40 141 232 open - no hourly record
31 Aug 23:40 135 219 open - no hourly record
31 Aug 22:40 135 232 open - no hourly record
31 Aug 21:40 135 219 open - no hourly record
31 Aug 19:40 135 232 open - no hourly record
31 Aug 16:40 135 219 open - no hourly record
31 Aug 15:40 135 232 open - no hourly record
31 Aug 13:40 135 219 open - no hourly record
31 Aug 12:40 135 232 open - no hourly record
28 Aug 01:40 135 219 open - no hourly record
27 Aug 22:40 133 219 open - no hourly record
27 Aug 21:40 135 219 open - no hourly record
27 Aug 20:40 133 219 open - no hourly record
27 Aug 19:40 135 219 open - no hourly record
27 Aug 10:40 133 219 open - no hourly record
21 Aug 17:40 133 207 open - no hourly record
18 Aug 04:30 132 194 open - no hourly record
17 Aug 15:07 125 194 open - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

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.

Class chat

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