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CHEM 111: Principles of Chemistry II at York College

3.5 credits · Fall 2026

Principles of Chemistry II (CHEM 111) at York College has 2 ways to take it in Fall 2026, plus 2 recitation or lab times you pair with a lecture. 4 of 4 sections have an open seat right now.

Professors teaching it: Thushara Abeyweera and Elmer-Rico Mojica.

Of the 2 professors with a Chill Rank, Thushara Abeyweera ranks chillest (Fair) and Elmer-Rico Mojica least chill (Fair).

Compare them below, check the days and times, and add the course to your schedule.

This course meets as a lecture plus a recitation. Your schedule needs one time from each, and the schedule builder picks them together.

Requirements

NOT OPEN TO STUDENTS WITH CREDIT IN CHEM 102 OR 200-LEVEL CHEM OR ABOVE; PREREQUISITE: [ CHEM 101 OR {CHEM 108 AND CHEM 109}] and COREQUISITE: CHEM 112

About this course

A continuation of Chemistry 108. Topics include: thermodynamics, kinetics, equilibrium, buffers, titrations, redox reactions, electrochemistry. Not open to students with credit for CHEM 102.

Best professors for CHEM 111 at York, Fall 2026

Ordered chillest first. A Chill Rank compares a professor with other CUNY professors on Rate My Professors difficulty, rating and would-take-again; it needs at least 3 ratings. How it works

CHEM 111 sections, times and seats

Seat status as of Oct 4, 5:02 PM ET. Seats can change between refreshes. How fresh is this?

Chill Rank compares professors using Rate My Professors reviews, from Chill to Brutal. What each rank means

You need one lecture and one recitation. They can be combined freely, so pick each separately; the schedule builder checks the times together.

Tue · 10:00 AM - 11:50 AM
Thu · 10:00 AM - 10:50 AM
NO-LEC · In Person · Acad Core 2M05
Thushara AbeyweeraChill Rank 3 of 5: Fair?★ 4.2(71)Difficulty 3.3/5 · 81% would take again#1 chillest of 2 for this course
Open
Sat · 9:00 AM - 11:50 AM
S3-LEC · In Person · Acad Core 4M07
Elmer-Rico MojicaChill Rank 3 of 5: Fair?★ 4.1(47)Difficulty 3.2/5 · 71% would take again#2 chillest of 2 for this course
Open
Pick a recitation · 2 recitations · 2 open · 11:00 AM to 12:00 PM start times
  • R141-RECThu · 11:00 AM - 11:50 AM
    Thushara AbeyweeraChill Rank 3 of 5: Fair?★ 4.2(71)Difficulty 3.3/5 · 81% would take again#1 chillest of 2 for this course
    In PersonOpen
  • S12-RECSat · 12:00 PM - 12:50 PM
    Elmer-Rico MojicaChill Rank 3 of 5: Fair?★ 4.1(47)Difficulty 3.2/5 · 71% would take again#2 chillest of 2 for this course
    In PersonOpen

Questions about CHEM 111 at York

Who teaches CHEM 111 at York in Fall 2026?
Thushara Abeyweera and Elmer-Rico Mojica are listed for Fall 2026. Each name links to a page with their Chill Rank and Rate My Professors numbers.
Is CHEM 111 at York hard?
It depends on the professor. Across the 2 professors with a Chill Rank, students on Rate My Professors give an average difficulty of 3.3 out of 5. The Chill Rank above compares them directly.
What if a CHEM 111 section is full?
Try another section, join the waitlist in CUNYfirst if there is one, or ask the department. You can also watch a full section and get an email when a seat opens; you still enroll yourself in CUNYfirst.