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CH ENGR 104B · Lec 1

Chemical and Biomolecular Engineering Laboratory II

Fall 2026Wright, T.A. and Simonetti, D.A.6 units

Seats, time, final and grades

Seats

Open, 2 seats left.

38 of 60 enrolled, lecture and all discussions summed.

Subtract those two and the lecture has 22 places in it. The 2 seats above are what is open in the discussions, and you enroll in a discussion, so that is the figure that decides whether you get in.

Meets

TR 12:00pm-1:50pm

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

Final

None on the page dibs read

No exam time on the page dibs read. That is not the registrar saying there is no final.

Grades

3.75
predicted, this instructor · 113 grades

113 letter grades, Wright, T.A. and Simonetti, D.A..

Read 84 minutes ago. This is a recent reading, not a live seat count.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Undergraduate Chemical Engineering Majors".

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

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 3 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

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.

2 discussions, 1 open: Lab 1A, MW 8:00am-11:50am.

  • Lab 1A

    MW 8:00am-11:50am

    Geldmeyer, A., Kasten, J.F., Tang, C., and Kaley, R.

    Open, 2 seats left.

  • Lab 1B

    TR 8:00am-11:50am

    Geldmeyer, A., Kasten, J.F., Tang, C., and Kaley, R.

    Waitlist, 1 of 10 places taken.

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: TR 12:00pm-1:50pm

Discussions: MW 8:00am-11:50am

Boelter Hall 5436

Grades

3.75
predicted, this instructor · 113 grades

Of the 5 other people in the grade record for CH ENGR 104B, the 2 with the most grades: SRIVASTAVA, SAMANVAYA at 3.75 over 113 grades and CHEN, IRENE at 3.80 over 39 grades.

A range
88%
P/NP
-
letter grade only
D/F/W
2.7%

Full grade history for CH ENGR 104B

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. 4.0 of 5 for Thaiesha Wright, where 5 is lightest. Read 30 days ago.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Will it still be here

low 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.

  • 3521F
  • 1322S
  • 3922F
  • 4023F
  • 3924F
  • 3425F
Enrollment by term: 21F 35, 22S 13, 22F 39, 23F 40, 24F 39, 25F 34

Peak 40 · most recent 25F at 34

Seats over time

Filled by 1 over about 2 months

38 of 60 · 2 left in its discussions
17 Aug 15:079 Sep 07:091 Oct 23:12
dibs read 168 of the 691 hours its hourly record covers, 24%, and did not look in 523. dibs had no hourly record before 3 Sep, which is the other 398 of 1089 plotted.38 of 60 enrolled at the newest reading, 84 minutes ago, with 2 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 23:12, 37 to 38. dibs read 168 of the 691 hours its hourly record here covers, 24%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 523 hours dibs was keeping a record and did not reach this section. Nothing before 3 September at 05:00, where this section's record starts, has a read either way, which is 398 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: 84 minutes ago.

Show the readings (9)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 23:12 38 60 open - 46 of 164
25 Sep 04:12 38 60 open - 8 of 28
24 Sep 01:12 39 60 open - 2 of 5
23 Sep 21:42 38 60 open - 3 of 8
23 Sep 14:22 39 60 open - 14 of 48
21 Sep 15:12 38 60 open - 35 of 124
16 Sep 12:22 37 60 open - 11 of 40
14 Sep 21:42 36 60 open - 56 of 679, 398 no hourly record
17 Aug 15:07 37 60 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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